History Characters / HaruhiSuzumiya

* AdaptationInducedPlotHole: More regarding characterization. The character songs for the anime's first season were released prior to the tenth-novel preview; building off the fact that she's an interface, the songs portrayed her as someone reaching for humanity and wanting to participate in the fun everyone else has but being unable to. The tenth-novel preview, however, revealed that [[spoiler:she doesn't give a damn about anything that interferes with what the Entity wants, not even Yuki's personal safety.]]

* CasanovaWannabe: Oh boy. [[SexinessScore Rates all the girls in school on an A-F scale meticulously]], and flirts with them a lot too. Accumulates years worth of experience with the successful rate of zero.

* NoPronunciationGuide: She writes that she would prefer her name be pronounced like it's written in katakana. The rest of the brigade has absolutely no clue as to what this is supposed to mean. Haruhi (whose given name is always written in katakana) thinks it's significant, but Kyon believes it's just DistinctionWithoutADifference.

* SempaiKohai: As a first year, she's a kohai to the entire SOS Brigade. [[spoiler:In the phone call, she refers to Kyon as "Sempai".]]

* FieryRedhead: Inverted; while she's more competent and self-confident than her present-day self while also have red hair, she's still very calm most of the time.

->'''Voiced by''': Creator/AkioOhtsuka (JP), Michael Forest (EN)

* UncannyValleyGirl: She keeps up that impeccable smile at all times. ''All'' times.

* WhenSheSmiles: Subverted; her smile is beautiful, but it's [[UncannyValley just not right]].

* TokenRichStudent: She's from a ''very'' rich family, but she still goes to a high school that's mentioned to rather average in regards to academics and seems to be largely made up of students from middle-class backgrounds.

%%* ShesGotLegs

These are the characters that appear in the ''LightNovel/HaruhiSuzumiya'' series of anime and light novels. A warning: this series is [[{{Troperrific}} the poster child of tropes]], so entries could get a bit long.

* FullNameBasis: Or a Japanese variant thereon: he always addresses female students with the honorific "-kun," which is typically used for boys and young men. As Wiki/ThatOtherWiki notes, there are two exceptions to that practice, "in business settings, young female employees may also be addressed as -kun by older males of senior status," and "in the Diet of Japan (Legislature), chairpersons use -kun when addressing diet members and ministers." Either way, he's being pretentious.

* MoeStare: Usually depicted with one.

* UpToEleven: Haruhi wishes the new member to be cuter than [[{{Moe}} Mikuru]], more polite than [[StepfordSmiler Itsuki]], and more obedient than [[TheQuietOne Yuki]]. She gets exactly that.

** [[Characters/HaruhiSuzumiyaTheCharacter Haruhi herself]]

* [[Characters/HaruhiSuzumiyaTheCharacter Haruhi herself]]

* BarrierMaiden: The rest of the [=SOS=] Brigade hang out with Haruhi partly to prevent TheEndOfTheWorldAsWeKnowIt.
* BeautyBrainsAndBrawn: Mikuru, Yuki and Haruhi. Kyon thinks Mikuru's future self is supermodel level, Yuki is smarter than any human being, and Haruhi is the envy of all the athletes in the school.
* FiveTemperamentEnsemble:
** Kyon: Phlegmatic/Choleric
** Haruhi: Sanguine/Choleric
** Itsuki: Phlegmatic/Melancholic
** Mikuru: Melancholic/Phlegmatic
** Yuki: Leukine

* NiceMeanAndInbetween: Out of the three girls, [[TheCutie Mikuru]] is nice, [[SociopathicHero Haruhi]] is mean, and [[TheStoic Yuki]] is in-between.

* TownGirls: Haruhi is a boisterous, sporty {{Shorttank}} (Butch), Mikuru is a sweet, emotional GirlyGirl (Femme), and [[BadassBookworm Yuki]] is the Neither.
* TwoGirlsToATeam: Gender-inverted; the SOS Brigade is made up of three girls and two boys.

[[folder:Haruhi Suzumiya]]
-->See her page [[Characters/HaruhiSuzumiyaTheCharacter here]]

[[folder:Kyon]]
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/kyon.png]]
->'''Voiced by''': Creator/TomokazuSugita (JP), Creator/CrispinFreeman (EN)

-> ''"The question of how long someone believed in Santa Claus is a worthless topic that would never come up in idle conversation. Having said that, if you're going to ask me how much of my childhood I spent believing in an old man in a red suit, I can confidently say that I never believed in him to begin with."''

The viewpoint character and {{narrator}} of the series. Kyon is nothing more than a [[BrilliantButLazy bright but somewhat lazy]] OrdinaryHighSchoolStudent who has given up his childhood fantasies of aliens, [[TimeTravel time travelers]], [[PsychicPowers espers]], interdimensional travelers, [[GovernmentConspiracy Government Conspiracies]], etc., as he explains in his opening narration on his first day of high school. He [[IJustWantToBeNormal just wants his high school life to pass by uneventfully]].

Unfortunately for him, his curiosity gets the better of him when he is introduced to irritable {{Cloudcuckoolander}} Haruhi Suzumiya, and they strike up a sort of friendship, which eventually leads to him being the first member inducted into her bizarre "SOS Brigade", a club dedicated to finding all those things Kyon refuses to believe exist.

[[SkepticismFailure Naturally, all of them turn out to be real]]. And they all join the club, to boot.

What follows is the story of an ordinary ([[EpilepticTrees maybe]]) young man caught up in extraordinary events. While he constantly bemoans the insanity he's been thrust into, he [[UnfazedEveryman adapts to it]] out of necessity, and gradually (several novels into the series) comes to look on the lunatics he hangs out with as a sort of TrueCompanions, helping them prevent TheEndOfTheWorldAsWeKnowIt with a resigned sigh and a constantly suppressed panic.

Kyon [[UnreliableNarrator presents himself in the narration]] as a [[BlatantLies levelheaded, objective, philosophical guy]].

* AccidentalPervert: Although his thoughts regarding Mikuru sometimes move toward CovertPervert territory.
* ActionSurvivor: Several times. One of the most dramatic ones being when he's attacked by Asakura, which causes some severe MoodWhiplash.
* AgentScully: At first. Now he wants to go back to being a Scully. But he gets so much incontrovertible proof thrown at him early on he becomes a rather grumpy AgentMulder.
* AlternateCharacterReading: Apparently the nickname "Kyon" is a shortened form of a rather obscure reading of his name. Of course, we still don't know what his name ''is'', so...
* AlternateSelf: [[spoiler: From the ninth novel on, [[ForWantOfANail the narrative is split into]] [[AlternateTimeline separate (but concurrent) timelines]], and both unknowing Kyons recount the events of both the SOS Brigage gaining a new member (line α), and facing off against the Anti-SOS Brigade (line β). By the end of the eleventh novel, he is recombined as one, and given a FlashSideways, thereby easily being able to recall his experiences in both timelines.]]
* AwLookTheyReallyDoLoveEachOther: With Haruhi, ''very'' frequently. [[spoiler: Has a subtle but serious one when he accidentally travels a few years into the future in ''Surprise''; the now college-age Haruhi smiles at him in a way the current Haruhi never has, making him "dizzy". The moment is interrupted by future-Kyon calling out to her.]] This moment is particularly noteworthy in that at the end of "Wandering Shadow", [[spoiler: Kyon speaks of having arbitrarily received a book from Nagato about the romance of a boy and girl transitioning from high school to college together, his thoughts simultaneously referencing Nagato's "fortune telling" abilities.]]
* BadassBaritone: It's Crispin Freeman, what'd you expect?
* BadassBoast: The message he gave to the Data Entity. [[spoiler: "If anything happens to Yuki Nagato; I will let all hell break loose." He tells Yuki to tell the Data Entity that if it ever remotely thought of punishing her; he'll tell Haruhi everything. And make her believe it with "I am John Smith." Then he and the SOS would go as far as destroying existence and rebuilding it to get Yuki back. Oh, and the rebuilt reality would not have the Data Entity in it.]]
* BadassBookworm: Not in Yuki level, but qualifies to a degree. For bookworm part, he can make references on obscure and complex topics. For badass part, he can freaking [[spoiler: recreate the world by telling Haruhi that he's John Smith]].
* BadassNormal: It´s really impressive, how a humble human can fare against aliens, espers, time travelers and monsters and how far he can get just by saying the [[TrustPassword right words]] at the right time.
* BadassUnintentional: At least at first.
* BeleagueredAssistant: To Haruhi.
* BelligerentSexualTension: That's the whole point of the Kyon/Haruhi ship. Haruhi's a JerkWithAHeartOfGold, Kyon's a {{Tsundere}} who wouldn't dare beat up God. [[spoiler: Actually he's stopped by Koizumi when he moves to strike her.]]
* {{Bishonen}}: Just [[http://i55.photobucket.com/albums/g131/monkey1221/haruhi%20suzumiya/suzumiya7.jpg look.]]
* TheBigGuy: Per Haruhi, being the one who does grunt work for the group
* BishieSparkle: Once, during the second ''Endless Eight'' episode.
* BlatantLies: Uses one whenever he's caught with Yuki.
* BookDumb: Lampshaded by Kyon himself: ''"Why is it that I can be so smart when it comes to reading Nagato's facial expressions or Koizumi's hidden clues, but fail to answer every single test question?"''
* TheCallKnowsWhereYouLive: No matter how hard he tries, he just keeps getting dragged into everything.
* CassandraTruth: Kyon stutters out an explanation of the SOS Brigade to Haruhi in the prologue of ''Sigh''. She doesn't buy a word of it. Obviously.
* CatchPhrase: "Yare yare"[[note]]In English: "Good grief"[[/note]] [[spoiler:which he picked up from Sasaki]].
* CharacterDevelopment: As mentioned under PinballProtagonist Kyon goes from being incredibly BrilliantButLazy to much more assertive and active in the story's action. This is because his lack of action and over-reliance on the other SOS Brigade members (especially Yuki) lead to the events in ''Disappearance.''
* AChatWithSatan: His confrontation with...[[https://www.youtube.com/watch?v=bLea0MTifwo himself in the movie.]] Does he [[IJustWantToBeNormal just want to be normal]] or not? Make a choice and stop [[ContemplateOurNavels Contemplating Our Navel]].
* ChickMagnet: He seems to be one due to the fact all the girls like him. While most of the SOS girls have reasons he's the only guy they interact with, He's Haruhi's first friend ''since elementary school'' according to Taniguchi, Mikuru has [[spoiler: regulations that limit how much impact she can have on this [[TimeTravel timeplane]]]] and Yuki [[TheQuietOne won't talk]] to anyone unless she has to. Still, Tsuruya seems to [[FemaleGaze approve of him]] and there is [[spoiler: Sasaki]], so he seems to fit.
* TheChosenOne: Yuki, Mikuru and Itsuki all say that Kyon is "chosen" by Haruhi. Chosen for what? Nobody's sure, but the events by the end of ''The Melancholy'' gives one meaning that he is the only person in a supposedly boring world that Haruhi would rather be with.
* ChronicHeroSyndrome: Possibly the only reason he never pulls a ScrewThisImOuttaHere.
* ClassicalAntiHero: He starts out as one before developing into a KnightInSourArmor.
* ClosetGeek: He tries to downplay his hobbies, but it's shown that he's a avid manga reader, plays lots of video games, may be familiar with American cinema (in the anime he wears the wristwatch from Film/MenInBlack, and mimics [[Film/BackToTheFuture Marty McFly's]] sleeping position) and mentioned model-making as a hobby (with a focus on giant robots).
* CloudcuckoolandersMinder: Kyon hangs out with Haruhi mostly to keep an eye on her antics and stop them from going too far.
* ConsummateLiar: First word of advice with Kyon he's both easy to trick and a Tsundere so half of his dialogue is him lying.
* TheComicallySerious
* ConvenientlySeated: In the traditional second-from-the-back window seat when the seats change, and ''always'' right in front of Haruhi.
* CovertPervert: Overwhelmingly towards Mikuru. He does occasionally admit that he thinks Haruhi is [[MaleGaze nice to look at]] and sometimes does for Yuki as well.
* CrouchingMoronHiddenBadass: How the supernatural 'operatives' view him. He's a lazy, purely mortal high school student, with no training or prior knowledge of Haruhi. But he has the courage and freedom to act that they do not, and he ''will'' use it.
* DeadpanSnarker: Dear God, ''the'' DeadpanSnarker. Second only to the [[Franchise/SpiderMan Web Head]] and WesternAnimation/{{Daria}}, and just barely edging out the other one with his girlfriend's name.
** Taken [[UpToEleven to hilarious extremes]] in [[https://www.youtube.com/watch?v=C7bQG6LcMDY his version of Hare Hare Yukai]] in his ImageSong album, itself a sarcastic parody of the original song, where he keeps interjecting in between ''his own singing'' to snark at the lyrics.
** Just read the [[http://animetranscripts.wikispaces.com/Haruhi%3E25.+The+Adventures+of+Mikuru+Asahina+Episode+00 script for episode 0]]. Any text in blue is Kyon and is pretty much 100% free range organic snark.
* DidIJustSayThatOutLoud: Both the novel and the anime play with this. In the novel, Kyon's dialogue is very rarely formatted as such, leaving it indistinguishable from his usual narration. The only way to tell if he's either saying or thinking something is from his interlocutors' responses. The anime achieves this effect by having his mouth offscreen during these parts. In both cases, it is the audience that is meant to be confused, Kyon himself never makes the mistake.
* DidYouJustPunchOutCthulhu: Did you just French the Lord thy God? And in the second season of the anime, he literally tries to punch out God. And for his next trick, one must emphasize, he [[spoiler:''blackmails'' the ''[[SufficientlyAdvancedAlien Data Overmind]]'']]. Really, considering the nature of both Haruhi and the threats he faces, [[DidYouJustIndexCthulhu this entire index]] applies to him. Thankfully [[EndOfTheWorldAsWeKnowIt given what it would most likely lead to]], DidYouJustPunchOutCthulhu has thus far been averted (just).
* {{Dismotivation}}: One might ask if he's gonna be an AlmightyJanitor someday.
* EvenTheGuysWantHim: [[MemeticMutation Everyone is Itsuki for Kyon!]]
* FacePalm: Often does one anytime Haruhi brings up her crazy ideas for the SOS brigade.
* FemaleGaze: The Endless Eight arc just loves showing Kyon [[ShirtlessScene lacking upper body wear]], and in some shots he's noticeably more muscular than others.
* FauxlosophicNarration: The series is about 90% Kyon talking to himself.
* FilmingForEasyDub: Used in the anime to recreate the novels' lack of distinction between Kyon's thoughts, narration and speech.
* FirstNameBasis: With Haruhi.
* FirstPersonPeripheralNarrator: Either played straight or subverted; the former if you believe Haruhi is the main character, and the latter if you believe Kyon is the main character.
* FirstPersonSmartass: A variation of the character type, as even though he's very [[FauxlosophicNarration intelligent]] and [[LittleProfessorDialog literate]], he's BookDumb and rarely gets anything more than a B+.
* FlashbackNightmare: Though a daydream and not a nightmare, one of his [[AsleepInClass dreams in class]] is a word-for-word flashback of a conversation he had with [[ForgottenChildhoodFriend Sasaki]] about quantum physics.
** He also has dreams about the time he and Haruhi were trapped in Closed Space together.
** "Editor-in-Chief Straight Ahead!" suggests he has them about the events of ''Disappearance'':
--->I did not want to remember that bespectacled Literature Club member who wore a troubled face in front of an outdated computer at a time like this. Seeing her in my dreams at night is enough.
* {{Foil}}: Arguably the whole point of the Haruhi/Kyon relationship is how their opposing personalities come to a balance.
** Foil to the rest of the Brigade as well in certain ways personality wise, being the OnlySaneMan that glues the team together.
** Can serve as this to his more average friends too.
* FireForgedFriends: With Itsuki Koizumi. He initially dislikes and distrusts Koizumi, seeing him as a suck-up to Haruhi, does not initially even notice when Koizumi's class vanishes in the 4th novel, and the two seem to share a unstated mutual jealousy. Kyon starts warming to Koizumi as an ally around the 6th or 7th volume, and by ''Dissociation,'' the two boys have come to trust each other as allies, Kyon admits (internally) that he gets bored in the SOS Brigade clubroom without Koizumi there to play games with, and has even started tacking Koizumi's name unto the list of people he cares about (whereas earlier novels only listed Haruhi, Mikuru, and Yuki). They are still definitely VitriolicBestBuds, though.
* FreakOut: Has one for an entire day during ''Disappearance'' while he realizes what's going on.
* GrammarNazi: To give just one example, he always uses 訊く for "kiku" in the sense of "to ask". 聞く is the accepted norm, because although it isn't strictly correct -- it actually means "to hear" -- the character 訊 occurs rarely and is not taught in school.
* GratuitousEnglish: Dubbed in one instance into GratuitousJapanese.
* GrumpyBear: Always negative about everything... when most people would give anything to be in his position.
* GuileHero: Eventually becomes this. He achieves some truely impressive feats on this front as well, such as [[spoiler: blackmailing the Data Integration Thought Entity to keep it from taking Yuki away by threatening that he can convince Haruhi to use her RealityWarper powers to do all kinds of horrible things with only a single phrase.]]
* HardWorkHardlyWorks: The rest of the Brigade have been training their whole lives (or so it is implied, at least) to work with God and keep her from endangering the world. Kyon is an OrdinaryHighSchoolStudent who works with God because...she grabbed him by the collar and forced him to.
** If one subscribes to the theory that Aware!God!Haruhi consciously planned the series' events ForTheLulz, this turns into FridgeBrilliance. She knew that the supernatural races would try to manipulate Mortal!Haruhi, if only out of fear, so she created someone who would look out for her interests and interact with her as a human, not a god.
* TheHero: Given everything he does for the sake of maintaining the Universe and helping his friends, he's one of these; albeit one who complains a lot.
* HeroicBSOD: In TheMovie; when he's confronted with a normal world. Everything he's always said he wanted; and isn't happy; a mental version of himself pushes him down and tramples on him; mocking all the things he had said in the past; until Kyon rips out from deep inside himself that yes, he wants a world of time travellers, espers, and aliens.
* IJustWantToBeNormal: At first.
* ImpaledWithExtremePrejudice: In the fourth novel[=/=]TheMovie.
* InnerMonologue: All the time.
* IShouldHaveBeenBetter: His reaction to Yuki gaining emotions, and the consequences thereof. He notes that it's a ''really'' common plot, and as someone who prides himself on paying attention, he should have stepped in and spoken with her before things got out of hand.
* ItsAllMyFault: He feels personally responsible for the events of ''Disappearance'' as even though the Integrated Data Thought Entity failed to give Yuki a more complete personality (which put a strain on her) he decides that his over-reliance on her was the straw that broke the camel's back.
* JerkWithAHeartOfGold: Despite his snarky dismissal of, well, everything and everybody, Kyon is a deeply compassionate person who treats everyone equally and seriously in thought, if not in action. This applies whether they're a normal student, a [[WhatMeasureIsANonHuman living computer]], or God.
* TheLancer: His deadpan normal-seeking personality does contrast Haruhi's energic paranormal seeking.
* TheLeader: Type 2 'level headed'. The other three look to ''him'' more often for orders than Haruhi and even she listens to him occasionally.
* LastNameBasis: Refers to everyone by their last names apart from Haruhi. Even when asked by Mikuru to use her first name, he continues to use her last name.
* LemonyNarrator: He's already a DeadpanSnarker in general, and this naturally bleeds into his narration in both the light novels and the anime. He also serves as this when he plays the narrator in the SOS Brigade's movie, where he can't help but make sarcastic asides.
* LittleProfessorDialog:
** Even disregarding all the esoteric knowledge and vocabulary that very few 16-year-olds would be expected to know, Kyon's speech patterns make him sound ''much'' older, as though he grew up in the 1950s or '60s.
** The author himself lampshades this during an interview:
--->'''Nagaru''': In a sense he reasons philosophically although he is a first-year student of high school.
* MaleGaze: Makes his filming of the student film...interesting.
-->'''Kyon:''' [[Anime/NeonGenesisEvangelion Position target in the center, pull the switch.]]
* MeaningfulName: [[http://en.wikipedia.org/wiki/Cynic According to Wikipedia]], Kyon's nickname might come from κύων / kyôn, Ancient Greek for "dog", from where the word "cynic" may come from. Another possibility: Haruhi in the novels loves the story of Tanabata, involving a romance between a man and a woman separated and only allowed to meet once a year; the Korean name for the man can be romanized as 'Kyonu'. Kyon's real name remains undisclosed. This alone implies that it is relevant, and [[spoiler: Sasaki]] tells us the full name Kyon prefers is noble, and the sort which one would question the reasoning behind....
%%* MetaGuy
* MistressAndServantBoy: His relationship with Haruhi, to an extent.
* MoralityChain: The only reason Haruhi got any nicer is Kyon. And [[TheEndOfTheWorldAsWeKnowIt we don't wanna know what would happen if he died.]] Without Kyon around Haruhi's selfish, arrogant and domineering. With Kyon around she's... let's start that over. At the start of the series she's incredibly abrasive and thinks only of herself, but as the series goes on his influence on her leaves her as someone that is still annoying to be around, but at least a person that thinks of others.
* MrFanservice: Remote Island Syndrome and the Endless Eight arc in particular have him shirtless a lot.
* MyGodWhatHaveIDone: Kyon at first seems to constantly despise Haruhi's antics even though he begrudgingly goes with the flow. He often complains about wanting to have a perfectly normal life. Then in the Disappearance film and novel, [[spoiler: Nagato]] changes the world to more or less be a normal one without crazy stuff going on. After some soul searching within himself, he realizes that he prefers the crazy world after all.
** He also has one in the anime adaptation of ''Sigh'' after realizing [[DidYouJustPunchOutCthulhu just who he had nearly punched in a blind fury]] at the same time ''she'' invokes this trope (you can tell by how she's [[CryCute struggling to fight back tears]]).
** Also for the disappearance example he feels responsible because he was constantly relying on Yuki all the time to solve everyone's problems which he felt caused her FreakOut.
* NayTheist: He can't deny that the supernatural exists but prefer it leave him alone. He gets over it.
* NonActionGuy: When compared to Yuki or Itsuki, at least.
* NonActionSnarker: More snarky than violent or a fighter.
* NoNameGiven: For anyone in his family, [[OnlyKnownByTheirNickname including himself]].
* NotAMorningPerson: He'd always be LateForSchool if not for his sister's daily glomps.
* NotSoAboveItAll: Kyon admits to himself that he does, in fact, enjoy the crazy antics the SOS-Dan finds themselves in.
* NotSoDifferentRemark: From Taniguchi, he realizes in ''Sigh IV'' that Taniguch's complaining about the film is no different from his own complaining about Haruhi.
* NotWhatItLooksLike: One example of this happens when he's holding Nagato as Taniguichi walks into the classroom. He even tries [[BlatantLies a lie]] later to cover it, but Taniguichi doesn't believe him.
* ObfuscatingStupidity: Especially obvious in the novels, where we see even more of his thought process.
* OnlyKnownByTheirNickname: "Kyon" is just an irritating nickname his aunt once gave him and that his sister spread, that ended up sticking despite all his efforts to discourage it.
* ObliviousToLove: Kyon's (un)awareness of Haruhi's attraction to him is complicated to judge.
** On the one hand, there are a few points where his internal dialogue makes it clear that he's aware of it, which means that there is definitely some SelectiveObliviousness going on (required for stretching the WillTheyOrWontThey for ''ten freakin' novels''). For example, in "Live Alive," Kyon rejects Taniguchi's suggestion that they go try to pick up girls, precisely because there'd be huge trouble if "somebody" saw him doing that.
** On the other hand, there are places where Kyon acts in a way that seems genuinely oblivious to Haruhi's attraction. For example, in "Melancholy IV," Kyon suggests to Haruhi to "find [herself] a nice guy and go walking around the city looking for strange things; [she] could even call it a date and kill two birds with one stone," which is a very stupid (and maybe even cruel) thing to say if you realize that that was '''exactly''' what Haruhi had wanted to do with Kyon in the mystery search the previous weekend.
** This scene from "Remote Island Syndrome I" could go either way:
---> ''[Kyon wakes up to the sight of '''Asahina''' taking a photo of him]''\\
'''Asahina:''' I just took a picture of you waking up. And I took a couple of you sleeping. You were sound asleep, weren't you?\\
'''Kyon:''' ''[thinking]'' Really? Why would Miss Asahina want to take pictures of me sleeping?\\
'''Kyon:''' ''[still thinking, starts smiling]'' Maybe she wants to put a picture of me in a cute frame, keep it next to her bed and every night, just before she drifts off to sleep...\\
''[Haruhi brusquely takes away the camera from Asahina, who's been reviewing the photos, and puts it in her own pocket]''\\
'''Haruhi''': ''[to Kyon, interrupting his thoughts]'' What's with the goofy face? You might wanna stop 'cus you look like a moron!\\
'''Haruhi:''' ''[to everyone]'' I've temporarily given Mikuru the responsibility of being the SOS Brigade's photographer! It's important to maintain a record of the Brigade's activities for future generations. But I decide what pictures to take!\\
'''Kyon:''' ''[out loud]'' Why would anyone care what I look like when I'm sleeping or when I'm waking up?
** Itsuki [[LampshadeHanging points out Haruhi's attraction a few times]], once to tell Kyon that he and Haruhi are the new [[AdamAndEvePlot Adam and Eve]], and then later telling Kyon to embrace Haruhi from behind then whisper "I love you" into her ear. Kyon reacts angrilly, at which point Itsuki tells him it's a joke.
** ''Disappearance''!Itsuki, after having been told of the adventures the SOS Brigade has in the real world, remarks to Kyon that Haruhi took a genuine interest in the latter despite him having absolutely no powers or extraordinary traits, leading ''Disappearance''!Itsuki to whisper "I envy you" in contemplation of how fragile and ''superficial'' his own romantic relationship with ''Disappearance''!Haruhi is.
** Also made hilariously obvious in the prologue of ''Dissociation'' when Itsuki has to devote ''a couple pages'' explaining to Kyon that the reason Haruhi got upset after meeting Kyon's [[SheIsAllGrownUp childhood friend]] was because she was jealous.
* OnlySaneEmployee: Compared to everyone else in the Brigade who "works" to serve Haruhi.
* OnlySaneMan: He likes to think of himself as this, though it probably should be taken with a pinch of salt.
** It should also be noted that he accepts the eccentricities around him quite well. He claims it's because too much evidence has been thrown in his face for him to deny it, but overall he gets used to the idea of all this fantastic stuff around him much faster than any normal person would.
* OrdinaryHighSchoolStudent: Or so he would like to think. But the other SOS members, particularly Koizumi, constantly have to remind us that there's more to him than this trope alone.
** In the seventh novel Koizumi offers to train Kyon to be an esper. Apparently there are not a whole bunch of other persons who can be trained.
* PrecisionFStrike: From ''Disappearance'': "Tell them to go fuck themselves!" Watered down in the anime adaptation to "''Then you can tell them to go to HELL!''"
* RageBreakingPoint: ''Sighs'' has his patience repeatedly tested by Haruhi's bitchiness, particularly her shoddy treatment of Mikuru. [[spoiler:When Haruhi spikes Mikuru's drink, hits her over the head repeatedly, and openly calls her her "toy," Kyon snaps, furiously [[WhatTheHellHero chews her out]], and has to be physically restrained from [[WouldHitAGirl punching her lights out]]. ]]
* RidiculouslyAverageGuy: Kyon is essentially [[Administrivia/TropesAreTools the exception that proves the rule]] on this trope being an annoyance. He's a very average guy... but he's a ''realistic'' average guy, instead of the bland doormat other uses of this trope usually are. He actually hits that range of being easy to relate to because he completely avoids the pitfall of ThisLoserIsYou.
* RippleEffectProofMemory: In ''Disappearance''. [[spoiler:Yuki says at the end of the movie that while she couldn't prevent herself from rewriting reality, she COULD ensure that Kyon would be unaffected. The reason he needs protection when he goes back is because her failsafe was used up when Kyon chose to activate it at the READY? prompt. The program said that once it was run it would be deleted, so it time-travelled him outside the sphere of effect at his choice. Presumably had he chosen to stay, he would have subsequently be subjected to the re-write (as seen in the spin-off manga).]]
* UsefulNotes/RoleplayingGameTerms: In the novels, Kyon often makes tongue-in-cheek references to his HP and MP and Haruhi's negative effects on both.
* SavvyGuyEnergeticGirl: Savvy Guy to Haruhi's Energetic Girl.
* ScrewTheRulesImDoingWhatsRight: [[spoiler:Kyon's personal theory as to why Yuki granted him his RippleEffectProofMemory in ''Disappearance'', because he would choose to do the right thing and stop her despite being granted his fantasy]].
* SecretKeeper: He never breaks TheMasquerade, though he comes close in one of the Endless Eight episodes where he outright says Yuki is an alien to Haruhi, something she completely ignores.
* SensitiveGuyAndManlyMan: Manly Man to Itsuki's Sensitive Guy. This gets played with, as though he's one of the more badass characters in the series (even weaponizing Haruhi to prevent the Data Overmind from killing Yuki), he's more of a NonActionGuy than anything.
* ServileSnarker: He's very snarky towards Haruhi, who treats him as essentially nothing more than a slave and toy for her amusement.
* SharpDressedMan: His outfits in Endless Eight are of the casual variety but still incredibly sharp and stylish. He even manages to out-dress some of the girls.
* SheIsNotMyGirlfriend:
** With Haruhi. He does like Mikuru, [[spoiler: but is forbidden to date her due to her restrictions as a time traveler. Not to mention the one time he accidentally got a little too friendly with her, Haruhi [[TheEndOfTheWorldAsWeKnowIt nearly destroyed the world.]]]]
** Neither is Yuki, even if they were on the floor in a [[NotWhatItLooksLike compromising position]].
** And neither was Sasaki.
* ShipTease: With ''everyone'' in TheTeam, bordering on an UnwantedHarem.
* TheSnarkKnight: Kyon is this trope in spades. Most of his dialogue revolves around him being snarking over how the world literally revolves around Haruhi's whims.
%%* SpiderSense
* SitcomCharacterArchetypes: The most sane and serious, that is, to the point of humor at times.
* StableTimeLoop: Kyon is particularly careful about not screwing these up when he gets involved.
* StockLightNovelEveryman: He can be considered the TropeCodifier; he's an OrdinaryHighSchoolStudent who initially [[IJustWantToBeNormal has resigned himself to living an ordinary life]], but it isn't long before he finds himself roped into a club where the other members are definitely ''not'' ordinary. He's a major DeadpanSnarker (which extends to [[LemonyNarrator his narration]]) and often acts as the StraightMan to Haruhi's antics. He's also a NonActionGuy due to lacking any powers or fighting ability like Yuki or Koizumi, so he typically has to use his wits to get out of sticky situations.
* StraightMan: Kyon is always the one to call Haruhi out whenever she does something too ridiculous.
* StupidSexyFlanders: Fanboys are so hot for Kyon, and yet so doggedly heterosexual, that a GenderFlip version called "Kyonko" was made to satisfy the fantasy. At least one of the reasons for Kyonko's popularity involves the way [[DeadpanSnarker Kyon's personality]] just ''works'' for [[LittleMissSnarker her]].
* SupportingLeader: Mixed with AProtagonistShallLeadThem, resulting in SupportingProtagonist, since at first glance it may look like Haruhi is the main character (she is after all the poster girl) when [[POVBoyPosterGirl she's]] [[DecoyProtagonist not]]. It's patently obvious how much the other SOS Brigade members respect his judgment (even ''Haruhi'') and leadership to the point where some people think for all Haruhi's bluster it's actually Kyon who's calling the shots.
* SupportingProtagonist: When Haruhi dominates the spotlight on screen.
* SuspiciouslySpecificDenial: No, he doesn't have footage of Mikuru changing clothes nor feel any jealousy when Haruhi makes Itsuki the Deputy Brigade Leader. [[UnreliableNarrator Trust him]].
* TalksLikeASimile: His narration is littered with disturbingly descriptive comparisons.
* TallDarkAndHandsome: Dull appearance, but also quite attractive and good looking in school.
* TallDarkAndSnarky: Doesn't stand out, but is a DeadpanSnarker.
* TheTeamBenefactor: A variation. Haruhi makes him pay for their food wherever they go.
* TheTeamNormal: Subverted. While he insists that he's a normal person, Itsuki thinks otherwise.
* ThatMakesMeFeelAngry: For all of his emphatic narration, we rarely see Kyon show any emotion about anything at all. We can, however, expect entire paragraphs dedicated to his insistence that he's emotionally overwhelmed about something. This isn't to say he doesn't show emotions; merely usually not quite the ones he's talking about at the time.
* TrueCompanions: Starting around the third through fifth published books.
* TrueLovesKiss: Sort of.
* TrustPassword: Revealing to Haruhi that [[spoiler: he was John Smith]] will make her believe everything he says.
* {{Tsundere}}: A male Dere type who only gets angry when provoked. While he's endlessly exasperated by Haruhi's problematic personality, deep down Kyon thinks it's fun to hang out with her.
* UnfazedEveryman: Kyon does have one thing that sets him apart from everyone else: [[spoiler:[[TrustPassword He's John Smith]]]]. This fact puts him in BadassNormal territory, because it allows him to control Haruhi, Yuki's boss, and almost anyone who knows of Bamboo Leaf Rhapsody. It also explains why Haruhi gravitated towards him: [[spoiler:he's the reason she came to North High to begin with (she just doesn't know it yet)]].
* UnreliableNarrator: Essays can be written here.
* UnwantedHarem: It's perfectly easy to make the case that everyone in the SOS Brigade, ''even Itsuki'' (what with the [[ShipTease sheer amount of]] HoYay), is out for him. Though downplayed in that he actually WANTS Mikuru, who is '''not''' the archetypal "first girl" of the Harem. He has also expressed interest in Yuki. Most of all, he made out with Haruhi, which is followed by him cursing away at his subconscious, and noting that it doesn't take Freud to comprehend the dream.
* VitriolicBestBuds: With both Haruhi and Koizumi.
* WhatBeautifulEyes: At least according to [[spoiler:Kuyo, in her first coherent sentence ever.]]
* WhatMeasureIsANonHuman:Answer: exactly the same.
** He also treats the resident esper the same as he'd treat anyone with his... [[NoSenseOfPersonalSpace quirks]].
* WhatTheHellHero: While he normally snarks about what Haruhi is doing, he rarely truly objects. [[spoiler:However, all through the movie filming in ''Sighs'' he can be seen getting angrier and more upset with each passing scene while his snark gets more and more hostile. Eventually, despite Koizumi's efforts to hold him back for fear of the consequences, Kyon nearly hits her. While he ends up being stopped, it's clear to her that he intended to do it, which was upsetting enough on her part to nearly cause another catastrophic event and, after they make up, to start being less abusive.]]
* WhoNamesTheirKidDude: Apparently his real name is weird enough that he asked his parents about it. Seems there's a story behind it, though we don't get to hear it.
* WouldHitAGirl: Haruhi seriously pushes it, once or twice. While he takes a hell of a lot of pushing for him to get that far, he will hit a girl if he ''really'' thinks that they deserve it. Such as when [[{{Jerkass}} Haruhi]] has been going [[UpToEleven above and beyond]] her [[BlackComedyRape usual abuse of Mikuru]] for days (at this point Haruhi has spiked her drink so that she will [[spoiler:be willing to kiss Itsuki, and possibly more [[ItsAllAboutMe knowing]] [[{{Jerkass}} Haruhi]]]] and is now [[RageBreakingPoint hitting the poor]] ''[[RageBreakingPoint drunk]]'' [[RageBreakingPoint girl over the head repeatedly to try to make Mikuru listen to Haruhi's directions]])) he finally snaps and goes to hit her to teach her a lesson, only failing to connect because Itsuki physically stops him. Everyone is shocked, none more so than Haruhi.

[[folder:Yuki Nagato]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/yuki_nagato.png]]
->'''Voiced by''': Creator/MinoriChihara (JP), Creator/MichelleRuff (EN)

-> ''"..."''

Yuki Nagato is a [[TheQuietOne severely quiet]] bibliophile and the only member of the Literature Club, from whom Haruhi takes over the SOS Brigade's new headquarters. She's quickly and unresistingly assimilated into the SOS Brigade, where she's described by Haruhi as their "invaluable silent character", and helps a great deal when the club is in need of TheSmartGuy. She also enjoys reading ScienceFiction and playing the strategy game ''The Day of Sagittarius III'' possibly a bit much (although she is ''very'' good at the latter).

[[TheReveal Actually]], she's an advanced ArtificialHuman RobotGirl controlled by a SufficientlyAdvancedAlien known as the Data Overmind, which exists on a mostly non-physical level. Her purpose (and that of her fellow Humanoid Interfaces) is to observe Haruhi and her RealityWarper powers. Her CharacterDevelopment stems from her continuing closeness to Kyon, to the point that her loyalty ultimately lies towards him and the SOS Brigade.

The author of the light novels has commented that Yuki is one of his favorite characters to make stories about, since {{Robot Girl}}s are easy to write CharacterDevelopment for, hence the number of short stories (and one whole novel) focusing on her emotional development.

* ArtificialHuman: She's called a "Humanoid Interface", though the precise details are somewhat obscured by copious amounts of {{Technobabble}}. The series itself references the ''Literature/HyperionCantos'' in relation to Yuki, suggesting that she is something like a cybrid (human body, alien intelligence). It seems that the non-corporeal alien Data Overmind (and later, the Canopy Dominion) created fully biological human bodies to house data-entities in order to interact with humans. Whether the data-entities that control these bodies are minds created by the Overmind or are extensions of its own intellect is rather unclear, as the series goes back and forth on exactly how much autonomy the Interfaces have.
* BadassAdorable: She seems quite huggable because of her quietness and lack of understanding when it comes to earth tech (among other reasons) but is easily the most powerful of the SOS besides Haruhi.
* BadassBookworm: Outside of Haruhi using her RealityWarper powers, Yuki is the strongest and most intelligent member of the SOS Brigade.
* BareHandedBladeBlock: Does it one handed, and saves Kyon this way when he was about to get knifed by Ryoko. It works, naturally, but it results in a ''really'' nasty cut in her hand.
* BattleButler: Not to be confused with the SOS's battle waitress.
* BeautyBrainsAndBrawn: Two ways, with the SOS-dan and also with the DITE agents.
** With the SOS-dan, she's the brains to Mikuru's beauty and Haruhi's brawn.
** With the DITE agents, she's the brains to [[spoiler:Emiri's beauty and Ryoko's brawn.]]
* BigEater: Or better said, ''fast'' eater. She doesn't consume very large meals, but those she gets to eat, she gulps them down ''fast''.
* BigFancyHouse: The huge sparse apartment in the anime is a downgrade from the three bedroom spread she has in the novels.
* BreakoutCharacter: She got her own SpinOff manga which takes place in an AlternateUniverse.
* CharacterDevelopment: Her development goes in the direction of emotions and individuality. In one of the later novels, she [[spoiler:refuses to synchronize with her self from a different time, in order to retain her individuality]]. She flat out ''says'' [[spoiler:"Because I don't want to."]] She also begins to treat the SOS-dan more akin to TrueCompanions, going from caring about Kyon in particular, to ''also'' caring about the rest of the members.
** Some of this may be due to Kyon becoming an expert Yuki watcher or projecting his feelings on what he sees from her. For example when he's feeling guilty about a date with Mikuru he sees Yuki as being colder than usual towards him.
%%** Aggresively averted in the spinoff. Her counterpart, who remains a static character the whole way through, the finale ensuring she doesn't develop.
* TheComicallySerious: See {{Understatement}} below.
* ConflictingLoyalty: Subverted. Yuki was created by the Data Overmind to observe Haruhi, but after a backup(Ryoko) influenced by another portion of the D.O. attempts to provoke Haruhi by killing Kyon, she not only stops it but switches her allegiance.
-->'''Kyon:''' Will another one like Asakura attack me?\\
'''Yuki:''' Don't worry. ''[beat]'' I won't let them.
* CovertPervert: Probably a byproduct of {{fanon}}, but still possible. Considering [[SuperPowerLottery the many ways]] she could have removed Mikuru's contact lenses in ''Sigh'', the one she chose was rather... [[LesYay suggestive]].
** That part had more with her having to remove the contact as fast as possible seeing as how [[spoiler: it was shooting deadly lasers at the time.]]
** There's also the incident in "Snow Mountain Syndrome" where each Brigade member encounters the apparition of another character who tries to seduce them. We later find out that Yuki sent the specters and the pairings are a coded message, which explains why, for example, Koizumi saw Kyon and Mikuru Haruhi. But that doesn't explain how the phantasms behaved.
* CreepyMonotone: Although... she's not creepy, especially when compared to [[UncannyValleyGirl Ryoko Asakura]]. Neither is the monotone, really. It's arguably part of the charm.
* DeusExitMachina: Kyon resolves to rely less on her. His wish is granted.
* TheDreaded: Both versions of Mikuru are ''terrified'' of her, and avoid interacting with her directly as much as possible. When forced to, even [[FutureBadass future Mikuru]] gets very quiet and withdrawn. It's implied that, unlike Kyon and Koizumi, Mikuru knows [[PhysicalGod exactly what Yuki is capable of]].
* DullSurprise: She ''is'' shown to be capable of emoting but cannot expresses them like how a normal human would, leading to this.
* EmotionlessGirl: Subverted, since she ''does'' have emotions, but was ill-equipped by her creator to actually express them. She's even aware of it herself, leading to some frustration and bitterness on her part that she ''still'' can't express. It can be quite pitiful.
* ExtremeDoormat: Starts out as this, changes significantly over the course of story.
* FirstNameBasis: Or rather, personal-pronoun-only basis toward Kyon.
* {{Foil}}: To Haruhi who is hotheaded and impulsive, while Yuki herself is calm and thoughtful.
** Also, to her counterpart in the Disappearance Arc.
** Her logical personality is a foil to the emotional Mikuru.
** Opposite of the bubbly and animated Ryoko who's actually a psychopath, while Yuki isn't deep down.
* FortuneTeller: Whose predictions are ludicrously specific and accurate.
* GamerChick: She's surprisingly more invested in the game "The Day of Sagittarius III" more than anyone else and turns out to be an absurdly competent player.
* TheGlassesGottaGo: When we are first introduced to her Yuki wears glasses. After her first fight with Ryoko Asakura to stop the latter from murdering Kyon, she loses her glasses and neglects to recreate them after restoring the classroom where the fight took place to how it was beforehand. Kyon quips that he doesn't really like glasses anyway, so she simply goes "I see" and doesn't bother with them from that point onward. It makes for a quick visual indicator of when we are in the story's timeline once time travel starts being a factor.
* GrewBeyondTheirProgramming: As a result of the time loop in “Endless Eight”, the accumulated experience breaks her out of her EmotionlessGirl existence, although indications are subtle up until ''Disappearance''. She still doesn’t actually ''emote'' all that much, but her interactions with the other members of the Brigade become more nuanced, and some of her actions are clearly based on ''selfish'' impulses separate from the wishes of her creators.
* HeroicRROD: [[spoiler:Appears to be dangerously close to one in the beginning of Book 10. She got better.]]
* {{Hikikomori}}: Sits in her room, in her high school uniform, for three years until finally attending that school.
* HilariousOuttakes: For the English dub: "I don't really have a glasses fetish." "What kind of a fetish do you have?"
* ICantBelieveAGuyLikeYouWouldNoticeMe: This is pretty much Alternate!Yuki's reaction to Kyon suddenly (from her viewpoint) taking ''any'' interest in her in ''Disappearance''.
* IJustWantToBeNormal: Kyon's interpretation of her motivation in ''The Disappearance of Haruhi Suzumiya''; Yuki being Yuki, whether she actually thinks this is left ambiguous.
* IllGirl: In stories set after the movie.
* InstantExpert: Of course.
* IWantMyBelovedToBeHappy: The ''fandom'''s interpretation of her motivation in ''The Disappearance of Haruhi Suzumiya'', she did give Kyon the Emergency Escape Program...
* LargeHam: Downplayed in ''The Adventures of Mikuru Asahina episode 00''. Keep in mind that Yuki's speeches usually come in two flavors: either brief response or {{Technobabble}}. While she's still monotonous in the movie, her lines would be very hammy were they spoken by anyone else. Whether this is HamAndCheese is up to interpretation.
-->"Please make your funeral arrangement for when next we meet it will be the last. Next time you may be certain that I will intend to take you down and destroy you without mercy".
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=sj3LxG7Y-hw "Nagato's Confession"]].
%%* MagicalGirl
* MagicFromTechnology: Yuki's powers are described as "magic" but basically come from post-mechanical technology overwriting local reality. As a bonus, her "incantations" are Microsoft SQL scripts sped up and backwards.
* MeaningfulName: Yuki's given name is obviously meant to evoke "snow", especially given her hinted-at backstory and ImageSong, but is written with the kanji for "hope".
* MentalTimeTravel: She is incapable of changing her "location" in time, but she can sync her memories from any point along the timeline.
* NerdsAreSexy: Yuki and her large fanbase ''within'' the story.
* NeverGetsDrunk: Yuki is shown to be capable of downing several glasses of wine without so much as a stagger.
* NighInvulnerability: She survives getting impaled with about seven spears and a lance made of energy, and all it really does is tire her out a little. It's not technically invulnerability since she still gets injured, but its implied she can heal from pretty much any injury by rewriting her own data.
* NoSocialSkills: She was created with a limited set of social skills though [[CharacterDevelopment she has improved to an extent]].
* NotSoAboveItAll: Even Yuki has moments where she gives into just blatant silliness such as wearing her fortune-telling costume when it's not required, buying cheap play masks to wear at a festival, insisting on wearing her party hat while in the clubroom in the lead-up to the Christmas Party, or choosing a silly nickname for herself when Kyon blackmails Haruhi with one.
* NotSoStoic: In the AlternateUniverse, where she smiled at Kyon. Even before that she's visibly scared by Kyon's actions when they first meet.
* PhysicalGod: We still gotta find out what Yuki ''can't'' do. We know she won't change weather because it might screw up the environment. On a geological scale of time.
** In ''Melancholy'', she claims that she will not travel through time. [[spoiler:She prefers cross-temporal synchronisation]]. However, it's unclear if this means that she permanently lacks the ability to travel in time, whether she's generally capable of doing so but unable or unwilling at that time, or whether she simply hasn't learned how to do it (given her remark that time travel is "not difficult"). In ''Disappearance'', Nagato says that [[spoiler:she cannot accompany Kyon and future Asahina back to December 18 because she must stay and guard their time-frozen past selves in her guest room]], and for all we know, this may be the only reason for her statement in ''Melancholy''.
** In the novels after ''Disappearance'', [[spoiler:Yuki reveals to Kyon that she has voluntarily had the Entity restrict her time-related powers, because synchronizing with her future self robbed her of the ability to freely choose her fate.]]
** More or less, it seems she self-imposes a limitation not to cause any significant harm and maintain the {{Masquerade}}.
** Let's not forget the fact that she's capable of [[spoiler:OUTRUNNING LASERS!]]
* PrescienceIsPredictable
* ProperTightsWithASkirt: In ''The Disappearance of Nagato Yuki-chan''.
* PurelyAestheticGlasses: Until she loses the glasses.
* TheQuietOne: She's not very talkative.
* RealityWarper: One that's more in control of her powers. [[spoiler: She can snatch Haruhi's powers, making ''Haruhi'' powerless, but herself pretty much a PhysicalGod. Since this is Haruhi we're talking about, it could be argued that the only reason Yuki could do something like that is because Haruhi, on some level, allowed it to happen (because she wanted it that way, because she was bored, because doing so would be interesting, etc etc etc).]]
* ReiAyanamiExpy: A young-looking alien girl and some sort of ArtificialHuman with short purplish blue hair, dark amber eyes and pale skin who starts out emotionless, but comes to gain emotions as part of her CharacterDevelopment. Her name even puns on Rei's name: Yuki is a homonym for "snow" in Japanese, while "Rei" can also mean "cold", and "Ayanami" and "Nagato" are the names of two WWII Japanese warships.
* RidiculouslyHumanRobot: Passes as human, but robotic in personality and role.
* RippleEffectProofMemory: She's the only one who can remember what happens after each loop during Endless Eight.
* RobeAndWizardHat: And we all know it looks damn awesome on her.
* ScaryShinyGlasses and/or StoicSpectacles: Until she loses them, and Kyon comments that he's not into the glasses fetish anyway.
-->'''Yuki:''' ''[deadpan]'' What is a glasses fetish?
* SchoolUniformsAreTheNewBlack: Very rarely does she wear anything else (a notable exception is "Remote Island Syndrome").
* SecretKeeper:
** In "The Melancholy of Mikuru Asahina", she [[spoiler:helps Haruhi plot to give the boys Valentine's chocolates.]]
** In "Surprise," Kyon is shocked that Yuki refuses to give him a key piece of information about Yasumi (though she does confirm she's not a threat). She only insists that positive outcomes are more likely if Kyon remains ignorant. [[spoiler:She knew that Yasumi was Haruhi, and that Kyon would likely derail the plan if he was aware of it.]]
* ShorterMeansSmarter: She's the shortest member of the SOS Brigade and is arguably the smartest
* ShrinkingViolet:
** Only in the AlternateUniverse.
** Main sequence Yuki is always TheQuietOne and a bit of a {{Hikikomori}}. Has she actually said anything to the convenience store clerk?
* ShroudedInMyth: Her class treats her this way. Apparently, they firmly believe that if she says ''anything'' on any given day, something important will happen, for good or ill. This was before the school festival and her ridiculously accurate "fortunes."
* SilentBob: And I quote: "[[VisibleSilence . . .]]"
* TheSingularity: See MagicFromTechnology above. This actually makes her love for Scifi books an interesting quirk.
* TheSmartGirl: Haruhi's perception. Actually TheBigGirl, when you get down to it because of her controllable RealityWarper powers.
* SpinOff: Has an AlternateContinuity {{manga}} based on her called ''Manga/TheDisappearanceOfNagatoYukiChan'', roughly based on the ''Disappearance of Haruhi'' arc, if there weren't any interference.
%%* TheSpock
%%* SpockSpeak
%%* {{Squee}}: The 4th novel ''Disappearance''.
%%* TheStoic
%%* SufficientlyAdvancedAlien
* SugarAndIcePersonality: Although she comes across as emotionless, she is actually a kind and caring girl.
* SuperpowerLottery: Yuki's supernatural abilities are vastly more useful than Itsuki's (only useful in Closed Space) or Mikuru's (largely nonexistent). Kyon realizes at a few points that he's relying too much on Yuki to keep up the {{Masquerade}}, and resolves to ease up on her.
* SupernaturalGoldEyes: She has amber eyes, which hints at the fact she is an alien.
* SuperSpeed: She can move ''really'' quickly when she needs to. Probably the crowning example being when she [[spoiler:apparently blocked the lasers Mikuru was inadvertently shooting out of her eye. Any attempt at blocking the lasers would have required reflexes that are ''faster than the speed of light''.]]
%%* {{Technobabble}}
%%* TechnoWizard
* TimeLoopFatigue: [[spoiler:During the "Endless Eight" arc, she is forced to relive the same 2 weeks for approximately '''595 YEARS''' and she's the only one in SOS Brigade who remembers ''all of it''. Even though Nagato is the epitome of EmotionlessGirl, her exhaustion, stress, and sadness are way too easy to see. The resulting trauma is so serious that it eventually makes her steal Haruhi's powers and create an AlternateUniverse where everyone is normal and Haruhi is PutOnABus.]]
* TokenNonHuman: She's the only member of SOS Brigade who is an alien and artificially created.
* TrueCompanions: It is made obvious several times that she will ''not'' stay neutral when the Brigade members are in danger, even though her task is to simply observe.
* {{Understatement}}: Nagato's [[SilentBob laconic nature]], [[TheStoic lack of affect]] when she ''does'' speak, and way of explaining things in [[SpockSpeak overly technical terms]], can make even the most earth-shattering pronouncements seem rather trivial. This occasionally seems to mask a depth of feeling not present on the surface: after determining that [[spoiler: Kyon's old friend Nakagawa fell for her based on a misunderstanding]], she says it was "a little bit" disappointing. Coming from ''her'', this could easily be the equivalent of "devastated".
* TheUriahGambit: The Data Overmind can't ''directly'' retaliate at Nagato for ''Disappearance'' due to [[spoiler:Kyon. It can, however, elect her to be the "Ambassador" to the Canopy Domain, exposing her existence and sanity to something which is as alien to her as the Data Overmind is to humans. A lesser being would GoMadFromTheRevelation. Fortunately, if this ever ends in something seriously bad for Yuki, Kyon ''will'' retaliate, so the only thing they can really do is torture her, not eliminate her completely. At the end of ''Surprise'', she says she has been taken off the job of trying to contact the Canopy Domain and that a different interface will take over future attempts to contact the Canopy Domain, who Yuki believes would do the job much better than her; Yuki's job now is to merely observe the Canopy Domain's interface in addition to Haruhi.]]
* WhenSheSmiles: After ''Disappearance'', [[spoiler:Kyon chose the original world over the one Yuki made for him]] but admits in Intrigues that he still has small lingering doubts about his choice. [[spoiler:Wanting to see Yuki's smile again]] is part of the reason.
* TheWorfEffect: The threat posed by the [[spoiler:Sky Canopy Domain]] is illustrated by how quickly they can put poor Yuki out of commission. [[spoiler:Twice.]]

[[folder:Mikuru Asahina]]
[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/mikuru_asahina.png]]
->'''Voiced by''': Creator/YukoGoto (JP), Creator/StephanieSheh (EN)

-> ''"That's classified information."''

Painfully shy, walked-upon, and adorable, Mikuru Asahina doesn't seem to serve much purpose on the show other than {{Fanservice}}, a rival LoveInterest for Kyon (and the one he actually ''expresses'' interest in), and being the much-abused subject of Haruhi's [[SkinshipGrope "admiration"]]. However, like the other characters, Mikuru has her own secret: she is a {{Time Travel}}er from an unspecified date in TheFuture, sent to study Haruhi like Itsuki and Yuki, since Haruhi is the source of a temporal disturbance [[ArcWords Three Years Ago]] that prevents time travel to any previous period.

Mikuru is, as far as the audience can tell, the least diligent in the whole "observe/control" Haruhi business. Indeed, she seems content to be the SOS Brigade's personal {{Meido}} (having an especial fascination with tea-brewing for some reason), deal with 21st-century culture shock, and endure Haruhi's [[BlackComedyRape constant molestation]] and enforced {{Cosplay}}. It's not that she's around [[MsFanservice solely for window-dressing]]. It's just that she's passive to the point of being TheChewToy. (And partly around for window-dressing).

* AgeInsecurity: She insists that her real age is "classified information".
* AmbiguouslyBi: She clearly likes Kyon, but also is rather responsive to Haruhi. In the novels, she appears to be smitten with Yasumi as well.
* AntiHero: [[AlternateCharacterInterpretation May or may not]] [[ObfuscatingStupidity have her moments]]. Koizumi definitely originally thought she was faking her "moe" tendencies to manipulate Kyon.
* AwLookTheyReallyDoLoveEachOther: There are some moments where we see that, despite all the grief she causes her, Mikuru does care for Haruhi as a friend, and vice-versa.
* BadBadActing: As evidenced in ''The Adventures of Mikuru Asahina'' she's very stiff and awkward.
* ButtMonkey: Often due to Haruhi's antics.
* BuxomIsBetter:
-->'''Kyon:''' So, you brought this girl, Ms. Asahina, up here just because she happens to be cute, tiny and extremely well endowed?\\
'''Haruhi:''' That's right.
* BrainlessBeauty: She's ''really'' not very smart.
* CatchPhrase: "That's classified (information)", whenever she's asked about details related to her mission or the future that she can't reveal.
* CelibateHeroine: While none of the characters are currently dating anyone, Mikuru isn't allowed to get involved with anyone out of her timeframe. However, she does seem to have a [[LesYay strange interest]] in Yuki in the 7th book. And is too embarrassed to look at Haruhi in a cheongsam later on.
* TheChewToy: She eventually ends up being Haruhi's [[https://static.tvtropes.org/pmwiki/pub/images/haruhi2.jpg literal chew toy]]. In the opening, she cries as Haruhi forces her to be a cheerleader. She can go either way in TheWoobie Vs. TheChewToy debate, depending on how sadistic the viewer is feeling at any given time, or how serious Haruhi's abuse of the moment is.
* TheChick: Fights the least and symbolizes feminity in the Brigade. Good at being a stereotypical maid.
* {{Cosplay}}: Against her will.
* CurvesInAllTheRightPlaces: In the light novels, Kyon describes her this way the first time he sees her wearing the bunny girl costume.
* CuteClumsyGirl: At times Haruhi expects her to act like this when serving as the SOS-dan's {{Meido}}.
* CutenessProximity: While petting Shamisen in "Where Did The Cat Go?" (''Disturbance''), she says to herself, "Kitty, kitty, um… Kitty, calico, mew… Umm~ umm, little kitty eat cat food."
* TheCutie: An adorably pretty girl with a timid personality.
* DefiledForever: Mikuru worries that Haruhi's treatment may leave her ruined for marriage.
* DemotedToExtra: From novel 10 on, she is mostly relegated to the role of serving tea while wearing her maid outfit.
* DistinguishingMark: Her mole.
* EvenTheGirlsWantHer:
** Haruhi in particular seems to quite "like" Mikuru.
** In ''Intrigues'', Haruhi puts her in a shrine maiden outfit and auctions off some of her tea for a contest, attracting half the population of the school--the male half. However, in the end, a very embarrassed first-year girl wins.
* EyeBeams: Only due to colored contact lenses that Haruhi obliviously modifies in ''Sigh'', though. They're rather interesting eye beams, too--there are the standard lasers as well as RazorFloss, enormous metal spikes, and miniature ''black holes''.
* ExtremeDoormat: Part of her submissive {{Moe}} character. She just cries when she's being harassed by Haruhi. Plus there's evidence that if Mikuru ''wasn't'' an extreme doormat, Haruhi would ''make'' [[RealityWarper her one]]. Future-Mikuru, on the other hand...
* {{Fainting}}: Emotional Faint, when Keiichi is found dead in ''Remote Island Syndrome II''. Later she has a Monster Faint. The monster in this case is herself.
* FauxActionGirl:
** Parodied.
--->'''Kyon:''' Don't you have a laser beam or something?\\
'''Mikuru:''' No, carrying weapons is forbidden!
** And later ''{{Subverted|Trope}}''. [[spoiler:The reason she has to be in the past is to protect and inspire the inventor of time travel, who is currently a primary school kid living near Haruhi. Mikuru indirectly and unknowingly is responsible for saving his life.]]
* FeminineWomenCanCook: Perfect maid and good cook who is a girly girl.
* FemmeFatale: At least Itsuki suggests this to Kyon.
* {{Fetish}}: Haruhi wants to make her as 'fetishy' as possible.
* FireForgedFriends: With Koizumi, from book 7 onwards. Though they initially distrust each other, they form an odd alliance in which Koizumi is the first person Mikuru contacts in Endless Eight and he helps rescue her when she is kidnapped in the seventh volume.
* FishOutOfTemporalWater: Mikuru Asahina is from a future that has passed TheSingularity. While she's not allowed to talk about it, she has absolutely no understanding of modern technology more complicated than a teapot. Not only does she consistently fail to make any type of machine operate, but she doesn't even know how boats work, leading Kyon to assume that the future has moved past buoyancy.
* FutureMeScaresMe:
** Averted insofar as Mikuru doesn't know that her boss is her future self. However, Koizumi is highly suspicious of the future Mikuru and by the end of ''Scheme'' Kyon's starting to agree.
** Koizumi re-iterates this in the 11th book, telling future Mikuru to her face that he considers ''present-day Mikuru'' a friend, but he's not so sure about her.
* {{Gainaxing}}: She displays this particularly in the opening credits.
-->'''Kyon''': ''Too many beach balls!''
** It's even {{lampshade|Hanging}}d in a Season 2 dub [[HilariousOuttakes outtake]]: "Look at these things, they move ''independently'' of each other!"
* GaussianGirl: Mikuru in a Yukata from Kyon's POV.
* GirlyGirl: Compared to all the other female characters, she is the girliest.
* GirlyRun: She runs like this in the season 2 intro song.
* HeroicBSOD: She starts crying constantly and can barely speak after finding out what's happening in Endless Eight.
* HiddenDepths: It may surprise you that she has an ImageSong [[https://www.youtube.com/watch?v=zmR1OSIhM8g about being bitter]] and wanting to get revenge upon all those who have used her as a tool.
** In the 5th novel, she sharply tells off Kyon for taking Yuki for granted after Kyon calls Yuki for help on an adventure without briefing her to the circumstances and forces Kyon to apologize to Yuki. (This is FridgeBrilliance when we learn in the 6th novel that Asahina hates it when her superiors give her orders without telling her what's going on. See [[LockedOutOfTheLoop Locked Out of the Loop]] below.
** Disappearance-universe Asahina has no problem punching Kyon in the face when he talks about her star-shaped mole. ItMakesSenseInContext.
* ImplausibleHairColor: She has red hair, which does exist naturally in Japan, but is unspeakably rare. Might be a symptom of being from the future, where Japan is likely more multicultural.
* InformedAttractiveness: She's the MsFanservice of the series, but she isn't any more attractive than other female characters in terms of design aside from [[BuxomIsBetter her larger bust size]]. While Kyon frequently notes her good looks and tends to put her on a pedestal, [[UnreliableNarrator his narration is often colored by his own opinions]].
* IntimateMarks: She has a star-shaped mole on her right breast.
* LightFeminineAndDarkFeminine: Light Feminine to her future self's Dark Feminine. She's a girly girl while her future self isn't as pure, but more badass.
* TheLoad: When Kyon isn't carrying her unconscious body around, she's likely to be clinging to him to prevent his escape from the battlefield.
* LockedOutOfTheLoop:
** She suffers a HeroicBSOD in Volume 6 because her superiors are always giving her orders [[InMysteriousWays without explaining their purpose]].
*** She's also the only one in the SOS Brigade (except Haruhi) who isn't aware that her boss is her mature self.
** Tends to be the case with the SOS Brigade too: most of their talks about battle plans, philosophy, and metaphysics tend to exclude her, only involving Kyon, Nagato, and Koizumi.
** {{Justified|Trope}} in Volume 7: Kyon and others can't let Mikuru become aware of "Michiru", because "Michiru" wasn't aware of her being present when she was Mikuru.
* LovesSecrecy: Sometimes tends to say "classified information" in a playful way.
* MeaningfulName: Assuming the most obvious choice of Kanji for her name, it could alternatively be read as "''mirai''", meaning "future".
** Alternatively, it could be a play on "''Mi''" as in "see", and "''kuru''" as in "come". Meaning she sees what's coming.
* {{Meido}}: Perhaps oddly for a time-traveling secret agent, she seems to enjoy playing this role.
* {{Moe}}: {{Invoked}} to the point of absurdity by Haruhi, who recruited her specifically because her cute looks and timid personality have a lot of moe appeal.
* MsFanservice: She was "recruited" (as in, [[PlayedForLaughs literally dragged kicking and screaming]]) into the SOS Brigade by Haruhi [[InvokedTrope specifically to fit this role]] with Haruhi that force her to wear sexy outfits (and Kyon not dislike). Future Mikuru fits this trope better, though. Each novel volume has a picture of her in costume before the prologue.
* NeutralFemale: SOS Brigade Mikuru that is.
* NiceGirl: She's usually a very innocent and kind girl.
* ObfuscatingStupidity: It's hinted that Mikuru is less of a 100% doormat than she looks like, pretending to be super ultra submissive in order to hide her true identity.
* OlderThanTheyLook: Despite being the oldest member of the SOS Brigade, she can be mistaken to be a junior high school student. For some reason, the English dub has her as Haruhi and Kyon's ''underclassman'' instead of being their upperclassman although the same episode also states that they are freshmen of the school.
* PlayboyBunny: The ''other'' Bunny Girl when Haruhi promotes the SOS Club. Compared to Haruhi, who wears her suit with absolute glee and is ''really'' enjoying the way she looks in it, Mikuru just... feels like she's forced to do it for a payday, regarding her reluctance about fanservice. And she kinda is considering Haruhi's overall weird ways of having fun.
* PomPomGirl: When Haruhi forces her to be a cheerleader. She is seen with this outfit also in the anime opening.
* ProneToTears: Takes this to satirical lengths. Whenever Haruhi does anything vaguely harassing, she bursts into tears.
* ProperTightsWithASkirt: Mikuru's the closest the SOS Brigade has to a ProperLady, and guess who wears tights with her uniform during the winter months?
* PinkMeansFeminine: Wore pink kimono and the only one who wore a pink uniform, representing her as a girly girl, when battling the Computer Club President.
* ReluctantFanserviceGirl: Haruhi is constantly trying to invoke tropes, and uses Mikuru for her [[{{moe}} appeal]] and tries to make her the InnocentFanserviceGirl, much to Mikuru's despair. While she eventually accepts her {{Meido}} outfit, she is still struggling to accept it when Haruhi tries to put more revealing outfits on her.
* ShrinkingViolet: Mikuru also has shades of this, as part of her {{Moe}} appeal.
* TheSingularity: ''Why'' Mikuru doesn't know how anything in the 21st century works - future society surpassed mechanical technology long ago.
* SparklingStreamOfTears: In opening credits. At least she has a reason, given what she's subjected to by Haruhi.
* TeamPet: How Haruhi sees her: the club's moe mascot.
* TomboyAndGirlyGirl: Girly Girl to all the other females, except Ryoko.
* {{Transhuman}}: Her TPDD and her means of contacting the future are apparently embedded into her brain. [[TheSingularity It's presently unknown what else might be]].
* UndyingLoyalty: As Koizumi points out in the 11th book, whatever future Mikuru is like or feels on the matter, ''present'' Mikuru is unquestionably a loyal friend.
* VagueAge: Mikuru's denials of telling Kyon her age implies that she is not ''really'' high school age (by our standards). She has the face of a little girl and the breasts of a much older woman so it's difficult to tell.
* YamatoNadeshiko: Her kind, nurturing, and being a proper maid fits most of the traits.

[[folder:Itsuki Koizumi]]
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/itsuki_koizumi.png]]
->'''Voiced by''': Creator/DaisukeOno (JP), Creator/JohnnyYongBosch (EN)

->"Relax! I don't believe in the existence of an Almighty God, or the Ultimate Creator that created humans. Many of my companions think the same way as well. Yet, there's one thing that bothers us."\\
Bothered by what?\\
"The things that we do. Are they as foolish as a clown doing a handstand by the edge of a cliff?"
-->-- ''LightNovel/HaruhiSuzumiya'' (volume 1)

Itsuki Koizumi. NewTransferStudent. [[ThePhilosopher Prodigious talker]]. Perpetual annoyance to Kyon, and toady to Haruhi. Also the wielder of (rather specialized) PsychicPowers and representative of a shadowy conspiracy of similarly-empowered people, who credit Haruhi as the source of their abilities. Like Yuki and Mikuru, he's here to observe Haruhi and, more so, keep her under control; he knows from regular experience the highly destructive nature of Haruhi's teen angst, and his "Agency" is tasked with keeping it under control.

Itsuki is the most active in interacting with Haruhi, usually actively finding ways to keep her occupied and feeling good via thorough ass-kissing. Aside from that, he greatly enjoys [[ContemplateOurNavels Contemplating His Navel]], spouting ExpoSpeak, and playing a variety of board games (poorly), all but the last of which annoy Kyon immensely. In his spare time, he beats up {{Kaiju}} [[TheHeartless manifestations of Haruhi's irritability]] in Closed Space, a sort of PhantomZone.
--------
Tropes associated with Itsuki:
* AlternativeCharacterInterpretation: Oh, so much. That he keeps his own emotions hidden behind [[StepfordSmiler a plastered smile]] makes him the one character in the series almost no one in the fandom agrees on.
** There's even a bit of this in-universe with Mikuru distrusting his motivations originally, Koizumi swearing loyalty to the brigade, and Kyon being simultaneously annoyed by and trusting of him. Koizumi himself all but confirms his personality is an act, but even then he might have been lying...
* AmbiguouslyBi: His interactions with Kyon tend towards this, though he tells Kyon that he acts that way because it's how Haruhi expects him to. [[RuleOfFunny Doesn't stop the]] HoYay... which seems to be carried out when Haruhi ''isn't'' around or paying any attention, though. On the other hand, he tells Kyon in the fourth novel that he is in love with Haruhi. Given that this took place in an alternate universe, it may or may not be the case in the main reality.
* AntiHero: Appears to be of the PragmaticHero type at first -- not afraid to lie, cheat, or scheme to keep Haruhi from re-writing the world. By later books, while he has become [[BecomingTheMask genuinely attached]] to the SOS Brigade, his love for his friends manifests in [[spoiler: a willingness to kill to protect Kyon and Haruhi]] and yet [[spoiler:he also lies to them on a regular basis]].
* AuthorityEqualsAsskicking: [[spoiler:In a sense; when we were shown him fighting the Celestials, he seemed to be the most competent esper, and if the recent revelation about him, as well as [[KilledOffForReal how he dealt with Fujiwara in combat]], are anything to go by...]]
* BadassBookworm: He is in North High's top class. The badass part? See [[spoiler:AuthorityEqualsAsskicking]].
* BadBadActing: an odd example. He's very stiff and lifeless in the Brigade's film, but he seemed to be doing much better in the play his class put on not long after. Then again, he's much better suited to [[CloudCuckoolander the character he's playing]] in the play (Guildenstern from ''Theatre/RosencrantzAndGuildensternAreDead'').
* BecomingTheMask: Whether or not he intended to genuinely care for the other brigade members, by "Snowy Mountain Syndrome," he has become genuinely [[TrueCompanions loyal to and protective of]] his friends and the later novels give him opportunities to prove it.
* BeleagueredAssistant: Despite his apparent enthusiasm toward Haruhi's actions, he makes clear that the fact that he has to take care of the closed spaces (although their appearances become less frequent in the later novels) put him under a lot of stress, especially in the ninth novel.
* BewareTheNiceOnes: [[spoiler:He fights and apparently ''kills'' Fujiwara in the 11th book. And he does it with a smile.]]
-->[[spoiler:"I shall take care of that." A large, shiny, volleyball-like orb of red floated above the palm of Koizumi's right hand. "Now I feel like I'm becoming the protagonist of an esper manga. I've waited a long time for this, so please let me play an active role in this ending. This may be the last chance I'll have to fulfill my dream."]]\\
[[spoiler: He was saying this quite happily, but I think anger would be more fitting for his emotions.]]
* BigDamnHeroes: Note to Itsuki: It spoils the effect when you walk in smiling and give a jaunty wave at the guy you're going to rescue.
* {{Bishonen}}
-->'''Kyon''': Was it a guy, or a [[{{Bifauxnen}} girl]]?\\
'''Haruhi''': Could've been [[SweetPollyOliver disguised]], but for now he looked male.
* CallingYourAttacks: In the Cave Cricket fight. His attack names are {{Shout Out}}s to the ''LightNovel/FullMetalPanic!'' series produced by Creator/KyotoAnimation.
* CharacterFilibuster: Koizumi frequently (ab)uses his role as MrExposition as an excuse to fire off [[ContemplateOurNavels seemingly interminable dissertations]] about physics, philosophy, psychology and whatever other topic he can come up with that facilitates longwinded rants about abstract matters. He invariably ends these with some variation of IWasJustJoking to make absolutely certain that ''no concrete point whatsoever'' is ever made of these rants. Kyon, and most of the audience, are left with the impression that he just likes doing this ForTheLulz.
* ChekhovsGun: In the end of the Snow Mountain Syndrome, he said that he would [[spoiler:betray the Organization exactly once]] to aid Kyon. We'll have to see when that comes to play.
* TheChessmaster: [[spoiler:He's the leader of [[OrganizationIndex The Organization]]. That should tell enough]].
* CloudCuckooLander: It's more obvious in the novels, but Koizumi is more than a bit...odd. Kyon and Taniguchi separately note (Kyon silently) that Koizumi is "weird" and Kyon notes everyone in the SOS Brigade is fairly socially awkward (without singling Koizumi out). The long rambling tangents into everything from orchid species to Hegel doesn't help.
* ContemplateOurNavels: He's very philosophical when talking about Haruhi.
* DeadpanSnarker: Shows hint of being one in volume 8 and onwards.
* DepartmentOfRedundancyDepartment: In the English dub he calls his situation in Endless Eight a "Never ending, endless summer."
* DissonantSerenity: Seemed fairly cheerful when informing Kyon of the situation during their time Haruhi's [[EndOfTheWorldSpecial world-ending]] Closed Space in Volume 1. Even moreso in Volume 11, while confronting [[spoiler:Fujiwara]]. Kyon even notes that Koizumi's still smiling when he's [[spoiler:threatening Fujiwara]], and thinks that a look of anger would be more fitting...
* ExtremeDoormat: Although he has plans of his own, he objects Haruhi's commands.[[spoiler:Subverted in that he continuously goes behind Haruhi's back and pulls the strings. However it is rare for him to confront her to her face -- though he does take Kyon's side in a few of Kyon and Haruhi's arguments]].
* EyesAlwaysShut: [[ZigZaggedTrope Zig-Zagged]]. The illustrations of the novels are fairly consistent with this, but the AnimatedAdaptation itself keeps them open just as if not more often, at least while he is speaking or doing other than standing around.
* FireForgedFriends: With Asahina and Kyon. With Asahina, the two did not trust each other at first, but formed an odd "alliance" and became friends after Koizumi and his Organization helped rescue her in the 7th novel. Kyon initially disliked Koizumi but by later books came to genuinely consider him a friend in a VitriolicBestBuds way.
* FriendlessBackground: Canon in the "Disappearance of Yuki-chan" spin-off, but implied in novel 8 that he has never had a close group of friends before the Brigade.
* TheGadfly: Seems to enjoy [[ContemplateOurNavels confusing Kyon]] and then [[IWasJustJoking annoying him]] by retracting the statement way too much. Also one explanation for his constant HoYay. Considering his strongly implied attraction to Haruhi, it could be his way of getting back at Kyon for his distant attitude towards her.
%%* GratuitousEnglish
* GuileHero: Even though he does let Kyon handle most things, he is, by all rights, [[spoiler: the leader of the Organization, if you believe Tachibana]].
* HeroOfAnotherStory: Literally in the spin-off manga "The Intrigues of Itsuki Koizumi," but even in series it's implied that his double life as an esper is much more complicated than we get to see [[spoiler: and if he is indeed the leader of the Organization, then there was either an off-screen coup or a more convoluted scheme than Kyon and the audience were lead to believe]].
* HiddenDepths: He has a much darker, even violent side that manifests [[spoiler:when he literally kills or attempts to kill Fujiwara in order to protect Haruhi]]. On the reverse side, while Kyon initially assumes Koizumi is a pretentious suck-up, post-Disappearance it seems that Koizumi is a genuinely kind person who tends to try to believe the best of people (as seen with his interactions with Tachibana and the student council president, amongst others).
* HomoeroticSubtext: It makes Kyon pretty uncomfortable.
--> '''Koizumi:''' ''[to Kyon]'' You appeared in my room as well. The appearance might have been you, but the behaviour was just terrifying... anyway, you did things that you wouldn't do.
* HypercompetentSidekick: As Vice-President of the SOS Brigade, he is able to use his "connections" to pull together elaborate scenarios to keep Haruhi entertained.
* ImprobableAge: If Kyoko's words in Volumes 10 and 11 are anything to go by, he is [[spoiler: [[KingIncognito the founder and the leader of the Agency]]. He would have been approximately ''twelve'' when he first created it]].
* IWantMyBelovedToBeHappy: For both beloveds, if you believe that he secretly loves Haruhi, and he does tries to 'give' Kyon love advice. Or, he could be a ShipperOnDeck for [=KyonxHaruhi=] if you don't believe the theory about his secret crush for Haruhi or his HoYay with Kyon.
* IWasJustJoking: At least once, after another philosophical monologue.
** Many of his statements to Kyon end with his (nearly signature) 'Ah, sorry, that was a joke'. He stops tacking this onto his persistent hints that he has a thing for Haruhi by ''Disappearance''.
* JerkWithAHeartofGold: He's not exactly a jerk except insofar as he is polite to the point of being obnoxious, passive-aggressive, and occasionally callous to the cost of Haruhi's happiness, most notably in his initial apparent indifference to Mikuru's humiliation. Ultimately a loyal friend, as even [[VitriolicBestBuds Kyon]] comes to acknowledge.
%%* {{Keigo}}:To an exaggerated extent.
* MirrorCharacter: With Kyon. Both are low-key weird and socially awkward despite attempting to appear cool and unflappable at all times, to varying degrees of success. Both tend to keep their true feelings to themselves, but genuinely care about the Brigade. They also develop a habit of "riffing" off one another on subjects from [[StrangeMindsThinkAlike orchid species to Hegel to other randomness]] and have learned to communicate by body language. Still totally VitriolicBestBuds, though.
* MrExposition: A trait that he seems at least aware of enough to [[SelfParody make fun of]] during the School Festival. Or he could have just been doing what he does best (Ramble on forever and confuse the audience). Worth noting that his dialogue in the class play is actually ''an abridgement'' of [[Theatre/RosencrantzAndGuildensternAreDead the source material]]; the simple fact that he was cast in that role [[LampshadeHanging Lampshades]] the hell out of this trope.
* MrFanservice: Shirtless in Endless Eight.
* NewTransferStudent: Haruhi wanted a 'mysterious transfer student.'
* NoSenseOfPersonalSpace: The source of most of his HoYay.
* NotSoSimilar: Kyon notes that Sasaki reminds him strongly of Koizumi, but Koizumi insists they are only alike on surface but actually quite different. Sasaki is a pragmatist and empiricist who is skeptical of the supernatural [[spoiler:even after she is revealed to be a RealityWarper]]. Koizumi is the one character with the deepest belief in the powers of reality warpers like Haruhi and holds beliefs that are ascientific and fantastical by Asahina's standards.
* NumberTwo: In the Brigade rankings.
* PerpetualSmiler: He's almost constantly smiling, something which tends to get on Kyon's nerves.
* ThePhilosopher: Calm and wise.
* ScrewTheRulesIHaveConnections: Taken to near damn omnipotent level; he has so many connections that he can pretty much do anything that doesn't involve supernatural phenomena.
* SensitiveGuyAndManlyMan: Sensitive Guy to Kyon's Manly Man. This gets played with; he may be AmbiguouslyGay and appear to be easygoing, but he has a hidden badass side that comes out whenever any of his friends, be they [=ESPers=] or SOS Brigadiers, are threatened.
* ShipTease: A bit of it with [[spoiler:Kyoko Tachibana]] at the end of the eleventh novel.
* SmartPeoplePlayChess: ...only he's ''really bad'' at it.
* SpotTheImposter: He notes that as he's basically a tool of Haruhi's subconscious, he can easily identify her in any situation. [[spoiler:Unfortunately, the reason this comes up is because Kuyoh is trying to kill someone who appears to be Haruhi--and Koizumi confirms that yes, it is her]].
%%* StepfordSmiler
* TeenGenius: He's involved with an organization that is more or less omnipotent in human terms. [[spoiler:And according to Kyoko Tachibana, he's the head of it.]]
* TouchedByVorlons: The vorlon in this case as she gave him his powers.
%%* TricksterMentor
* TrueCompanions: He declares that he would choose the SOS Brigade over the Agency, effectively betraying them HeelFaceTurn style, should they turn out to be opposing to the Brigade.
* VitriolicBestBuds: With Kyon. He annoys Kyon most of the time, and occasionally gets back at Kyon for Kyon's obtuseness and neglect of Haruhi in his own passive aggressive way. But Kyon spends more time with him than any other member of the brigade and grows to trust him. And, when it comes down to it, Koizumi would side with Kyon over the Organization should it ever come to that. [[AlternateCharacterInterpretation So he says]].
* YesMan: He agrees with basically everything Haruhi suggests.
[[/folder]]

!!Secondary Characters

[[folder:Ryoko Asakura]]
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/ryouko_asakura.png]]
->'''Voiced by''': Creator/NatsukoKuwatani (JP), Creator/BridgetHoffman (EN)

Ryoko Asakura is the ClassRepresentative of Kyon's class. She's described as a model student -- hardworking, beautiful and smart, until she gets revealed as another alien data interface, the same as Yuki. She's gotten tired of sitting around and observing until Haruhi acts, and so she decides to act... by stabbing Kyon and seeing how Haruhi will react. Kyon is saved by Yuki, who then proceeds to shut down Ryoko. This convinces Kyon that Yuki is an actual alien.

In the AlternateUniverse stemming from ''Disappearance'', she is a normal student and still the ClassRepresentative of Kyon's class.

Interestingly, she has a [[EvilTwin good twin]] in ''Manga/TheDisappearanceOfNagatoYukiChan''; a dimension where she ''is'' Yuki's best friend and genuinely tries to help her be with Kyon. Although she is just a little bit jealous ([[LesYay of Kyon]]), she tries to hide that.

* BigOlEyebrows: Among the largest of the cast, male and female.
* BitchInSheepsClothing: It can kind of be argued either way; on the one hand, when dealing with the vast majority of people, she seems to be legitimately, actually nice and to even enjoy it, doubly so in ''Disapperance's'' AlternateUniverse and its related spinoff (which, given the nature of TheVerse, [[MindScrew may or may not count, depending]]). Her interactions with Kyon, however, run the gamut; she starts out nice, then there's the big stabbing incident, then a lot of her lines with him in ''Disapperance'' straddle the line between "good-natured ribbing about Yuki" and "passive-aggressive bitchiness", [[spoiler:then she stabs him ''for real'']], and '''then''' [[spoiler:in Book 10, she saves his life ''while holding a knife to his throat at the same time'']]. Perhaps it's most accurate to say that if she has an Inner Bitch, Kyon brings it out, and since [[UnreliableNarrator he's our narrator]], we may get a disproportionate view of it. Granted, [[spoiler:she also seems to bitch out Kimidori a bit, but by Book 10 she has nearly as much of a legitimate axe to grind with the Data Overmind as Yuki does at this point, so it comes across as less "self-righteous bitchiness" and more "you really don't have any room to tell me what I should and shouldn't be, Nagato understands that".]]
%%* BoxedCrook: [[spoiler:In the 10th novel, ''Surprise'', but she can only appear in certain circumstances.]]
%% -->'''Ryoko''': [[spoiler:I'm afraid it's about time for my temporary deployment to come to an end. Call me again any time. I'll be ready and waiting. As long as Little Miss Scary over there doesn't step in to intervene, of course.]]
* ClassRep: Popular and the class president.
* CombatTentacles: Those glowing appendages she forms are described as such at least by Kyon.
%%* CurtainsMatchTheWindow
* CuteAndPsycho: She smiles happily while trying to stab a guy to death. [[spoiler:Even after coming back from Yuki's deletion. Her kernel must be built around stabbing people or something.]]
* TheDreaded: She is easily the person who scares Kyon the most, due in no small part to being the only character who tried to kill him specifically (and came pretty damn close, too). ''Disappearance'' does an excellent job of underlying just how pants-wettingly '''terrified''' he is when she walks through the door.
* EvilCounterpart: To Yuki: in ''Disappearance'', Kyon outright calls her Yuki's "shadow" [[spoiler:after Asakura stabs him, and in the 10th novel, she even claims that she'll exist so long as Yuki does.]]
* EvilerThanThou:
** [[spoiler:Kuyo Suo of "the Anti-SOS Brigade" is even ''more'' deranged than Ryoko.]]
** [[spoiler:Also, her human counterpart from "Disappearance" is much worse than normal Ryoko. Normal Ryoko's attempt to kill Kyon was motivated out of psychotic pragmatism and there was no real malice behind it. The alternate Ryoko, on the other hand, was motivated by emotional spite, and she came much closer to killing him than normal Ryoko did.]]
* FauxAffablyEvil: Admittedly she's more BlueAndOrangeMorality than [[CardCarryingVillain out-and-out evil]], but certainly her cheerful personality is only skin-deep.
* FlirtyVoicePloy: Ryoko uses a flirty tone when asking Kyon to be the go between for Haruhi and the class.
--> '''Ryoko: '''Pretty please.
* GirlWithPsychoWeapon: Truly insane and dangerous weapons.
* GirlyBruiser: She's a bubbly girly girl who is a very skillful fighter and almost killed Kyon.
* GirlyGirlWithATomboyStreak: She's very girly, being a Valley Girl in her school, but she also fights and isn't fazed with blood.
* GoKartingWithBowser: When she isn't stabbing people, she's legitimately kind, empathic and helpful (even if she rags on Kyon sometimes). Kyon even sits down to an extended dinner with her in ''Disappearance'' (partially at Yuki's insistence), and rather manages to enjoy himself despite his paranoia about being knifed out of the blue. The fact that she appears in ''Disappearance'' at all is telling. [[spoiler:Yuki temporarily stole Haruhi's [[RealityWarper Reality Warping]] powers, which means that she very easily could have fabricated a universe where Ryoko didn't exist at all; in fact, she would ''have'' to know how negatively Kyon views her, and this was all done for his sake. That Yuki brought Ryoko back ''regardless'' really suggests that Yuki must see ''something'' redeeming in her.]]
* GracefulLoser: At her final moments while shutting down, she smiles and tells Kyon to enjoy life with Haruhi.
* HimeCut: Straight hair with two sidelocks and somewhat even bangs. She likely added this to her Inferface's appearance to give herself a respectable air as the ClassRep.
* HomoeroticSubtext: Starting in Disappearance she starts showing a weird fixation on Yuki, though some of it may be a result of [[spoiler:Yuki restructuring the world]]. It's really hard to interpret her behavior properly considering how, well, ''alien'' she is. Perhaps it's a mix of IfYouEverDoAnythingToHurtHer and IWantMyBelovedToBeHappy.
* ImprobableWeaponUser: A subversion of this. She uses a mundane weapon, which is pretty odd if you think about it. In the anime she uses a [[http://en.wikipedia.org/wiki/Survival_knife survival knife]](note the top serrations, it's not detailed as much in the novels). This knife is primarily intended as a tool rather than a weapon. In short, she uses an improbably mundane weapon.
* LetsGetDangerous: [[spoiler:"Shifting to Termination Mode."]]
* Letters2Numbers: Yuki(?) rewrites Haruhi's graphic to say 505. However 708 remains just an apartment number. (Unless it's short for Be On the Lookout).
* MaskOfSanity: Seems like a nice popular girl, but truly insane.
* NominalHero: [[spoiler:As of Book 10. She's still the same Asakura, she just happens to be fighting on the same side as the Brigade now.]]
* NotQuiteDead: [[spoiler:''Twice.'']]
* PsychopathicWomanChild: Insane with a girly voice.
* RefusedByTheCall: Near the beginning, Haruhi asks for aliens, among others, to join her. Ryoko, being in Haruhi's class and hearing Haruhi's request, seemed perfect for Haruhi, being an alien and quite willing to engage and befriend Haruhi. However much Ryoko tries to join Haruhi, though, Haruhi doesn't even acknowledge Ryoko's existence until Ryoko "transfers out" to Canada. Haruhi rejects Ryoko in favor of Yuki, despite Yuki not being in the same class and apparently not even making any attempt to contact Haruhi directly. Kyon lampshades this fact in ''Surprise''.
* SummonMagic: Invoked by Ryoko in Surprise when she tells Kyon that he can call her at any time and she will appear, after just saving his life in like fashion--only, Kyon doesn't remember ever summoning her.
* TokenEvilTeammate: [[spoiler:Fills Haruhi's shoes in that role, although Haruhi was actually more antagonistic than evil until her HeelFaceTurn in ''Sigh'' left a void that Asakura would eventually fill in ''Surprise Vol. 1''.]]
* TomboyandGirlyGirl: Girly Girl to Haruhi's, Yuki's, and Tsuruya's tomboys.
* UncannyValleyGirl: She keeps up that impeccable smile at all times. ''All'' times.
* UnresolvedSexualTension: With ''Kyon'', of all people. Especially given the... ''imagery'' involved. [[spoiler:He really, ''really'' tries to avoid acknowledging this in the 10th novel, straight down to refusing to ''look'' at her... because he doesn't want to admit to himself that she's attractive and that looking at her might allow him to begin to forgive her, a trap he fell into already in "Disappearance."]]
* VillainousRescue: [[spoiler:Saves Kyon from Kuyo in the 10th novel.]]
* WellIntentionedExtremist: All Ryoko wants to do is to break the status quo and incite some reaction from the titular character. Her method happens to be trying to murder the narrator, and major love interest, Kyon. [[spoiler:When she returns in the tenth novel as a Boxed Crook, she still wants to kill Kyon because she still believes that her actions were justified. Still, she protects him, because she wants to be the one to kill him.]]
%%* {{Yandere}}: Ryoko's human incarnation in ''Disappearance'' is very much one of these.

[[folder:Adult Mikuru]]
!!Adult Mikuru
->'''Voiced by''': Creator/YukoGoto (JP), Creator/StephanieSheh (EN)

Mikuru's future self who appears several times to Kyon.
------
* AntiHero: She can be quite morally ambiguous and manipulative at times.
%%%% being this trope doesn't equate losing cuteness.
%%%* CoolBigSis: Towards Kyon
* FemmeFatale: More obvious than her younger version.
* FutureBadass: Maybe not badass, but Mikuru's future self [[PluckyGirl is rather competent and self-confident]], compared to her younger self. On the downside, she's [[ManipulativeBastard a lot less morally clear.]]
* GrewASpine: The once shy and fragile girl is shown to be very self-confident in the future.
* TheHandler: Her role in ''Intrigues'', to the point that ''Intrigues'' reads much like a spy novel. The differing layers of classification (after all, not even the younger Mikuru knows that her own future self is her direct superior) and the overall atmosphere of secrecy gives the time travelers' faction the feel of an espionage agency, and as their field representative Adult Mikuru is responsible for much of that atmosphere.
%%* {{Kawaiiko}}
* LightFeminineAndDarkFeminine: Dark Feminine to her younger self's Light Feminine.
%%* ManipulativeBitch
%%* PluckyGirl
* TookALevelInJerkass: ''Scheme'' reveals that the once NiceGirl will grow up to be one of the more manipulative characters of the series [[spoiler:(even to the point of abusing her younger self) unless, as hinted at in the SequelHook in ''Surprise Vol. 2'', Kyon can prove Fujiwara wrong on the subject of whether history can indeed be changed.]]
* {{Transhuman}}: In ''Disappearance'' she reveals that she has a non-physical computer integrated with her brain, and that her time-travel device is likewise a part of her.
* UnscrupulousHero: If not outright evil.

[[folder:Tsuruya]]
!!Tsuruya
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/tsuruya.png]]
->'''Voiced by''': Creator/YukiMatsuoka (JP), Creator/KariWahlgren (EN)

No one really knows what's up with Tsuruya-san, Mikuru's classmate, ersatz SOS Brigade member and something of a SixthRanger. She's got the (ankle length) green hair one would expect from a Humanoid Interface, but seems to be totally normal, if just as much of a GenkiGirl as Haruhi. She's also notable for her {{Cute Little Fang|s}}, BigFancyHouse, [[TheHyena tendency to point and laugh (very loudly)]], and for inspiring the {{Fan Webcomic|s}} and MemeticMutation Sensation, [[Manga/HaruhiChan Churuya]]. She also seems unusually aware of the SOS Brigade's oddities for a {{Muggle}}, but seems content to enjoy the show rather than disrupt the Brigade's attempts to keep Haruhi under control.
------
* AttentionDeficitOohShiny: She is, needless to say, quite distractable (and hyper).
* BigFancyHouse: A traditional Japanese home that takes up an entire ''block''. Then there's their ski house, which is slightly more sane, but still huge.
* CoolBigSis: In age and attitude; she dotes on her younger friends as if she ''is'' their big sister.
* CrouchingMoronHiddenBadass: Although she isn't "special" enough to be an official member, she is well aware of the abnormalities around the SOS Brigade. She can quickly grasp the situation while at the same time be tactful enough to keep Haruhi and herself out of the loop.
* CuteLittleFangs: One at a time, but it flips from one side of her mouth to the other depending on the scene.
* DissonantLaughter: She laughs at all times--even during ''The Sigh of Haruhi Suzumiya'' when [[spoiler:Mikuru is drunk]]. That scene was treated like something out of a horror movie, except for Tsuruya's laughter. But even she shuts up when [[spoiler:Kyon tries to punch Haruhi.]]
* GenkiGirl: She manages to out-genki ''Haruhi''.
* GivingSomeoneThePointerFinger: Tends to do this when she laughs.
* HeroOfAnotherStory: Itsuki implies that she's off having her own adventures; her family is "very influential" in the Esper community, even though she's not one.
* TheHyena: Once she finds something funny, it's hard to make her stop laughing. She's not big on subtlety either. She won't just laugh, she'll ''point'' and laugh. There's ''one'' single occasion where she gets serious. Since it's Tsuruya, this only helps to increase the drama and tension.
* MotorMouth: She generally enters a scene by asking a million questions, then hopping off to ask someone else a million questions, all before waiting for a single answer.
* NiceGirl: Will be friends with anyone, unless they hurt Mikuru.
* NoFullNameGiven: Only her family name is known.
* {{Ojou}}: She doesn't act like it, but she's ''filthy'' rich. [[spoiler:Her family is one of the backers for Itsuki's Organization.]]
* OOCIsSeriousBusiness: When she's not laughing when Haruhi abuses Mikuru during "The Sigh".
* SayingSoundEffectsOutLoud: See VerbalTic below.
%%* ShesGotLegs
* ShipTease: [[spoiler:With Kunikida in Book 11]]. Kyon notes that [[spoiler:she'd probably like the kind of guy who would strive to become as smart as her just to be able to go to the same school.]]
* TheTease: She likes "suggesting" things to Kyon. Like recommending he stay overnight at her guest house with Mikuru. Of course, she's only kidding, and Kyon doesn't fall for it.
* TomboyAndGirlyGirl: Tomboy to Mikuru's Girly Girl. Shares this status with Haruhi.
* TomboyWithAGirlyStreak: Athletic and bold like Haruhi, but way more hyper. A tomboy proud of her long hair and doesn't mind a maid outfit.
* VerbalTic: "Nyoro[[note]]Japanese for [[SayingSoundEffectsOutLoud tilde (~)]][[/note]]" though she only says it very rarely (once in the anime). The anime also adds "megas"; though it's used only once in the actual anime it appears in her character songs.

[[folder:Emiri Kimidori]]
!!Emiri Kimidori
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/emiri_kimidori.png]]
->'''Voiced by''': Creator/YuriShiratori (JP), Creator/HyndenWalch (EN)

Emiri Kimidori is a mysterious student in North High and a MysteriousWatcher to the Brigade. She is revealed to be a humanoid interface just like Yuki, but does very little, save for a couple of minor plots and being an ally to the StudentCouncilPresident.
------
* AdaptationInducedPlotHole: More regarding characterization. The character songs for the anime's first season were released prior to the tenth-novel preview; building off the fact that she's an interface, the songs portrayed her as someone reaching for humanity and wanting to participate in the fun everyone else has but being unable to. The tenth-novel preview, however, revealed that [[spoiler:she doesn't give a damn about anything that interferes with what the Entity wants, not even Yuki's personal safety.]]
* AllPowerfulBystander: [[spoiler:Of the first and last variety at the same time: she hasn't been ordered to help out Nagato when she gets sick in the tenth novel, and she doesn't care enough about her to do so either. Thus, she just continues to watch.]]
%%* CurtainsMatchTheWindow
* IJustWantToBeNormal: According to her ImageSong. [[spoiler:However, in the novels this turns out to be a case of CanonMarchesOn, since she appears to actually be largely indifferent to humans and is strictly loyal to the Entity.]]
* KickTheDog: [[spoiler:She says it's not her place to look after Yuki when she's in trouble, and generally has little care whether Yuki lives or dies.]]
* MysteriousWatcher: Essentially the role given to her. She refuses to act outside of this.
%%* ObstructiveBureaucrat
[[/folder]]

[[folder:Taniguchi]]
!!Taniguchi
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/taniguchi.png]]
->'''Voiced by''': Creator/MinoruShiraishi (JP), Creator/SamRiegel (EN)

One of ThoseTwoGuys and Kyon's main non-SOS Brigade friend. Both totally normal to all appearances, Taniguchi is a BigEater and something of a teenage CasanovaWannabe who is implied to have dated Haruhi for exactly five minutes back in junior high.

* BreakoutCharacter: To some extent. Enough to get his own image songs in season 2, at least. And he gets alot of scenes extended or added to the movie.
* CasanovaWannabe: Oh boy. [[SexinessScore Rates all the girls in school on an A-F scale meticulously]], and flirts with them a lot too. Accumulates years worth of experience with the successful rate of zero.
* ChekhovsGunman: In ''Disappearance'', he mentions he's looking for girls from Kouyouen Academy, and in ''Intrigues'' it's implied that he got together with one and that she broke up with him. [[spoiler:That girl was [[ArtificialHuman Kuyou]] [[StarfishAliens Suou]], who mistook him for Kyon.]]
* DidWeJustHaveTeaWithCthulhu: Taniguchi briefly tasted Haruhi's shortest relationship, listed one alien as a top pick, then dated another one for four months. Fortunately for his sanity, he's LockedOutOfTheLoop and just a RomanticFalseLead.
* GenkiGirl: Or rather, Genki Boy, as he is very energetic, as [[LampshadedTrope lampshaded]] by Kyon asking him to 'rub some of his energy onto me (Kyon) sometime'
%%* ShipperOnDeck: For Kyon and Haruhi.
%%* ThoseTwoGuys: Though, he does get alot more scenes later on, and two character songs.

[[folder:Kunikida]]
!!Kunikida
[[quoteright:145:https://static.tvtropes.org/pmwiki/pub/images/kunikida.png]]
->'''Voiced by''': Creator/MegumiMatsumoto (JP), Creator/BrianneSiddall (EN)

One of ThoseTwoGuys, Kunikida is Kyon and Sasaki's junior high friend, and receives no CharacterDevelopment or {{Backstory}} detail whatsoever - except that he gets better grades than Taniguchi or Kyon. They both act as an anchor of normalcy for Kyon, and occasional extra bodies in the SOS Brigade for things like baseball games or magazine publishing.

* HyperAwareness: In Surprise, [[spoiler:Kunikida is able to at least notice that Yuki Nagato and Kuyou Suou aren't what they seem, noting that he senses an "inhuman aura" from them.]]
* SensitiveGuyAndManlyMan: Sensitive Guy Kunikida who is quite passive compared to Taniguchi who is loud and reckless.
* ShipperOnDeck: For Kyon x Sasaki. (In the novels at least.)
* ShipTease: [[spoiler:He to North High so he can be with Tsuruya more often.]]
* ThoseTwoGuys: He is one of Kyons other friends, and but in the background than Taniguchi

%%[[folder:Data Overmind]]
%%!!Data Overmind
%%BadBoss
%%Moe:
%%SufficientlyAdvancedAlien:
%%YouCannotGraspTheTrueForm
%%[[/folder]]

[[folder:Kyon's Little Sister]]
!!Kyon's Little Sister
[[quoteright:320:https://static.tvtropes.org/pmwiki/pub/images/kyons_sister.png]]
->'''Voiced by''': Creator/SayakaAoki (JP), Creator/KariWahlgren (EN)

Kyon's Little Sister, [[NoNameGiven known only as]] [[UsefulNotes/JapaneseSiblingTerminology Imouto-chan]], is a [[CheerfulChild chipper little kid]] who occasionally [[TagalongKid tags along on her brother's sort-of-adventures]], being a bit [[GenkiGirl hyper]] but still better-mannered than most {{Annoying Younger Sibling}}s. Since [[AdultsAreUseless their parents seem to leave them to their own devices]], she forms the core of Kyon's family life in the novels, and as Kyon's home life doesn't get much attention she is mostly seen with her brother outside the house.

* AnnoyingYoungerSibling: To Kyon, sometimes. As is often so in real life, not a view held by anyone else.
* CaptainObvious: "Kyon-kun, your phone".
* CheerfulChild: She's generally an innocent, happy-go-lucky girl. She often acts younger than her age, cares more about having fun with things than actually learning to do them properly (like the time Kyon notes that she seems to be enjoying herself trying to ski even though she’s falling down every five seconds), and is liable to spontaneously start singing to herself or the cat at completely random moments. The only thing that ever seems to upset her is being left behind when Kyon goes on a trip.
* CutenessProximity: Turns to mush around Shamisen, always wanting to pet him and play with him and sing little songs to him. May also explain why she enjoys being around the girls in the SOS Brigade too, especially Mikuru.
* GenkiGirl: A milder version than Haruhi and Tsuruya, but she definitely qualifies. She’s very energetic, especially when she’s excited about something, she’s full of confidence and determination (though usually without the talent to back it up), and she loves to talk. Kyon notes that her outbursts of hyperactivity often end with him carrying her because she’s worn herself out and fallen asleep.
* LittleStowaway: She tries to hide in Kyon's duffel bag when he's packing for the Brigade's Remote Island trip, but he quickly discovers her when he picks up the bag and notices it's much heavier than it should be. In the book he makes her stay home, but in the anime she's allowed to come along anyway.
* LockedOutOfTheLoop: While she tags along with the SOS Brigade from time to time, she doesn't know anything about the members' true natures and she's managed to avoid getting caught up in any of their more serious adventures. Kyon is happy to keep it that way.
* TheNicknamer: "Kyon-kun" for Kyon, "Shami" for Shamisen, "Miyokichi" for her friend Miyoko Yoshimura, and "Haru-nyan" for Haruhi. She's the only other person besides Kyon and Tsuruya who ever addresses Haruhi informally, and while she didn't invent the nickname "Kyon" for her brother, she ''is'' the one responsible for spreading it around to everyone else.
* NoNameGiven: Kyon and all of his friends never call her anything except Imouto-chan (Little Sister).
* SixthRanger: She is one of the people who joins in Brigade activities from time to time when they need more hands on deck. Lampshaded by Kyon in "Snowy Mountain Syndrome," when he notes that she's basically a junior Brigade member as far as Haruhi is concerned.
* SuperStrongChild: Played for laughs in the anime, and especially the movie version of ''Disappearance''. She isn't strong enough to hit a baseball more than five feet without the help of Nagato's magic baseball bat, but she has no trouble physically hauling her 16-year-old brother out of bed and dumping him on the floor every morning to wake him up.
* TagalongKid:
** Invoked in "The Boredom of Haruhi Suzumiya" – Kyon doesn't want the SOS Brigade to win their baseball game, so he deliberately brings his little sister along to play with them because he knows she's a terrible player and [[TheLoad is more likely to hurt their their chances of winning than help]].
** Subverted in the "Remote Island Syndrome" short story. She tries to tag along on the trip, but Kyon catches her and sends her home.
** Defied in the "Remote Island Syndrome" anime adaptation and in "Snowy Mountain Syndrome." She is allowed to tag along on the trips, but both times she has other people babysitting her and keeping her safely out of the way when the SOS Brigade get caught up in the real adventure.
** Lampshaded by Haruhi in "Where Did The Cat Go?" during the game of ''fukuwarai''. Kyon's sister was again an uninvited tag-along, but Haruhi says that she knew she would join them, and pulls out another game sheet that she drew for her before they left.
* TokenMiniMoe: An UnbuiltTrope. She isn't sexualized in any way, appears only sparingly, never [[SpotlightStealingSquad steals the spotlight]] when she does appear, and [[AnnoyingYoungerSibling annoys the hero]] because she acts her age. One would be hard-pressed to find an anime character with these traits in TheNewTens.

[[folder:Computer Club President]]
!!The Computer Club President
[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/computer_research_society_prez.jpg]]
->'''Voiced by''': Nobuyuki Kobushi (JP), Creator/DaveWittenberg (EN)

A nameless character who is the president of the Computer Society. His role in the plot is essentially TheChewToy, being the subject of several of Haruhi's antics -- being blackmailed into giving away computers to the SOS Brigade, getting taken over by a cricket-like Data Entity, etc. He declares himself and his club to be rivals to the SOS Brigade and challenges them to a game of their own creation, but they lose and become "vassals" to the SOS Brigade. Emiri Kimidori also pretended to be his girlfriend. [[ButtMonkey It must suck to be him.]]

* ButtMonkey: He's tipically on the receiving end of Haruhi's crazy antics when he's around.
%%* TheChewToy
* DefiantToTheEnd: In ''Day of Sagittarius'' he screams [[Anime/MobileSuitGundam "Glory to the Computer Club!"]] when his ship is destroyed.
* DefeatMeansFriendship: After getting "subjugated", the Computer Club has been on good terms with the SOS Brigade and sometimes gives support in the Brigade's activities. He even wishes [[PhysicalGod Yuki]] to become his successor.
* DynamicEntry: The receiver of it once he declares the Computer Society to be the SOS Brigade's rivals.
* LargeHam
* LaserGuidedKarma: After he and his boys try to cheat their way to victory in their game against the SOS Brigade, Yuki manages to one-up them by hijacking the code to their game so as to prevent them from cheating.
* NoNameGiven: The anime at least, plays with this by making Kimidori say his name, only to get cut off by the meowing of a cat.
* OnceDoneNeverForgotten: Everyone remembers how Haruhi blackmailed him into giving the SOS Brigade computers...[[ButForMeItWasTuesday except for Haruhi herself]].

[[folder:Student Council President]]
!!The StudentCouncilPresident
[[quoteright:214:https://static.tvtropes.org/pmwiki/pub/images/HarSuzStuCoPrez.jpg]]

Another character with NoNameGiven, he is the school's StudentCouncilPresident introduced in ''The Indignation of Haruhi Suzumiya'' by Koizumi to give Haruhi an antagonist and to keep her from getting bored. He acts like FourEyesZeroSoul in his role as the president, but he is secretly laughing at how ridiculous his job is. Later on, it seems that Haruhi's influence is making him take his job more seriously.
-----
* ArmorPiercingQuestion: Delivers one to Haruhi in ''Indignation''. Kyon notes that few people have that ability.
-->'''Student Council President''': If I had something to be proud of, it would be that I am in this position as the result of a fair election. And so, how did you come to be sitting on that seat? Oh, honorable Brigade Chief?
* BecomingTheMask: He comments that he slips back into his mask every now and then, even when Haruhi isn't around. He seems unconcerned, but is warned against this trope by mask master Koizumi himself.
* CorruptPolitician: Both as a facade and in reality, albeit on a high school scale. To the SOS Brigade, he is a bully abusing his authority to destroy the Brigade. In reality, he kicked out all other members of the Student Council except Kimidori and intends to use the Student Council fund for his own interests.
* FullNameBasis: Or a Japanese variant thereon: he always addresses female students with the honorific "-kun," which is typically used for boys and young men. As Wiki/ThatOtherWiki notes, there are two exceptions to that practice, "in business settings, young female employees may also be addressed as -kun by older males of senior status," and "in the Diet of Japan (Legislature), chairpersons use -kun when addressing diet members and ministers." Either way, he's being pretentious.
%%* HiddenHeartOfGold
%%* {{Jerkass}}
%%* ScaryShinyGlasses
%%* SmugSnake
* StudentCouncilPresident: Invoked by Koizumi to keep Haruhi entertained.

[[folder:Yasumi Watahashi]]
!!Yasumi Watahashi
[[quoteright:194:https://static.tvtropes.org/pmwiki/pub/images/YasumiWatahashi_1741.png]]

Formally introduced in ''Surprise'' (having made her first nameless appearance in ''Dissociation''), Yasumi Watahashi is one of the new first years at North High participating in Haruhi's rigorous SOS Brigade entrance tests. Kyon notices her among the other first years as the only one interested in Haruhi's lecture on the history of the SOS Brigade.

%%* ChekhovsGunman
* DeusExMachina: [[spoiler:Literally, she was created by Haruhi's subconcious precisely in order to handily solve the plot.]]
* EvenTheGirlsWantHer: Mikuru certainly does.
* HaveWeMetYet: Kyon recognizes her from ''somewhere'', but cannot for the life of him remember where. [[spoiler:In the Beta timeline, she runs into him in the clubroom and notes that she hadn't met that version yet]].
* {{Foreshadowing}}: Loads.
** She greets Kyon on the phone with "It's me, ME." This is him mishearing her name; "Watahashi" sounds a lot like "watashi." So she was actually saying "It's me, Watahashi." [[spoiler:Kyon notes that only Haruhi could get away with "It's me;" she ''is'' Haruhi]].
*** The official English translation of ''Dissociation'' manages to preserve this: rather than having her emphasize "watashi," Yasumi instead ''spells out'' the word "me" ("It's M-E, me") — said out loud, it sounds like the tail end of her first name, Yas''umi'', which keeps the sense that Kyon was mishearing her.
** She manages to keep up with Haruhi in a marathon, which should be literally impossible. [[spoiler:Because she is Haruhi]].
** Every single member of the club instantly loves her, even Yuki. [[spoiler:While for the others it was likely unconscious, Yuki was almost certainly well aware of who and what she was]].
** After being told that Kyon made the SOS Brigade website and that she should fix it, she goes into a rant about what a horrible job he did, and that she'd expect a middle-schooler to do better. [[spoiler:Sounds exactly like the kind of thing Haruhi would say]].
* GenkiGirl: Her energy even gets on Haruhi's nerves.
* LiteralSplitPersonality: [[spoiler:To Haruhi, which explains why Kyon finds her so familiar.]]
* {{Moe}}: InUniverse, even Mikuru can't stand how adorable she is.
* MoeAnthropomorphism: [[spoiler:Of Haruhi's subconscious self.]]
* MomentKiller: [[spoiler:Deliberately interrupts Sasaki's meetings with Kyon, even though Sasaki couldn't bring herself to confess to Kyon the first time around.]]
* NoPronunciationGuide: She writes that she would prefer her name be pronounced like it's written in katakana. The rest of the brigade has absolutely no clue as to what this is supposed to mean. Haruhi (whose given name is always written in katakana) thinks it's significant, but Kyon believes it's just DistinctionWithoutADifference.
* SempaiKohai: As a first year, she's a kohai to the entire SOS Brigade. [[spoiler:In the phone call, she refers to Kyon as "Sempai".]]
* SignificantAnagram: When her name is read in the proper reading (Yasumizu Watahashi), it can be rearranged to say [[spoiler:''watashi wa(ha) Suzumiya'' -- I am Suzumiya.]]
* SixthRanger: [[spoiler:[[AvertedTrope Albeit briefly]].]]
* StalkerWithACrush: To Kyon. She calls him before they ever meet, and shows up at his house completely unannounced to play with his sister. He's disturbed, despite her being quite blase and low-key about it, and doesn't understand why she doesn't see it as a big deal. [[spoiler:Actually, she was helping keep the timelines synched by performing Sasaki's actions from the Beta timeline in the Alpha. She does appear once in the Beta timeline by "accident," apparently just to see how he's doing.]]
* TomboyAndGirlyGirl: Girly girl counterpart to her tomboyish foil, Haruhi.
* UpToEleven: Haruhi wishes the new member to be cuter than [[{{Moe}} Mikuru]], more polite than [[StepfordSmiler Itsuki]], and more obedient than [[TheQuietOne Yuki]]. She gets exactly that.

[[folder:"T"]]
!!"T"

T is a {{foreign exchange student}} in Kyon and Haruhi's class, and a member of the Mystery Research Club. She's a big fan of mystery novels and borrows books from Yuki on occasion.

* ChildhoodFriends: With Tsuruya.
* IHaveManyNames: Aside from her real name, she is known as "T" to her classmates and is called "Lie" by Tsuruya.
* TheNicknamer: She has trouble pronouncing Japanese names, so she tends to give people nicknames, such as calling Kyon "Kyam," Haruhi "Haru," and Koizumi "Ikki."
* {{Ojou}}: Like Tsuruya, she is from a rich family.
* OnlyKnownByInitials: Sort of. T isn't so much an initial but rather a nickname that came from her first name.
* OnlyKnownByTheirNickname: The entire class calls her T because [[spoiler:Ottilie Adrastea Hohenstaufen-Baumgartner]] is [[OverlyLongName very long]] and hard to pronounce.

[[folder:Shamisen]]
!!Shamisen
->'''Voiced by''': Creator/KenichiOgata (JP), Steve Kramer (EN, season 1) Creator/MichaelMcConnohie (season 2) (EN)

Shamisen is an everyday alley cat (or maybe not...) who becomes a [[TouchedByVorlons Touched By Haruhi]] TalkingAnimal for a while when playing Yuki's familiar in the ''Adventures of Mikuru Asahina'' student film. He's actually quite ThePhilosopher when he can speak. He loses this ability after the film is finished and the weirdness starts to wear off, but he becomes [[TeamPet involved in a few other adventures]] after Kyon and his sister adopt him. He is also a male calico.

* ContemplateOurNavels: He's awfully philosophical, at times when he can speak.
* MeaningfulName: Shamisen (the instruments) use cat skin in their construction.
* UnusuallyUninterestingSight: He's a ''male calico cat''. Kyon mentally comments on this. This ''is'' possible (though very rare) in real life, due to males with the XXY chromosome set. However, this also probably means that Shamisen is sterile.

!!The Agency

[[folder:Keiichi]]
!!Keiichi Tamaru
->'''Voiced by''': Creator/KazuhikoInoue (JP), Creator/DaveWittenberg (EN)

A distant relative of Itsuki's, who apparently made his fortune in biotechnology, and offered his island villa to the Brigade for a vacation. Actually a member of Itsuki's Organization, and probably not even related to him.

* TheDriver: During his appearance in ''Intrigues'', he drives a cop car with the skill that can only come from lots of experience.
* FakingTheDead: Twice, once at the Remote Island and once on the Snowy Mountain. He put significantly more effort into it the first time.
-->'''Keiichi:''' Hello. I've been stabbed again.\\
'''Haruhi:''' Who killed you?\\
'''Keiichi:''' I can't say. I'm dead.
* PsychicPowers: As a member of the Organization with a full name, he's implied to be an esper, but that hasn't actually been confirmed.
* SelfMadeMan: His cover. It might even be true.

[[folder:Yutaka]]
!!Yutaka Tamaru
->'''Voiced by''': Creator/ToshiyukiMorikawa (JP), Creator/VicMignogna (Main Series), Creator/ToddHaberkorn (''Nagato Yuki-chan'') (EN)

Keiichi's younger brother, who killed him at the Remote Island. Not really, of course; it was all part of the show. He's a member of Itsuki's Organization, and it's unclear if he's even related to Yutaka.

* AccidentalMurder: The script for Remote Island claimed that he got into an argument with his brother and accidentally stabbed him.
* ImpersonatingAnOfficer: His appearance in ''Intrigues''. Though Mori lampshades the fact that Kyon has no way of knowing if he's a fake or a real cop.
* PsychicPowers: As a member of the Organization with a full name, he's implied to be an esper, but that hasn't actually been confirmed.

[[folder:Arakawa]]
!!Hajime Arakawa
->'''Voiced by''': Creator/AkioOhtsuka (JP), Michael Forest (EN)

The butler working for Yutaka Tamaru on his island villa. In reality, he's a member of Itsuki's Organization.

* TheDriver: His appearance in ''Intrigues'' involves him driving the car chasing [[spoiler:Mikuru's kidnappers]], and Kyon even wonders if he's the one who drove the black cab Itsuki is occasionally seen riding around in.
* TheTeamNormal: Due to the way names are used to indicate powers in this series, the fact that he only has one name implies he is not an esper, unlike the rest of the team, but neither his lack of powers nor his teammates' having powers is confirmed.
* PapaWolf: He is dangerously calm when [[spoiler:Mikuru is kidnapped]], and Kyon notes that he acts like she is his own grand-daughter.

[[folder:Mori]]
!!Sono Mori
->'''Voiced by''': Akane Omae (Main Series), Creator/ChiakiOmigawa (''Nagato Yuki-chan'') (JP), Creator/HyndenWalch (EN)

The maid working for Yutaka Tamaru on his island villa. Of course, she's not actually a maid, but a member of Itsuki's Organization.
----
* {{Meido}}: She's a prim and proper Western maid. Not really, of course, but she does a very good job of faking it.
** [[AlternateCharacterInterpretation Alternately]], she actually ''is'' a maid when not performing her duties for the Organization.
* PsychicPowers: As a member of the Organization with a full name, she's implied to be an esper, but that hasn't actually been confirmed.
* VagueAge: Kyon's pretty sure she's older than him (judging by the fact that she can drive), but other than that, it's hard to pin her down.
[[/folder]]

!!The Anti-SOS Brigade

[[quoteright:352:https://static.tvtropes.org/pmwiki/pub/images/asos.jpg]]
[[caption-width-right:352:Clockwise from the top-left: Fujiwara, Kyoko Tachibana, Sasaki, and Kuyo Suo.]]
-----
The "'''Anti-SOS Brigade'''" are ThePsychoRangers. While not nearly as cohesive as Kyon's TrueCompanions, they've more or less allied for differing reasons.

[[folder:Sasaki]]
!!Sasaki

Kyon's old girlfriend. Or at least the female person he used to hang around with, and the reason for his pre-Haruhi reputation for "liking weird girls." Sasaki is intelligent and analytical...but chooses not to do anything to change her environment. She knows about aliens, time-travelers and espers, which are interesting, but she's not going to change her daily routine over it. She's somewhat of TheSpock and wishes to keep out of the God-business all the organizations have.
----
* ACupAngst: A one-off comment from her in ''Rainy Day'', where she expresses a hint of jealousy upon the idea of Kyon ogling the popular girl in their class and her larger "assets".
* AntiVillain: Seemingly a Type I [[spoiler: but really a Type IV.]]
* {{Bokukko}}: Strangely, she refers to herself using male pronouns when speaking to boys, but switches to female pronouns when talking to girls.
* CatchPhrase: "Yare yare", at least in the past. Yes, ''she's'' the one Kyon picked that up from.
* ChekhovsGunman: She was mentioned offhand multiple times as Kyon's precedent for liking weird girls (even before most of the characters were introduced), and [[EarlyBirdCameo her name appears in Kyon's phone in the Disappearance movie]] ([[http://imgh.us/Sasaki_EarlyBirdCameo_1.png screenshots]] [[http://imgh.us/Sasaki_EarlyBirdCameo_2.png here]]); she doesn't actually appear until the ninth novel.
* ContemplateOurNavels: This habit of hers can easily rival Itsuki's.
%%* CurtainsMatchTheWindow
* EvilCounterpart: To Haruhi, in that she's the god analogue, but also to Kyon in that she's pretty much just a normal person being dragged along for the ride. Her philosophical ramblings have a lot in common with Koizumi, as well.
* ForgottenChildhoodFriend: To Kyon [[spoiler: and Haruhi.]]
* GoodAllAlong: Though she's introduced as Haruhi's EvilCounterpart, she's actually the only member of her group who isn't villainous at all. [[spoiler: In fact, she was even a friend of Haruhi's back in elementary school! She and Kyon hatch a plan to stop the rest of the Anti-SOS Brigade. [[BrokeYourArmPunchingOutCthulhu It wouldn't have worked]], but it's the thought that counts.]]
* IJustWantToHaveFriends: She mentions that one of the reasons she hangs around the Anti-SOS Brigade is that they're the only people who talk to her. In the end, [[spoiler: Kyouko states that she wishes to remain Sasaki's friend, and Kyon promises to always be her friend too, so things work out well for her.]]
* MeaningfulRename: She notes that her family name was different in elementary school, but it was changed for some reason. [[spoiler:This is why Haruhi didn't recognize her]].
* NewOldFlame: Suddenly introduced as Kyon's 'close friend' in the ninth novel, but was foreshadowed in the first novel.
%%* ThePhilosopher
* RefusalOfTheCall: She tells Kyoko she wants nothing to do with [[spoiler:Haruhi's power]].
* StopWorshippingMe: Unlike the relationship between Haruhi and Koizumi (where he merely theorizes she is a god as a hypothetical scenario), Kyoko very strongly believes that Sasaki is god, and furthermore deserves to be. Sasaki, on the other hand, thinks Kyoko would be much happier if they were just friends.
* SuspiciouslySpecificDenial: Feels the need to bring up the topic again and again to remind NotLoveInterest Kyon (and herself) that about the SheIsNotMyGirlfriend.
* TokenGoodTeammate: [[spoiler:Just as Haruhi was [[HeelFaceTurn once]] the [[TokenEvilTeammate Token Antagonistic Teammate]] to the SOS Brigade, so is Sasaki ''this'' to the Anti-SOS Brigade, eventually to the point of actively trying to sabotage Fujiwara's goals with the help of Kyon and Yasumi.]]
* TomboyAndGirlyGirl: Girly Girl to Haruhi's Tomboy. Ironically, ''she's'' the one that [[{{Bokukko}} refers to herself using male pronouns]], though it actually depends on who she's talking to (i.e. the gender of the other party is proportional to the gender of her first-person pronouns).
* UnwittingPawn: [[spoiler:To the rest of her group, but especially Fujiwara. She was one of few, however, to exactly ''know'' she was the group's pawn and secretly worked to stop it.]]
[[/folder]]

[[folder:Kyoko Tachibana]]
!!Kyoko Tachibana

An Esper who believes that Sasaki should be God. Reveals that in Sasaki's Closed Space, nothing changes. Ever. She also believes that Kyon has the power to transfer the power from Haruhi to Sasaki.
----
%%* CuteClumsyGirl
* EvilCounterpart: To Itsuki, as an esper. But in personality she more resembles Mikuru, being gentle, kind, and [[UnwittingPawn having no idea what is really going on]].
%%* GirlishPigtails
%%* HeelFaceTurn
* HeelRealization: [[spoiler: Complete with a brief {{Villainous BSOD}} and MyGodWhatHaveIDone.]]
* MoeStare: Usually depicted with one.
%%* PsychicPowers
* ReformedButRejected: Though she seems to genuinely regret being a part of the whole [[spoiler:kidnapping Mikuru/Michiru]] thing, Kyon still doesn't trust her because of it.
* ShipTease: With [[spoiler:Itsuki]] at the end of Novel 11.
* TouchedByVorlons: As with the other espers. [[spoiler:Her powers, however, came from Sasaki.]]
%%* WellIntentionedExtremist
* WhamLine: Delivers the main one in ''Dissociation'': [[spoiler:"We believe the existence of the real god is not Miss Suzumiya, but Miss Sasaki."]]
[[/folder]]

[[folder:Kuyo Suo]]
!!Kuyo Suo

An agent of the rival to the Data Overmind: the Canopy Domain. Has far, far less social skills than Yuki; she seems rather unaware of anyone's existence. Has a lot of dark hair which is commented on, possibly a reference to the StringyHairedGhostGirl trope.
----
* ArtificialHuman: She is an interface, after all.
* BlueAndOrangeMorality: Does not understand morality. All she knows is that she wants to communicate, but doesn't know what it actually means to communicate or to fully grasp what other entities are. Since she goes about it in such incomprehensible ways, it leaves her extremely dangerous.
* CreepyMonotone: Unlike Yuki's, hers ''is'' legitimately creepy.
%%* CurtainsMatchTheWindow
* EeriePaleSkinnedBrunette: Combined with her [[StringyHairedGhostGirl design]] and personality, she definitely gives off this vibe.
* EvilCounterpart: To Yuki. Unlike the other members of her team, she's a straight parallel with only one counterpart. She's pretty much Yuki but without any of her positive qualities and with all of her negative traits taken to [[HumanoidAbomination highly unsettling degrees]].
* EvilerThanThou: She's worse than Ryoko Asakura AND Emiri Kimidori, although her definition of evil might be difficult.
* HumanoidAbomination: She has the appearance of a human girl, but everything about her behavior is described as being very alien and unnatural. The only thing that can be discerned from her actions is that she wants to communicate, but her [[BlueAndOrangeMorality alien morality]] means she has no idea how.
* KillTheGod: Serves as an accomplice to an attempted one.
* MementoMacGuffin: The only mildly humanizing element to her character is the fact that she kept the watch [[spoiler:Taniguchi]] gave her, and even thanks him for it when she sees him again.
* NoSocialSkills: Not played humorously either. She is so mentally alien that she literally has no idea how living things, let alone humans, act.
* SchoolUniformsAreTheNewBlack: Like Yuki, she doesn't seem to wear anything else.
* ShadowArchetype: To Yuki; she's essentially what Yuki would be like if she had even fewer social skills and absolutely no idea how regular humans interact or behave, and as a result she's even more unsettling and alien.
* StarfishLanguage: Implied at first, and then mostly subverted. The Canopy Domain did not, in fact, really know what communication even was, meaning they ''had'' no language.
* StealthPun: When Kyon asks if the Canopy Domain means overhead, Yuki points North, while sitting at North High.
* TechnicallyASmile: As Kyon puts it, "the perfect simulation of a smile."
* UncannyValleyGirl: Everything about her just screams that there's just something ''wrong'' about her.
* WhenSheSmiles: Subverted; her smile is beautiful, but it's [[UncannyValley just not right]].
[[/folder]]

[[folder:Fujiwara]]
!!Fujiwara

Kyon believes this name to merely be a pseudonym, so he is commonly referred to as "[[SmugSnake that sneering bastard]]". The most villainous of the group, he is a Time Traveller who believes that TimeTravel actually makes humans slaves to Causality.
----
* BigBad: [[spoiler:Of "Intrigues of Haruhi Suzumiya", and also ends up as "Surprise of Haruhi Suzumiya"'s one too.]]
* EvilCounterpart: To Mikuru as an evil time traveler, but he also closely resembles Koizumi in appearance and action; Kyon himself describes him as literally an "evil Koizumi". He even has some elements of Kyon, being detached from the rest of his group, yet also something of the leader.
* HaveWeMetYet: To Mikuru in Novel 7.
* KilledOffForReal: [[spoiler:Apparently by Itsuki in the 11th book. They fight, an explosion is seen, and then the way people speak of Fujiwara afterward seem to indicate that he's long gone. Of course, given his nature as a time-traveller, there's always the possibility a Fujiwara from a different point in time could decide to drop in...]]
* LongLostRelative: [[spoiler:In Novel 11, it's revealed that Mikuru is Fujiwara's elder sister (well, he claims it to be, but it seems that he isn't her brother anymore due to alterations to the timestream).]]
* KillTheGod: Goes out of his way to [[spoiler:make a ''very'' serious attempt on Haruhi's life]] at the climax of ''Surprise Vol. 2''.
* KnightTemplar: He pretty much drops all claims to well-intentioned extremism after he tries to [[spoiler:[[KillTheGod kill Haruhi]].]]
* NoNameGiven: For a while, he eschews names, and only adopts an obvious pseudonym at the insistence of the rest of the Anti-SOS Brigade.
* ScrewDestiny: He wants to prove that the future isn't dependent on predetermined events. [[spoiler:[[TimeyWimeyBall He's right]]... [[MindScrew maybe]].]]
* SmugSmiler: His perpetual expression is described as "an evil version of Koizumi's smile."
%%* SmugSnake
%%* TimeTravel
* VillainousBreakdown: [[spoiler:In the 11th novel, complete with MotiveRant.]]
* WhamLine:
** During his MotiveRant, to Elder Mikuru: "[[spoiler:I just want you back, big sister]]."
** During the climax of the 11th novel: "[[spoiler: Go kill Haruhi Suzumiya!]]"
* {{Yandere}}: [[spoiler:A brotherly one toward Mikuru.]]
[[/folder]]

* WouldntHitAGirl: Haruhi seriously pushes it, once or twice. While he takes a hell of a lot of pushing for him to get that far, he will hit a girl if he ''really'' thinks that they deserve it. Such as when [[{{Jerkass}} Haruhi]] has been going [[UpToEleven above and beyond]] her [[BlackComedyRape usual abuse of Mikuru]] for days (at this point Haruhi has spiked her drink so that she will [[spoiler:be willing to kiss Itsuki, and possibly more [[ItsAllAboutMe knowing]] [[{{Jerkass}} Haruhi]]]] and is now [[RageBreakingPoint hitting the poor]] ''[[RageBreakingPoint drunk]]'' [[RageBreakingPoint girl over the head repeatedly to try to make Mikuru listen to Haruhi's directions]])) he finally snaps and goes to hit her to teach her a lesson, only failing to connect because Itsuki physically stops him. Everyone is shocked, none more so than Haruhi.

* FullNameBasis: Anyone with a full name is almost always supernatural in some way. The rest get OnlyOneName, if that. The exceptions are Fujiwara, the time traveler who refuses to give his real name and just picks an obvious pseudonym; Sasaki, a girl and old friend of Kyon who can create closed space of her own and has espers of her own; Miyoko Yoshimura, Kyon's sister's friend, nicknamed Miyokichi, who has not manifested any supernatural powers; Nakagawa, Kyon's former classmate and tight end for his high school's American football club, who had the ability to perceive the Data Overmind by looking at one of its interfaces, but mistook it for love when he set eyes upon Yuki; and certain members of the Agency who have not yet manifested supernatural powers but have full names given.

* BlueAndOrangeMorality: Does not understand morality. All she knows is that she wants to communicate, but doesn't know what it actually means to communicate or to fully grasp what other entities are.

* EvilCounterpart: To Yuki. Unlike the other members of her team, she's a straight parallel with only one counterpart. She's pretty much Yuki but without any of her positive qualities and with all of her negative traits taken UpToEleven.

* HumanoidAbomination: She has the appearance of a human girl, but everything about her is described as being very alien and unnatural.

* StarfishAliens: [[spoiler:She does not understand the concept of death, nor that of life and has only recently grasped the idea of language but doesn't seem to know what it's for. Apparently, all she wants to do is talk to people (especially the Integrated Data Thought Entity) but since she goes about it in such incomprehensible ways, it leaves her extremely dangerous.]]

* GoKartingWithBowser: When she isn't stabbing people, she's legitimately kind, empathic and helpful (even if she rags on Kyon sometimes). Kyon even sits down to an extended dinner with her in ''Disappearance'' (partially at Yuki's insistence), and rather manages to enjoy himself despite his paranoia about being knifed out of the blue. The fact that she appears in ''Disappearance'' at all is telling. [[spoiler:Yuki temporarily stole Haruhi's [[RealityWarper Reality Warping]] powers, which means that she very easily could have fabricated a universe where Ryoko didn't exist at all; in fact, she would ''have'' to know how negatively Kyon views her, and this was all done for his sake. That Yuki brought Ryoko back ''regardless'' really suggests that Yuki must see ''something'' redeeming in her and that she isn't just a KnifeNut.]]

%%* KnifeNut

[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/haruhi_suzumiya.png]]
->'''Voiced by''': Creator/AyaHirano (JP), Creator/WendeeLee (EN)

-> ''"I have no interest in ordinary humans. If there are any aliens, time travelers, sliders, or espers here, come join me. That is all."''

An eccentric, [[GenkiGirl hyperactive]] young girl who enrolls in North High in her first year. She starts off the plot by roping in an unwitting Kyon into forming a club with her, the "'''S'''preading Excitement All '''O'''ver the World With Haruhi '''S'''uzumiya Brigade", or the '''SOS Brigade''' for short. Her eccentricity stems from the fact that she can't come to terms with the fact that she's not a special person, so she spends every day trying to look for something out of the ordinary.

In an ironic twist, Haruhi is unwittingly a RealityWarper sought after by several factions who have an interest in her -- the very students which she recruited in her club, and the very people she wanted to look for: an alien, a time traveler, and an esper.

The story essentially revolves around the antics caused by her powers, directly or indirectly, and the CharacterDevelopment which ensues within the SOS Brigade.

* TwentyPercentMoreAwesome: In The Disappearance of Haruhi Suzumiya, Kyon declares that Haruhi's ponytail makes her "36% more charming."
* AcademicAlphaBitch: She gets good grades in all her classes like it’s nothing and believes that she should be in charge of everything.
* AcademicAthlete: She is excellent at P.E. and does her homework effortlessly.
* TheAce: '''Nothing''' is difficult for Haruhi Suzumiya. She outdoes everybody else in every activity she takes part in, be it baseball, academics or performing as a guest singer and guitarist of a band. In a [[PlayboyBunny Bunny Suit]]. Justified due to her RealityWarper powers.
* AdaptationalHeroism: In “The Disappearance Of Nagato Yuki Chan” while retaining a mildly manipulative attitude and blasé outlook towards rules, Haruhi is less selfish and abrasive, and her actions never quite get as heinous as they could be in the original series.
* AdaptationalPersonalityChange: Haruhi is still very excitable and ever-ready for pursuit of the mysterious, but her Jerkass behaviors are dialed back in "The Disappearance Of Nagato Yuki Chan", and so, while retaining her independent Genki Girl and Cloud Cuckoo Lander character, she develops a Big Sister Mentor/Cool Big Sis dynamic with Yuki. In some instances, Haruhi even serves as the Straight Man to Ryōko's antics. Sasaki says that Haruhi comes off as completely different to her classmates at Koyouen, seeming like a model student that everyone looks up to, although she does point out that the way Haruhi seems at North High is in all likelihood her true self.
* AdaptationDyeJob: To an extent. The light novels describe her hair as black, but the anime adaptations give her a dark brown hue instead. The novels's covers and illustrations, however, don't picture her hair solidly black either, which might have been the inspiration behind the change.
* AdmiringTheAbomination: Her reaction when she sees the Celestials destroying everything in the Closed Space.
* AgentMulder: Or she'd like to be. Her inner AgentScully keeps her from [[WeirdnessCensor actually recognizing the weirdness around her.]] When Kyon actually tells her about the truth about herself and the other members, she doesn't believe him at all and scorns him for it.
* AgentScully: While she wishes she could be an AgentMulder, she is ultimately revealed to be this. She remains oblivious to the weirdness she's causing partly through the efforts of Koizumi and company, but also through her buried skeptical streak that prevents her from readily believing the supernatural things she longs for and professes belief in actually exist. Her skepticism is so resilient that in fact even when Kyon outright tells her what's going on, in Sigh, she refuses to believe him, though she claims it's just that his version is "too obvious".
* AllergicToRoutine: She gets bored easily, leading to her changing things up at random.
* AllOfTheOtherReindeer: It’s notable that Haruhi attempts to inflict this trope onto herself. She would distance herself from everyone and constantly belittle them as not worth her attention. Eventually she starts to grow closer to others and loses this status.
* AloofDarkHairedGirl: An aversion. She may fill the aloof and idealized parts with her personality contrasting her good looks and talent making her seem unapproachable and has dark brown (or black, depending on the version) hair, but it's really because she's just too eccentric to connect with anyone else. That is, until Kyon comes along.
* TheAloner: Before meeting Kyon and starting the S.O.S. Brigade, she didn’t have a friend to speak of and showed little interest in any of her fellow classmates or people in general. Later on, she starts to grow more social with others and learns how to empathize with people better.
* AlphaBitch: At the beginning, she viewed everyone else as beneath her, and treated her brigade members as if they were property rather than actual people. She stops being this to some degree after CharacterDevelopment sets in.
* AlwaysSomeoneBetter: Zigzagged. At first it appears that [[TheAce Haruhi]] was the better to literally everyone else at literally everything, whether it be sports, academics, music, etc. However, it’s never made completely clear how much of this is natural talent and how much of it is a byproduct of her RealityWarper abilities. At the very least, Kyon is certainly the better to her whenever it comes to empathy. [[spoiler: Yuki is also shown to be better at her whenever it comes to actively using and controlling Haruhi’s own powers after she obtains them, though she had the benefit of knowledge.]]
* AmbiguousDisorder: Haruhi has displayed a number of traits that could be associated with a number of mental disorders, though nothing has ever been confirmed. Some of these include, [[ManipulativeBitch skills at manipulating others]], LackOfEmpathy, [[DidntThinkThisThrough impulsivity]], [[ControlFreak a constant need to control others]], [[{{Narcissist}} extreme narcissism]] and a [[HairTriggerTemper short temper.]] Whether she’s just anti-social, suffering from bipolar disorder, or borderline genuine sociopathy is anyone’s guess.
* AmbiguouslyEvil: Back whenever she was arguably a VillainProtagonist, it was somewhat unclear just how much of her behavior was active maliciousness and how much of it was due to her [[BlueAndOrangeMorality warped mental state]], bordering on possible sociopathic disorder. As she’s softened up, in the present day, it’s also not entirely clear just how she would react to discovering the true nature of her powers, but the general consensus is that it [[TheEndOfTheWorldAsWeKnowIt wouldn’t be good for anybody.]]
* AmbiguouslyHuman: It’s been a subject of much debate both in and out of universe just what Haruhi actually is. Some believe her to actually be the {{God}} of her world, others believe that she’s just an extremely powerful human girl. Regardless, the fact that Yuki’s alien overlord could only interpret her as someone who “creates data” and nothing more clearly indicates that she is not normal.
* AmbiguousSituation: Numerous points, but these are the two biggest: One, is she really God as Koizumi suggested early in the story? She seems mortal enough and it's implied she didn't always have her powers. However, is that really a meaningful question considering her implied omnipotence? Two, did she [[spoiler:rewrite the universe]] at the end of the first novel/season of the anime? Even the characters in-story don't know.
* AmbitionIsEvil: “Evil” is a bit of a strong word for her [[AmbiguouslyEvil maybe]]. But her competitive nature and drive to outdo everyone and be the best at everything she does is definitely what brings out her most negative traits.
* AntiHero: Initially, at her worst, Haruhi could really only be considered a hero by her association with the main character. Even ignoring the existential threat to the entire universe she unknowingly possesses, Suzumiya has done some truly rotten things of her own volition. She routinely sexually molests a female classmate. She blackmailed the computer club into giving up a brand new computer, threatening to mark them as rapists using falsified evidence. She delivered a flying kick to the president of the same club with almost no provocation. She tricked an underage classmate into drinking alcohol without her consent. Not to mention her complete lack of awareness of the personal views and emotions of the people around her, or the hell she puts them through. On the other hand, as CharacterDevelopment kicks in Haruhi dose some admirable things. She volunteered to fill in for the missing bandmates of the school music club so the seniors could play in their last school festival. For all the pain she causes, she happily accepts requests to find missing people, solve the mystery of sick dogs, or to believe a person with an unlikely story about a parallel universe. The later novels went into this more than the anime, but her subconscious traits have a positive side. Her friends and the power she gives them are beneficial; they fight to protect the world and the lives of people, often from threats that did not originate from Haruhi. This is in sharp contrast to the counterparts they eventually encounter, who engage in kidnapping and attempted murder to carry out their missions. [[spoiler:A particularly dire threat to the world is thwarted by Haruhi herself, who subconsciously creates an alter ego aware of her own powers. Wrap your mind around that one.]]
* TheAntiNihilist: Whenever she was little, she realized just how small and insignificant she was in comparison to the grand scheme of the world and that she, like most people was living a very ordinary and uneventful life with nothing that made her special, [[spoiler: at least as far as she knows.]] It was this revelation that inspired her to make her life as extraordinary as possible and carve out a unique meaning for it.
* AntiVillain: Haruhi as a person is quite awful in terms of personal respect and to a peaceful society. She can’t personally be blamed for it, but her powers are an extreme threat to everything, and frequently manifest in destructive and corruptive forms. From this perspective, she is a villain on both a petty and macrocosmic scale. Yet, Haruhi does what she does not out of a sense of malice, but a deep personal desire to find something extraordinary hidden in a boring world. Over the course of the years she grows from an unhappy, selfish, socially isolated individual to having friends, being content with the excitement found in a normal universe, and interacting with people in a more positive way. The series is vague about the nature and extent of her powers, but it is implied that there are other, worse forces around, which she fights against.
* AwLookTheyReallyDoLoveEachOther: Often has these moments with Kyon or Mikuru. [[spoiler:Has a subtle but serious one when Kyon accidentally travels a few years into the future in ''Surprise''; the now college-age Haruhi smiles at him [[ShipTease in a way the current Haruhi never has]], making him "dizzy". The moment is interrupted by future-Kyon calling out to her.]] This moment is particularly noteworthy in that at the end of "Wandering Shadow", [[spoiler: Kyon speaks of having arbitrarily received a book from Nagato about the romance of a boy and girl transitioning from high school to college together, his thoughts simultaneously referencing Nagato's "fortune telling" abilities.]]
* BareYourMidriff: She does this a lot particularly during [[BeachEpisode warm weather]].
* BeCarefulWhatYouWishFor: As a natural consequence of her DidntThinkThisThrough attitude, Haruhi sometimes finds herself with results that she really didn’t want as a result of her actions. A notable example is during the club trip, where her constant desire for some kind of mystery to solve leads to a mystery surrounding the murder of the mansion’s master.
* BelligerentSexualTension: That's the whole point of the Kyon/Haruhi ship. Haruhi's a JerkWithAHeartOfGold, Kyon's a {{Tsundere}} who wouldn't dare beat up the universe's equivalent of a deity. [[OOCIsSeriousBusiness Usually]] [[RageBreakingPoint wouldn't dare.]]
* BeneathTheMask: Haruhi's jerkish, emotionally distant, surface hides a much more cheerful, kinder, and sometimes even humbler girl on the inside. Her actions during the ENOZ concert and her reaction the following day, shows her capability for compassion whenever she really feels like showing it.
* BerserkButton: An upskirt directed at Mikuru, be it ever so accidental, has set her off at least once. Also, when she sets a specific time for you to show up for one of her club's events, she absolutely expects you to be on time, even if she sets a ridiculous time limit of 30 seconds.
* BeyondTheImpossible: Haruhi’s powers defy and warp reality in ways that aren’t natural and she isn’t even aware of it.
* BigEater: Though not seen on-screen, the quantity of food she consumes impresses Itsuki. She even develops a tactic for hitting the cafeteria: arrive near the closing time to get all the leftover for free.
* BigGood: Her status as TheLeader of the S.O.S. Brigade makes her this on the micro scale, and her being the reason that the other cast received their powers and were brought together in the first place also makes her this on macro scale.
* BigSisterInstinct: As time has gone on, she has developed this for all her fellow members of the S.O.S. Brigade, but especially towards Yuki. When she thought Yuki had gotten sick, she insisted on carrying her (over Nagato's own protests). She also defended Yuki's Literature Club from the Student Council President, and when she got sick, Haruhi ordered the Brigade to report to her apartment daily to take care of her.
* BlackAndWhiteInsanity: Initially, Haruhi is incapable of believing that she could ever be wrong about something. If anybody ever disagreed with her, it was simply because they weren’t as knowledgeable about something as she was. This quickly proved to be very harmful in a series that has more White and Gray Morality.
* BlackComedyRape: While it doesn't go so far as outright rape, her constant groping and molestation of [[ReluctantFanserviceGirl Mikuru]] is almost always PlayedForLaughs.
* BlackHoleSue: An in-universe deconstruction. The plot ''literally'' revolves around her, but because of her SelectiveObliviousness she never really seems to figure this out. Considering [[GoMadFromTheRevelation one of the possible scenarios should she ever find out about her powers]], this is probably for the best. It can also be theorized that the universe essentially bending over for her is what caused her screwed up personality in the first place.
* BlankFaceOfShame: This happens to Haruhi when she leaves after witnessing Kyon saving Mikuru's pictures. Also annoyingly subverted because she immediately walks into Mikuru, who ''can'' see her face and quickly reacts.
* BlessedWithSuck: As the novel series has continued it has been hinted that Haruhi herself is entirely an innocent victim of Cursed with Awesome that Kyon has imposed on at least two instant goddesses.
* BlueAndOrangeMorality: Haruhi appears to be incapable of realizing that other people have feelings besides her own, and in general bases most of her decisions off of whether something will be either exciting or boring to her.
* BookSmart: She gets excellent grades without any real effort.
* BoyishShortHair: At the beginning of the series, her hair is long and reaches to about her waist. However, after a talk with Kyon about her hair, she cuts it to just about her shoulders. This is an indicator that she cares about kyon’s opinion as well as a way to further reflect her tomboyish personality.
* BrainyBrunette: Good grades, brown hair.
* BreakTheCutie: While Haruhi is closer to a BrokenBird she still has elements of this as well. She learns, rather painfully, that she isn't all that special, and in her quest to make her life special, goes on the hunt for aliens, time travelers and ESPers after some inspiration from Kyon. This leads to her general sociopathy, and her obsession with cosplaying Mikuru. A good part of the plot is her [[HealTheCutie learning how to be a good person again,]] as noted by Kyon.
* BreakTheHaughty: A major part of Haruhi’s development is learning that she can’t keep being so arrogant and controlling and expect people to want to listen to her.
* BrokenAce: Haruhi is very attractive and athletic, gets excellent grades, a superb cook and is generally good at everything except normal human social interaction, an area in which she seems ''horrendously'' lacking -- she knows about it, but doesn't see the point. She's also utterly frustrated and unsatisfied with her life. She gets better in later books after character development, with Kyon even noting how she has become more sociable to their classmates in general, not just the SOS Brigade.
* BrokenBird:
** One that manifests her disillusionment at the world through cheery obnoxious behavior.
** She appears to be one when Kyon first sees her in the alternate world in the ''Disappearance'' film. While she seems normal, you can clearly tell she's not very happy with life.
* BroughtDownToNormal: [[spoiler:After Yuki rewrites reality, not only is Haruhi turned into a normal human, but she also gets PutOnABus for a time.]]
* BrutalHonesty: Unless it's related to her Tsundere traits, never expect Haruhi to hide how she really feels about something.
* TheBully: Until about halfway through, she was definitely this character type. She constantly bullies [[ExtremeDoormat Mikuru]] for her own amusement and for fanservice.
* BullyTurnedBuddy: She becomes this for pretty much every member of the S.O.S. Brigade, but especially towards Kyon and Mikura who arguably got her initial treatment the worst.
* BunnyEarsLawyer: Despite being an unstable {{Cloudcuckoolander}}, she ''is'' fantastic at almost everything, and people acknowledge it. She really shows her class, when it comes to things that have nothing to do with the SOS Brigade activities, [[spoiler:as Kyon points out in the first chapter of Vol. 10.]] And she actually does wear [[PlayboyBunny bunny ears]]!
* ButForMeItWasTuesday: Everyone remembers Haruhi's KickTheDog moment against the Computer Club president. Yep, everyone... except Haruhi herself.
* ButNotTooBi: She makes it very clear right from the start that she doesn't care about the gender of the one she is with, as long as they're not an ordinary human being. However, aside from her fixation on Mikuru (which isn't treated seriously, since it's largely PlayedForLaughs and {{Fanservice}}), she doesn't really show any romantic interest in other girls, and it seems as though only boys have confessed to her.
* ByronicHero: She’s very intelligent, charismatic, and passionate about what she does, but is also very difficult to get along with and has very few people she shows her softer side towards.
* CantActPervertedTowardALoveInterest: Since Haruhi is usually a ShamelessFanserviceGirl, it's significant when she starts kicking Kyon out of the club room when she changes. Also, when they get drenched by the rain and have to duck inside a cave for shelter in "Remote Island Syndrome", she and Kyon are both shown taking off their shirts and shorts to wring them out. Haruhi also begins to do this with her bra, but stops before unfastening it. Even though she and Kyon are separated by a rock wall and he can't even ''see'' her.
* CantGetAwayWithNuthin: Haruhi constantly seeks to avert this, whose main specialty (considering the non-awareness of her own powers) seems to be beating this trope to death and beyond.
* CantTakeCriticism: She is so enamored with her own perceived perfection that anyone who dares to say that she is wrong can rarely get through to her.
* CareBearStare: Double-Subverted. After Kyon laments that he'd like to have even a bit of Haruhi's super-confidence, she gives him a '''DeathGlare''' and then supposes she has sent "warm energy" into Kyon's body. Kyon, in his usual [[DeadpanSnarker snarky]] attitude replies "I felt like my life was in danger.." Nothing else more completely illustrates how out-of-touch Haruhi is with [[spoiler:her own [[RealityWarper nigh-omnipotence]].]] Interestingly, once the battle started, he got into the game to the point that he was shouting his attack orders at the computer. Wouldn't Haruhi think it a bit strange if Kyon had immediately burst into full hot-blooded confidence as soon as she stared him down? [[FridgeBrilliance A delayed reaction?]]
--> '''Itsuki''': It sounds like someone's getting serious about this game.
* {{Catchphrase}}:
** "I'm so bored!"
** Another one gets Lampshaded but ultimately subverted — in the first episode, Kyon notes that Haruhi has a habit of saying "totally", but the audience doesn't hear it enough for it to qualify as a Catchphrase.
* CelibateHero: In the first book, Haruhi says that while she is a "healthy young woman, after all," she doesn't have time for sex, what with trying to find the people right in front of her.
* CharacterAsHimself:
** Haruhi Suzumiya is credited as the ''director'' of the ''LightNovel/HaruhiSuzumiya'' anime. And not just director, but '''[[LargeHamTitle Ultra]]''' Director, as in her ShowWithinAShow.
** The series composition of the anime is also credited to "Haruhi and her friends". In "The Melancholy of Haruhi Suzumiya VI", that credit shows ''right before'' [[LeaningOnTheFourthWall Kyon wonders if Haruhi "wrote this scenario"]].
* CharacterDevelopment:
** Haruhi starts off as a self-absorbed, misanthropic loner, and later goes to a cheerful and hot-blooded, yet still quite sociopathic jerk who doesn't really get what she's doing wrong... which can still technically be considered an improvement.
** In the later novels, she has become far more sociable, even to strangers.
** In general she has also come more to terms with "this boring world" (and has come Out of Focus).
** "We're not going to use your body to pay for what we need this time."
** She also becomes more patient with other people.
** During "Snow Mountain Syndrome," Kyon is surprised that she noticed he's been paying more attention to Yuki.
** In “The Disappearance Of Nagato Yuki Chan”, her negative attitude about romance diminishes, becoming a Shipper on Deck for Kyon and Yuki. By the epilogue, she pointedly did not give her usual anti-romance spiel in response to Koizumi’s Love Confession, but a challenge to make her fall for him.
* CharacterTics: Haruhi has her famous "hairflick". Though this is only portrayed in the anime.
* TheCharmer: Despite her abrasiveness, Haruhi has shown herself to have a knack for convincing others to do what she wants through a variety of different social techniques. In spite of her weird personality she still has people who are willing to follow her and stay by her side out of loyalty due to her overwhelming personality and sheer charisma.
* ChildishPillowFight: Haruhi is shown to be extremely good at this during a club trip. Just before the murder mystery starts, Haruhi throws one into Arakawa's face unerringly. The Mood Whiplash is quite hard, especially if you haven't read the light novels.
* ChildProdigy: Haruhi is less than the age of eighteen, and is already smart enough to finish all her home work in two days at the start of a vacation.
* ClassicalAntiHero: As Haruhi slowly overcomes her more glaring character flaws, she slowly transitions out of less of being an outright AntiHero, and more into this territory, wracked with feeling unimportant and “boring” in the grand scheme of things and learning how to better connect with others.
* ClingyJealousGirl:
** Not really an example of one on the basis of her behavior; the most she's ever done is get annoyed and frustrated when Kyon pays too much attention to Mikuru. This is especially evident in the ninth volume where after being introduced to [[spoiler:Sasaki, aka that weird girl Kunikida have been talking about, she started an outbreak of Closed Spaces]]. In Snowy Mountain Syndrome, she goes after Kyon for paying too much attention to Yuki, and she won't let his own sister stay with him.
** During the baseball game in the anime, this trope is used subtly. After changing into cheerleader outfits, Haruhi holds Mikuru's hair in a ponytail style and wonders if she would look cuter this way. Then she quickly glances at Kyon, and remembers that he has a ponytail fetish (at least that's what he told her), groans a little, then decides against the idea.
** In the episode "Melancholy of Haruhi Suzumiya III", she gets rather annoyed when Kyon gets picked to go with Mikuru during the toothpick drawing, and angrily tells him they'd better not act as if on a date. Later on, she has a very disgusted look on her face when Kyon and Nagato get chosen to go searching for stuff together. A few episodes later, it's implied that Haruhi will sometimes go to extreme measures, even Closed Space, if that's what it takes to cockblock Kyon and Mikuru.
* {{Cloudcuckoolander}}: Kyon lists off the "Haruhi Eccentricities Numbers 1, 2 and 3" in the first episode. One of these is a different hair style every day because she has to express the color of each day in its own way. She slowly tunes these tendencies as the novels go on [[spoiler:and appears to have completely settled down into a open, friendly girl in the flash forward sequence of ''Surprise'']]
* ClubPresident: Invoked by herself.
* ColorMotifs: Red, which serves to demonstrate her genkiness, passion, and her status as leader of the S.O.S. Brigade.
* ComedicSociopath: Sexual harassment? Check. Regularly abuses her best friends? Check. Blackmails people with photos of scandalous events she orchestrated? Check. Abducts people just because she thinks they're interesting? Check. Treats people as objects and is generally incapable of comprehending the fact that other people possess feelings that differ from her own? Check.
** While the series itself treats these actions as comedic, characters within the series (especially Kyon) see it as incredibly selfish and annoying... so part of the comedy comes from their reactions to Haruhi's antics.
* ComfortingComforter: In the episode "Someday in the Rain" Kyon wakes up in the clubroom with two cardigans over him. Haruhi demands hers back, but the owner of the second is up to the shippers. Haruhi doesn't show her sweet and gentle side often, but when she does, she can be kind and nice, even if she'd never openly admit to it.
* CompetitionFreak: Haruhi sees virtually everything as a competition, partially as a way to prove her own superiority over another. Merely saying the word is enough to get her to come running.
* ControlFreak: She is incredibly bossy, expecting everyone else to follow the whims of what she believes and wants.
* ComplimentBackfire: Every attempt to compliment her fails and she can't stand criticism so she winds up in the arms of the SilentSnarker.
* CoolBigSis: Whenever she isn’t mistreating them or bossing them around, Haruhi is capable of fulfilling this role towards her fellow S.O.S. Brigade members. It becomes more apparent as she becomes more of a TeamMom towards them as well.
* CoolPeopleRebelAgainstAuthority: Surprisingly downplayed. Haruhi doesn’t actively seek to break rules, she merely does so if they will bring excitement to her life. Of course given that it often does, for the most part Haruhi doesn't listen to anything or anybody, instead much preferring whatever she wants to do at any given time.
* CosplayOtakuGirl: Not your typical {{Otaku}}, but the girl loves her costumes. And her {{anime}} {{Shout Out}}s.
* CruellaToAnimals: Unfortunately, her bumbling henchman Kyon can't figure out how to get 101 hamsters.
* CrucifiedHeroShot: [[spoiler:Gets one at the hands of Kuyo near the end of ''Surprise Vol. 2''.]]
* CryCute: In the anime rendition of the incident where [[spoiler: Kyon almost beats her for going WAY too far in her mistreatment of Mikuru]], she ultimately stops arguing and almost start to cry.
** Briefly but genuinely sheds tears near the end of the manga adaptation of 'Disappearance' when [[spoiler: Kyon regains consciousness in the hospital three days after sustaining a heavy blow to the head.]] The tears are extra cute for coming right as she is trying to act tough by delivering a RousingSpeech after [[spoiler: Mikuru starts crying before her.]]
%%* CrystalDragonJesus: And just like in Christianity, debates rage over her nature as God and girl.
* DeconstructedCharacterArchetype: Haruhi serves as this for the GodModeSue. The universe literally bends around her to ensure that she always gets what she wants, and she is on a fundamental level much more powerful than anyone else in her story could ever hope to be. Not only does this make her an arrogant {{Jerkass}} who is fully convinced that she can do no wrong, but also leaves all the other weaker people around her secretly terrified of her and scheming to make sure that she never discovers the true nature of her powers.
* DecoyProtagonist: Despite her being the title character and the person the story revolves around, Kyon, at volume 4 onwards, is clearly TheHero and he is only the SupportingProtagonist in the sense that the reasons for some of the strange stuff that happens is because of her emotional state.
* DefrostingIceQueen: Happens in two stages ([[spoiler:And we see a compressed version of it again in Disappearance]]). She starts off as a traditional IceQueen, defrosts into a {{Jerkass}} and gets [[CharacterDevelopment nicer]] from there.
* DepravedBisexual: In Kyon's own words: "IS STRIPPING ASAHINA NOT ENOUGH FOR YOU, YOU PERVERTED GIRL?!"
* DesperatelyLookingForAPurposeInLife: Haruhi's titular melancholy comes from the fact that she's desperate for something so fun and exciting that it'll shake up her life. She's joined every club, dated every boy who asked her out (however briefly), and never lasted more than a week with anything but the SOS-dan, which she started herself. The irony here is that the things she's searching for are right there, and trying to keep her from finding out.
* TheDeterminator: If this girl wants something, she’ll do everything she can to get it and there’s nothing that anyone can do to deter her. In fact, trying to stop her will likely [[CompetitionFreak just make her want to get it more.]]
* DidntThinkThisThrough: One of her defining traits for better or worse. Due to her eccentric personality and desire for a constant thrill, Haruhi often jumps straight into things with little thought given as to what their natural consequence could be. Sometimes this actually results in something good, like performing on stage during a cultural festival, or bringing the S.O.S. Brigade together at all, but other times it can create serious problems.
* DidYouJustFlipOffCthulhu: Gets a detention early on following the PlayboyBunny incident (not for dressing as a PlayboyBunny in the first place, as she later dons the exact same outfit without interference, but for deliberately traumatizing Mikuru in the process; it didn't help that Mikuru was a second-year at the time, while Haruhi was a first-year).
* DisproportionateRetribution: Haruhi has a habit of dishing out punishments that aren’t exactly equal to her perceived offenses. Show up somewhere late? The penalty is “death.” Refuse to give her one of your computers? She fakes you committing sexual harassment and takes pictures of it as blackmail. Lose at a baseball game? She literally almost causes the end of the world.
* DitzyGenius: For a girl as smart and generally talented as she is, Haruhi is capable of being incredibly dense at times:
** The Day of Saggitarius showed that Haruhi is no Patton — she puts so much emphasis on being Hot-Blooded that she seems genuinely perplexed and irritated that "All ships charge!" is not an adequate strategy to win a tactics-based computer game.
** So-called "Ultra-Director" Haruhi Suzumiya couldn't direct her way out of a wet paper bag (see above for her inability to even grasp a concept as simple as The Climax) and "The Adventures of Asahina Mikuru" shows it. She thought it was brilliant; everyone else was... less enthused. At one point she fails to comprehend why characters always die at the climax of a story, and another time she complains that crabs didn't evolve softer shells so she could eat them easier. She also fails to realize that wearing a Playboy Bunny outfit at school would upset the teachers. Its only redeeming grace is Kyon's glorious narration. Yet Haruhi, without a trace of irony, proudly declares that it's worthy of an Oscar! Whether she's simply so arrogant that she thinks that ANYTHING she does is guaranteed to be genius, or whether her taste is simply so bad that she honestly believes this is impossible to tell.
** And then there's her general Insane Troll Logic, such as pointing out that Tanabata wishes will take years to reach their destination due to the speed of light delay, but expecting that Orihime and Hikoboshi will be able to ignore the lightspeed barrier because they're gods.
* DivineDate: Haruhi Suzumiya is forcefully romancing Kyon, who isn't quite sure who he wants. The twist is that she doesn't know that she's a Little Miss Almighty Reality Warper, and everyone else wants to keep it that way.
* DoesNotKnowHowToSayThanks:
** She doesn't know how to apologize or thank anyone. However, at one point, Kyon tells her that her the one time he saw her in a ponytail it was "so cute it was criminal," and from then on whenever she really screws up, she puts her hair in a ponytail in the next scene, since it's the only way she can apologize.
** She doesn't know how to accept gratitude either. After the concert in "Live A Live", she is thanked quite nicely by the band she helped out, and, though she handles it well in person, later feels disturbed and antsy for no reason she can think of. Kyon believes it's because the antics she usually gets up to are not the sort of things people would thank her for.
* DoesNotLikeMen: Haruhi was like this at the beginning, though she mainly doesn't like humans in general. Half of the time she barely acknowledged that men exist, or that there's some difference in social behavior between boys and girls.
* DoNotTauntCthulhu: Is often on the receiving end of this trope without her even realizing it. Everyone who knows how her powers work knows to tread lightly around her as significantly angering her could lead to the death of them or maybe even the entire world.
* DoubleStandard: Haruhi is way nicer towards Itsuki than to Kyon, and never gives Kyon credit for what he does, but congratulates Itsuki for everything.
* TheDreaded: While they try their best to keep it hidden, the other members of the S.O.S. Brigade are very wary of Haruhi knowing who she is, and what she is capable of. They genuinely believe that their efforts to deceive her are the only thing that is preventing TheEndOfTheWorldAsWeKnowIt.
* DressHitsFloor: Done with her Kouyouen uniform in ''Disappearance''.
* DrivingQuestion: What is Haruhi Suzumiya? Where do her powers come from? What exactly happened during the mysterious event three years ago that drew most of the SOS Brigade members to her?
* DynamicEntry: Haruhi has a habit of making these, one notable example is just before accepting the Computer Research Society President's challenge, she delivers a leaping kick to the head.
* EasilyForgiven: Kyon still forgives Haruhi easily after she drugs Mikuru and he almost punches her for it. This was her beginning path towards Character Development and he partially did it to avoid the universe being destroyed, although Haruhi didn't apologize for what she did.
* EldritchAbomination: It is theorized by some characters and very likely that if Haruhi ever discovers her powers, she will ascend beyond merely being a HumanoidAbomination and become this. She may already be heading that way now, given that Yuki’s alien overlord was unable to grasp her true form.
* EgocentricTeamNaming: At first, it doesn’t look like Haruhi did this with her SOS Brigade... until you expand the acronym and find that the second S stands for Suzumiya.
* TheEndOfTheWorldAsWeKnowIt: What the other three members of the SOS brigade fear would happen should something drastic happen, particularly to Kyon.
* EstablishingCharacterMoment: Haruhi's very first line cements her character: "I have no interest in ordinary humans. If there are any aliens, time travelers, espers, or sliders, come join me. That is all."
* EvenTheGirlsWantHer: May have occurred in "Snowy Mountain Syndrome", when the Brigade members are confronted with hallucinatory versions of the people that they fantasize about the most, Haruhi is revealed to be [[spoiler: Mikuru's]] fantasy. Then again, which hallucination appears to which Brigade member is actually [[spoiler: a formula worked out by Nagato to provide a clue to help them escape.]] Koizumi [[spoiler: [[HoYay sees Kyon]], and admits to being [[AlternateCharacterInterpretation rather disturbed]] by the double's behavior.]] Sasaki has some LesYay towards her as well.
* EveryoneCanSeeIt:
** Haruhi likes Kyon, no matter how deep in denial he is about it. This is so obvious that alternate!Itsuki in Disappearance can tell just from Kyon's cursory explanation of how things were back before the world-switch.
** Sasaki figures it out immediately when meeting Haruhi. She then teases them about it.
* EvilLaugh: Emits a creepy-sounding chuckle in "Snowy Mountain Syndrome" after learning how her rebellious spirit blindly shuns the mainstream in favor of the obscure. She also delivers a menacing laugh in "The Melancholy of Mikuru Asahina" as she reveals she may have a lead on what Kyon and Mikuru were up to in that story. Keep in mind that both times are ''after'' she makes her HeelFaceTurn.
* EyeBeams: In Sigh, Haruhi keeps coming up with colored contact lenses that each have a different type of eye beam. First is a laser, second is some sort of Razor Floss; Kyon states there are a few more, but the one we're shown shoots large metal spikes. The official English translation mentions four contacts: the blue, for Mikuru Beam; the silver, for Razor Floss; the gold, for the spikes up above; and the green, for miniature black holes.
* TheEeyore: Haruhi's inner workings appear to be quite this at or before the beginning and episode 6 particularly. Being fed up with the boring world, just wishing for something interesting to happen when it just doesn't seem to happen, despite her efforts. In the end (or rather in the middle), she's so frustrated she subconsciously begins to destroy the universe and create a new one. Of course, most of the time she's a genuine Genki Girl.
* TheFace: Of the SOS Brigade and always out to promote it. Kyon notes that she 'knows how to get answers' peacefully from the apartment keeper during the investigation of Asakura's disaperance. She knows how to be social and charming, but she doesn't know why anyone would do so. Even after CharacterDevelopment, she retains her belief that courtesy is for the boring. Thus, in practice the trope is inverted as she either steams rolls people with blackmail and/or her personality, if she's not outright ignoring them--meaning the earlier incident at the apartment, among her nicer moments chronologically, before the end of ''Sigh'', would likely fall under PetTheDog.
* FantasticRacism: Haruhi initially displayed this towards her own kind, wanting nothing to do with regular “boring” humans. [[spoiler: Of course there’s the possibility that [[AmbiguouslyHuman Haruhi]] [[HumanoidAbomination may in fact not be human at all]], so the racism may not be directed towards her own kind after all.]]
* FatalFlaw: While Haruhi excels at nearly everything she does, this simply makes her personal flaws more apparent.
** The fact that her powers lead to her continued success has made her into a spoiled brat, who thinks that she always knows best and that everyone should have to do what she says.
** She’s also a terrible bully and loses it when she doesn’t get her way.
** She always jumps into what she wants to do whether it’s good or bad in the long term. If it’s good, no problem. But if what Haruhi wants is bad, the others have to stop her. And because she’s a bully, she will always resist being stopped.
** Another source of conflict is something that Haruhi isn’t willing to admit: she wants to be loved. Specifically, she has a crush for Kyon, however her own aggressive nature always pushes him away until he feels that he has no choice but to reciprocate the feelings.
** She is also likely the most powerful person in her entire universe, but constantly remains blissfully unaware as to just how powerful she really is.
* FauxActionGirl: Invoked in-universe. She can deliver a flying kick to the head to the ChewToy, but she can't be called on to help with the fights that are being kept from her because...''they're being kept from her.''
* FirstNameBasis: With Kyon, though [[OnlyKnownByTheirNickname it's not his real first name]]...It's more a Japanese cultural thing; it's perfectly normal for teenage Japanese girls to refer to one another by their given names but to boys by their surnames. More of note is the fact that, whereas she uses affectionate honorifics for the other Brigade members ('Mikuru-chan', 'Yuki-chan', 'Koizumi-kun'), which indicates some degree of closeness but is still fairly unremarkable given Haruhi's GenkiGirl personality, she refers to Kyon with no honorific whatsoever, which, particularly for a girl, indicates a remarkable degree of intimacy, similar to the traditional FirstNameBasis in English.
* {{Foil}}: Arguably the whole point of the Haruhi/Kyon relationship is how their opposing personalities come to a balance:
** Kyon and Haruhi have such opposing character traits, philosophies, attitudes, etc., that there are significant amounts of Wild Mass Guessing supposing that they are some sort of "foil-power". Or Haruhi chose Kyon exactly because he balances her out. Or opposites just attract. Or they are gods of chaos and order. Pick one, if you like.
** Kyon and Haruhi are foils to each other, but their characters are more complex than these arguments suggest, and the foil is correspondingly more elaborate. Kyon is always going on and on about how he'd like an ordinary world, yet he's secretly delighted at the fact that there are aliens, time travelers and espers. Haruhi acts like she's completely convinced that aliens, time travelers and espers exist, but this is a form of denial of her skepticism that they do, and a way of avoiding her disappointment at the ordinariness of her life.
** However, when you add Sasaki, it looks more like Haruhi and Sasaki are foils whereas Kyon is the middle ground. Haruhi believes in the supernatural and represents chaos but also creativity, freedom, spontaneity and change. Sasaki believes in logic and opposes emotions while representing order but also conformity, oppression and stability/consistency. Also, although both of them see love as merely a mental illness, while Haruhi is attracted to both guys and girls, Sasaki claims to have never felt anything of that sort.
** She's also a foil to Mikuru in at least two ways.
** And don't forget Yuki, who unlike Haruhi, is cool and silent.
** Can also foil Itsuki, who is wise and calm, while she's more impulsive and reckless.
** To Ryoko, who seemed bright and bubbly, unlike Haruhi, the Aloof Dark-Haired Girl. And Ryoko is the true evil psychopath while Haruhi is a heroic normal girl deep down.
* ForgotTheCall: There are scenes that indicate that Haruhi is up against a mental block as opposed to just being totally clueless. Note how something stops her in midstream here: "I'm the brigade chief and director and ... Anyway, I won't allow you to go against me!"
* FriendlessBackground : Kyon is her first friend ''since elementary school'' according to Taniguchi. [[spoiler: The other brigade members warm up to her eventually, but Kyon is still the only one who wasn't ordered by a superior]]. In her case, it's by choice, since she isn't interested in ordinary humans. The change after she makes a friend is [[DefrostingIceQueen pretty impressive]]. Even after the Brigade start to know her on a personal level, Kyon is the only one of them who ''trusts'' her on a personal level.
* FriendToAllChildren:
** She appears to love kids and enjoys playing with them, as evidenced by her antics during Endless Eight. She is clearly fond of Kyon's little sister, who likes her back in return.
** In the novels, it's revealed that she tutors an [[spoiler:elementary school boy who just happens to be the future inventor of time travel.]]
* FunWithAcronyms: The SOS Brigade's full name is Spreading Excitement all Over the World with Haruhi Suzumiya Brigade, or Spreading Cheer to Our Student Body Brigade according to Kyon.
* {{Gainaxing}}: Very evident in the opening credits of Season 1, and during her cameo in ''Anime/LuckyStar''.
* GenkiGirl:
** Interestingly this only happens when she first meets/talks with Kyon. When we're first introduced to her, she just seems like a weird girl, but after Kyon feeds her the idea of starting her own club, she suddenly perks up and gains a lot of enthusiastic energy, invoking this trope (and probably one subtle reason why she likes him).
** Further, in the ''Disappearance'' film, when we first see Haruhi, she has almost the same dejected personality prior to Kyon's talk in the series. After talking to her and Koizumi a little in the cafe, she suddenly starts to perk up and act the same exact way as old world Haruhi.
* GenreSavvy: Haruhi sees everything in terms of TV and anime tropes, even where they might not otherwise have been. She borders between being a wrong and being an accurate Genre Savvy. Since she is an all-powerful Reality Warper with unstoppable willpower, she actually makes herself become accurate.
* GirlishPigtails:
** Haruhi invokes this with Mikuru's waitress Cosplay outfit, in order to enhance the Moe in Mikuru's look.
** Haruhi herself, before cutting her hair, also used to wear pigtails on occasion when she entered North High, as part of her routine of changing hairstyles according to the day of the week.
* GivingSomeoneThePointerFinger: She does this a few times in a non-homage context, because she's loud, brash, and doesn't care about personal space.
* {{God}}: Zigzagged and ambiguous, but still implied. Itsuki Koizumi theorizes that Haruhi is God. She possesses godlike abilities, true, but he's not completely sure that she's actually the creator of the universe, just noting it as a possibility. However, he's a bit biased, being an esper who received his powers from Haruhi; the time travelers and aliens are quite firm that despite Haruhi's powers, she is not God.
* AGodAmI: Subverted and/or reversed: the character with godlike powers, Haruhi, has no idea she has them. Her delusions of grandeur are just that.
* GodModeSue: An in-universe deconstruction of the trope, as she has the powers to make ''everything'' happen but her personality works against it. The main reason she gets away with as much as she does is because people who are aware of her power are too terrified of the damage she could cause to stop her.
* GodIsDumb: She has no idea what she's doing to reality.
* GoMadFromTheRevelation: It has been strongly suggested that if Haruhi ever discovers the true nature of her powers, that this will be the end result for her and TheEndOfTheWorldAsWeKnowIt for everyone else.
* GoodIsNotDumb: Zigzagged. She aces all of her classes as though they are nothing, and appears to be able to convince anyone to do just about anything she wants through a variety of different social techniques, but also appears to be lacking in common sense when it comes to some areas.
* GoodWithNumbers: She has been shown to do well at all of her subjects in school to the point that she was able to complete all of her homework in just two days over a vacation and was able to calculate that the people at her first baseball game was just a small percentage of Japan's population.
* GreenEyedMonster: As Haruhi realizes her feelings for Kyon, she becomes more jealous over him. To what extent? When Haruhi sees Kyon wrestling with Mikuru over a computer mouse, she becomes jealous and literally creates an alternate reality (a closed space) in which she and Kyon are the only inhabitants, so that she can have him all to herself.
* GroundhogDayLoop: Haruhi causes one to occur during the Endless Eight arc. Haruhi, who has godlike powers, (though she is kept forcefully unaware, due to others fearing what a person like her would do should she realize she has such abilities) wishes at the end of the summer break that summer would never end. This accidentally causes a continuous loop of the previous two weeks every time she makes the wish. Which she ends up doing 15,532 times. Each time, only Yuki completely retains total memory of the previous loops, while the others, except for Haruhi, suffer from déjà vu, eventually all figuring it out the situation, except for (obviously) Haruhi. Only by forcing everyone to finish their summer homework does Kyon manage to make her not wish for summer to continue, finally ending the loop.
* HairTriggerTemper: Underneath her aloof exterior it quickly becomes apparent that it doesn’t take much to get her riled up.
* HaveWeMet: Haruhi Suzumiya asks Kyon this during their first conversation. She has in fact met him before, but Kyon hasn't; he will meet her three years ago a couple of months later.
* TheHedonist: Her goal in life is to make the world more exciting.
* HeelFaceTurn: Chronologically, in ''Sigh'' after nearly getting the shit punched out of her by Kyon for spiking Mikuru's drink ''and'' [[TheLastStraw calling her her toy]].
* HeelRealization: Suffers this in ''Sigh'' over her treatment of Mikuru, especially since Kyon was so furious at her for it that [[WouldHitAGirl he had to be physically restrained from punching her out]]. Directly after this is one of her biggest PetTheDog moments, and she becomes much nicer after this. Made more obvious in the anime rendition, where she looks away from Kyon as he calls her out and it's clear she's [[CryCute fighting back tears]].
* HeroicBSOD: Comedic use in Episode 7 of ''Manga/HaruhiChan'' when Haruhi had Kyon go Scavenger Hunting for "A barrier of the heart", and Kyon grabbed Koizumi.
--> '''Haruhi:''' "A barrier to the heart", why him? \\
'''Kyon:''' So, Koizumi. [[HoYay I love you]]. \\
'''Haruhi:''' Gack! ''[insert metaphor for her world shattering]''\\
''[scene change]''\\
'''Kyon's Sister:''' Attention! Haruhi-chan has fainted so we're taking a break!
* HesBack: In Disappearance, after Haruhi is told about the club, she proves that she still has what it takes to be a leader and gathers them back in the club room to start the club again.
* HiddenDepths:
** Underneath her initial cold and aloof exterior is revealed to be a very eccentric girl who is as passionate about everything she does as she is skilled. [[spoiler: And that’s before you even get into her powers…]]
** Despite her wild and unpredictable nature, there do appear to be a few principles that she is willing to honor; she addresses adults in a respectful manner, uses conventional etiquette, and emphasizes the observance of traditional holidays.
* HighSchoolHustler: A rare female example. One of Haruhi Suzumiya's many strengths is the ability to get away with practically anything, up to and including extortion, indecent exposure, commandeering an entire room, and press-ganging members, and make the SOS Brigade end up in a better situation by the end of the episode. Her peculiar brand of conscientious amorality tends to help with this. The fact that she is possibly God probably helps a lot more. However, this trope is probably played straight. Her "recruiting" of Asahina in Disappearance (where she can't cheat) is a good example: She flings the door open, claims to be from the Student Council Intelligence Agency... and drags an upperclassman out. No problem.
* HostileShowTakeover: Haruhi, despite only being a student of North High for a little while, quickly takes over the Literature Club room, and brings in much of the antics that define the series.
* HotBlooded: Particularly during her fight with Kyon during the SOS film about her abusing Mikuru.
* HotGoddess: If the popular theory that Haruhi is (a) God is indeed true, then she's one great looking goddess (or GodModeSue, anyway)
* HumanoidAbomination: It has been hinted that Haruhi might be one of these, due to her reality warping powers and her [[BlueAndOrangeMorality bizarre mental state]]. Whether she is this or just a really powerful human, she at the very least is capable of subconsciously creating them as demonstrated by the presence of the Data Interfaces.
* IAmWho: Haruhi has Reality Warper powers of which she is entirely unaware, and considering the type of person she is, her friends want to keep it that way. Fans often say she's God in Human Form, but within both the novels and anime, this is directly stated to be just one unconfirmed theory among many for her powers, and one considered to be extremely unlikely by the one who brings it up.
* InexplicablyAwesome: A plot point; no one knows how her powers work or where she got them. Itsuki says that one day he realized he had powers, and that she gave them to him.
* IJustWantToBeNormal: It turns out that what she most enjoys is hanging out with her fellow brigade members and doing ordinary high school activities together, like playing baseball, doing summer activities or helping them do their summer homework. So Haruhi is really IJustWantToBeNormal posing as IJustWantToBeSpecial.
* IJustWantToBeSpecial: Much of her more extreme actions are driven by a desire for a more extraordinary life; this stems from her parents taking her to a baseball game as a child, and she realized just how many other people were in the stadium and that this was just a fraction of Japan's population. While she was initially disappointed to learn that this made her just as ordinary as everyone else, she still clings to the idea that there must be at least one person out there who's truly interesting and unique, and she desires to be that person. If only she knew she was truly a reality warper (or maybe it's better that she doesn't).
%%* IndyPloy:
* ImportantHairAccessory: When she's first introduced, she has a habit of changing her hairstyle every day, tying up more and more of her hair each time with an increasing number of hair decorations. After Kyon asks her why she does that, she sticks to her trademark yellow hairband from that point on since that was what she was wearing when he asked her.
* ImportantHaircut:
** Haruhi cuts her hair after meeting Kyon, about the same time she changes from being antisocial to being outgoing and happy. Before that, she changed her hair based on the day of the week, with a full-blown explanation as to why. It's implied she did this to get Kyon to comment on it.
** Haruhi can sometimes be seen holding her hair in a ponytail after Kyon claims to have a thing for girls with ponytails in a "dream," with the most obvious example being that she has her hair in a ponytail the very next day after said "dream." In fact, at one point, when deciding on whether or not to put Mikuru's hair in a ponytail, Haruhi looks at Kyon and immediately drops the idea out of jealousy. She does it again the day after Kyon blows up at her over her mistreatment of Mikuru during the shooting of their movie.
** In the Disappearance arc, the alternate-timeline Haruhi still has long hair and is still snarky and antisocial. This shows how much of an impact Kyon had on Haruhi in the old timeline.
* IndifferentBeauty: Subverted, she knows she's beautiful, but doesn't care so much about it, chopping off her long hair without a second thought. That said she isn't completely oblivious of it either, and she won't hesitate to exploit her good looks, if it means publicity for the SOS Brigade, dressing up as a BunnyGirl while handing out flyers.
* IndirectKiss: While shooting their film in "The Sigh of Haruhi Suzumiya", Mikuru offers Kyon water from the bottle she's been drinking from. Haruhi immediately grabs it from him. Later at the end of the arc, Haruhi drinks from the same cup as Kyon in a café, though it's mostly just to spite him. We never see if Haruhi had this trope in mind or not.
* InferioritySuperiorityComplex: When she was a little girl, she thought of herself as special until her parents took her to a sporting event and she saw a stadium full of people. She realized then just how many people were alive in the world, and how utterly unremarkable she really was. It's downplayed (in fact, no one may even know it but Kyon), but her forceful and loud personality and attempts to have adventures are a conscious effort to make herself unique. This is partly what led to her developing her {{Jerkass}} LargeHam persona that she uses to boss around the other SOS Brigade members, as well as her desire for an extraordinary life. The real irony, is that she's the only one who doesn't know that she is truly is unique (and might possibly be {{God}})
* InformedAttractiveness: Is said to be beautiful on cosmic levels, but because of the art style, she doesn't immediately seem any more or less attractive than any other female character.
* InsaneTrollLogic: She will make extreme leaps of logic to make things fit her way.
* IntelligenceEqualsIsolation: At the start of the series, she had good grades in all her academic classes and absolutely zero trace of a social life.
* ItsAllAboutMe: A defining trait early in the series is her steam rolling over everyone in the name of making her own life less boring. She tones it down in later adventures.
* ItAmusedMe: The reason Haruhi does anything is defined by this trope. And considering her god-like powers, one shudders to consider what she would do if she were aware of them.
* ItIsDehumanizing: Whenever Kyon brings his little sister to the baseball game, Haruhi in anger refers to her merely as “something” which Kyon quickly calls her out for.
* {{Jerkass}}: Haruhi Suzumiya starts out as completely self-absorbed along with having a dash of Genki Girl, more or less hitting every point on the list of diagnostic criteria for antisocial personality disorder. And the fact that she is capable of destroying the world if she's seriously naysayed — or bored — just puts icing on the cake. In her defense, she does not know she's got said powers... but due to the disregard she shows even towards her closest friends, it's much better to keep her Locked Out of the Loop lest she decide to intentionally screw over humanity on a whim. She does eventually become a Jerk with a Heart of Gold, but it takes a good while.
* JerkassRealization: Has this for the first time after Kyon chews her out and nearly hits her after her treatment of Mikuru, kick starting her CharacterDevelopment.
* JerkJock: Haruhi is passionate about sports, at one point even leading a team, and even after her CharacterDevelopment never completely loses her {{Jerkass}} nature.
* JerkToNiceGuyPlot: While Kyon is the main character, the main driving force of the story is Haruhi going from a {{Jerkass}} to someone who is openly willing to show empathy towards others.
* JerkWithAHeartOfGold: After CharacterDevelopment. She's still selfish, bossy and arrogant, but she does treat the Brigade members very well, like after Kyon fell into a coma in Disappearance and when Yuki fell sick because of the Sky Canopy Dominon in “Snow Mountain Syndrome”. Most recently seen in the end of the beta storyline of Dissociation.
* JumpedAtTheCall: Exaggerated; she ''didn't even get one'' in the first place. From a certain point of view you could say that she ''made'' the call.
* JustFriends: Haruhi and Koizumi are merely friends, no matter how much the latter may want to be more; she befriended him while he was adjusting to a new school, and eventually he was charmed by her and fell in love with her.
* KarmaHoudini: Character Development or not, there have been times where Karma seems to love giving Haruhi Suzumiya the longer end of the stick. From groping Mikuru, to blackmailing the Computer Club, to spiking Mikuru's drink and calling her Haruhi's toy, many come to wonder why she hasn't been suspended/expelled/arrested. She did almost earn a punch from Kyon for those last two offenses (the last straw being the "Mikuru is my toy" thing), which prompted her immediate Heel–Face Turn (even more immediate in the anime version), so this could be a subversion. Doesn't stop her from molesting Mikuru in "Someday in the Rain" just for old time's sake, but then again, that may just be the author confused about the timeline he had set up in Anachronic Order.
* KickTheDog: A ''lot'' in the first few episodes, as well as the ''Sigh'' arc. Examples include framing the computer club for molesting Mikuru so she can blackmail them into giving her their best computer for free, and forcing them to swear loyalty to her when the club failed to get back said computer. Then there's the ''Sigh'' arc, where she treats Mikuru like crap and openly declares her her toy; this leads to a HeelRealization on her end when Kyon gets sick of Haruhi's bitchiness, chews her out for it, and has to be physically restrained from hitting her.
* KillTheGod: [[spoiler:A near-victim of this during]] the climax of ''Surprise Vol. 2''.
%%* KnightInSourArmor: Following her CharacterDevelopment.
* LackOfEmpathy: A deconstruction. What if a god, a being far above humanity -- which it can destroy or remake at will -- was put in the body of a human? What if she forgot her power, but not her BlueAndOrangeMorality?
* LargeHam: She has some ''very'' hammy moments, particularly when she's waxing lyrical over her plans for the SOS Brigade.
* TheLeader: Of the SOS Brigade. Or in her words, "Super Commander". Her personality makes her a headstrong/charismatic type.
* LeeroyJenkins: In the DeepImmersionGaming episode "Day Of Sagittarius". "ALL SHIPS ATTACK!"
* {{Leitmotif}}: "How Promising" is used pretty often and when it starts playing it usually means Haruhi's about to pull some harebrained scheme again.
* LittleMissAlmighty: [[UnreliableExpositor Though her true nature is still open to speculation]], her god-like powers are undoubted. She even provides the page image.
* LockedOutOfTheLoop: There are multiple secrets being kept from Haruhi.
** There's an alien, a time-traveler, an esper, and Kyon trying to prevent her from realizing that she's omnipotent, in fear of what she'd do with the power. True, she does, after Character Development at least, soften up into being a Jerk with a Heart of Gold, but, well, that still leaves her A: as at least a part-time Jerkass and B: she doesn't tend to think before acting. Yeah, even being Locked Out of the Loop doesn't prevent her from using her Reality Warper powers, but at least it's unconscious and relatively minute in scope while she's oblivious — if she knew she could recreate reality at will, she could exhibit much more drastic manifestations of her power.
** They also must keep it a secret that they are an alien, a time-traveler and an esper because they fear if she had proof they existed, she would subconsciously create more of them, or even stranger beings, or who knows what else might seem "fun" to her.
** In fact, the idea that Haruhi is God incarnate is just what they think Haruhi's secret is. Or rather, it's what Kyon and most of the readers think, thanks to Itsuki "Completely Trustworthy" Koizumi. Yuki and Mikuru's factions have their own theories. They're all keeping watch on her because none of them are entirely sure what she is or what she's capable of, but they're all pretty confident that letting her find out about and/or overuse her powers would be very dangerous.
** As early as the second book, Kyon goes against the advice of the others and directly tells Haruhi everything that has happened up to that point. She yells at him to stop messing with her. He never attempts this again, but does later threaten that he would in order to keep Yuki's employers in check.
* LoveableRogue: Kyon is careful to not ask where all the stuff in the clubroom comes from.
* LoveRedeems: Whenever all of the dimensions are being threatened, Kyon saves them by giving Haruhi TheBigDamnKiss which is what convinces Haruhi to bring the old world back.
* LoveTriangle: Elements of a love triangle gradually appear in “The Disappearance Of Nagato Yuki Chan”.
** Haruhi supports Yuki's feelings for Kyon wholeheartedly, but there have been hints of her feelings for Kyon. It seemed chemistry was starting to bloom after Kyon pulls Haruhi out of the river, and she starts to feel something strange when Kyon pulls a John Smith-esque line. Later, Yuki walks in on Haruhi giving Kyon (obligation) chocolate during Valentines' Day, where Haruhi explains that she does feel a little bit of affection towards Kyon, stating that she "doesn't dislike him" to Yuki.
* LovingBully: Haruhi makes the bullying aspect towards Kyon more than apparent, but is rarely willing to show the loving side despite the numerous signs. However, as the former does become more visible, the latter softens up.
* LostHimInACardGame: Haruhi bets Mikuru whenever the SOS Brigade are challenged to play a game against the computer club. The computer club wants to win back a computer Haruhi stole and offers three more computers should she win. Haruhi offers Yuki to balance out the bet, equating her with the three computers. When the Computer Club President is taken aback by this, she offers Yuki instead. And when Kyon protests her willingness to wager other people, she relents and offers herself — an offer which the Computer Club president very much rejects…
* MagicalGirlfriend: She's Kyon's Magical SheIsNotMyGirlfriend, and a inversion of the whole thing, as she epitomizes exactly what protagonist Kyon claims he doesn't want out of life.
* MagicSkirt: Never gets so much as a PantyShot despite her reputation as an ShamelessFanserviceGirl.
* MaleGaze: There's a lot of focus on her butt in the Endless Eight arc. [[IncrediblyLamePun Repeatedly]]. "Remote Island Syndrome" has a lingering shot of her butt under a miniskirt, and it looks like she doesn't have any panties on. Due to the randomness of the shot and the fact that she must have exposed herself to a bunch of people at that point, it can fall into FetishRetardant for some.
* ManicPixieDreamGirl: Subverted, then played straight:
** Haruhi is a seemingly textbook example of the manic pixie dream girl, coming into Kyon's life, unknowingly introducing him to a group of supernatural beings and just making his life wackier and crazier than before. Only problem is that Haruhi is terrified of living a regular, unremarkable life, and is violently determined to make sure that doesn't happen. Along with the whole thing about her being God. She goes between relentlessly perky and hyper, vaguely sociopathic and having an existential crisis throughout the first arc (thus the Artifact Title 'The Melancholy of Haruhi Suzumiya'.) Kyon finds her behavior to be irritating and obnoxious and wishes she had left him alone to be an Ordinary High-School Student. Subverted with Kyon being the one to inspire Haruhi to begin the SOS club and draw the melancholy out of her by making her subconsciously realize living a regular life might not be so bad. Via a kiss. In a way, the dull, snarky Kyon was Haruhi’s MPDG.
** Then played straight in the Big Damn Movie, where when presented with the choice between a world without Haruhi and one with, he does everything he can for the latter, realizing that he really quite likes being a part of Haruhi's crazy life. This revelation is topped with tons of Ship Tease to boot. Despite this, Haruhi is clearly far more complex than your typical dream girl, so she still dodges the trope slightly.
* ManipulativeBitch: Whenever Haruhai wants her way, there’s practically nothing she’s not willing to resort to in order to get it, whether that be smooth-talking, blackmailing, intimidation or anything else that it may take.
* MaybeEverAfter: In “The Disappearance Of Nagato Yuki Chan” by the epilogue, Haruhi and Koizumi are not an official couple, but he has made her aware of his feelings for her and she in turn has given him the ultimatum of getting her to reciprocate. While she hadn’t shown any prior interest, Haruhi does blush when Asakura comments that the challenge is Haruhi’s way of dodging having to answer him.
* MikeNelsonDestroyerOfWorlds: Several times, Haruhi endangers the universe without realizing it. It's strongly implied that she destroyed the universe [[ArcNumber 3 years ago]], and replaced it with one more to her liking.
* MistressAndServantBoy: To an extent, Haruhi and Kyon have this relationship, as Haruhi is the brigade leader and Kyon basically has the lowest rank. They even employ the NecktieLeash trope on occasion but they are generally more peaceful than others as Haruhi doesn't do harm to him for emotional reasons. In the later novels, Kyon seems to acknowledge her as TheLeader.
** This is definitely how the rest of the school views them. "Right, Kyon, you're normal. Sure. You're Suzumiya's minion and you're trying to pull that?"
** Haruhi seems to think of them this way. In the movie after a long list of outrageous titles for Haruhi the credits say "Menial Labor: Kyon".
* MomentKiller: Will happily bend the laws of space and time just to keep Kyon from talking to other girls. Has berserk superhuman strength when he seems to be writing love letters to other girls.
* MoodSwinger: Now she's a cheerful GenkiGirl, the next scene she's abrasive, confrontational, dominant and almost narcissistic, after that she may become extremely melancholic. There are reasons for her mood-changes, but sometimes it just appears randomly.
* MotorMouth: Once she gets excited about something and starts rambling about it, it’s a miracle if anyone else can ever get a word in, and whenever they do, she tends to immediately shut them down before carrying on.
* MsImagination: She frequently melds her imagination with the Real Life through RealityWarping - ''and isn't even aware of it''.
* MsFanservice: While not as extreme as Mikuru, Haruhi herself qualifies. She is described as being quite the beauty, and she's much more of a Shameless Fanservice Girl on top of that.
* MsViceGirl: Haruhi starts out as a jerkass Genki Girl and eventually becomes, well, a selfish jerk who means well and values her friends more than making the world exciting.
* {{Narcissist}}: This girl’s ego is through the roof. She believes her time is too important to be wasted with normal “boring” humans, creates an entire Brigade purely for her own amusement, shows very little sense of personal space or empathy in general, constantly harassing and bossing around her fellow members and never apologizing for it. At the very least, she does have the background to somewhat back it up, [[TheAce excelling at practically everything she does]] and being an all powerful RealityWarper, albeit unknowingly.
%%* NaughtyIsGood:
* NecktieLeash: Currently provides the trope image, though she mostly does this just in the anime. In the novels she leads him arm in arm. It shows character development for Haruhi when she stops dragging Kyon along by the tie and takes him by the hand instead.
* NeverMyFault: Even [[Franchise/{{Peanuts}} Lucy van Pelt]] apologizes more often than Haruhi. Of course, Haruhi is never even told of most of the things she does. Most of the time, due to her LackOfEmpathy, she isn't even aware that there's something to apologize for. This gets better, although the changes are very subtle.
* NoIndoorVoice: Whenever she’s not being anti-social and actually does engage in a conversation with someone, she has a tendency to shout.
* NominalHero: Haruhi starts the S.O.S. Brigade precisely because she is bored, and is looking for entertainment. Later in the series, it is implied that she enjoys the company of her fellow brigade members, particularly Kyon.
* NoSell
-->'''Kyon''': ...If you want to achieve faster-than-light travel, let Haruhi on your spaceship. She'll just simply [[RealityWarper ignore the theory of relativity]] for you.\\
When I mentioned this to Nagato, the reticent pseudo-alien responded with the following.\\
"Your belief is most likely correct."
* NoSenseOfPersonalSpace: Haruhi is inappropriately in-your-face with just about everyone and likes to grope Mikuru for Fanservice and/or her own enjoyment.
** While she will order (or drag/kidnap) just about anyone, this trope is mostly restricted to Kyon and Mikuru, with the other SOS members being mostly immune; make of that what you will.
* NoSuchThingAsSpaceJesus: Most brigade members question God being one of us, rather than above the clouds.
* ObliviouslyEvil: All she wants to do is make the world a less boring place. Unfortunately, for the rest of us, [[ComedicSociopathy she doesn't seem to comprehend that not everyone shares her]] [[NightmareFetishist sense of fun]], And perhaps more importantly, doesn't realize that [[RealityWarper her mere subconscious thoughts have a serious impact on the world around her]].
* ObliviousToLove: Haruhi herself also seems to have this, despite more frequently being on the receiving end of it. She is oblivious to Kozumi's feelings for her. And Kyon's later on when he starts to return her feelings. To be fair, they are both trying to hide how they feel from her, but for different reasons.
* OddFriendship: Haruhi has this with Kyon. Haruhi is an over-the-top, borderline sociopath who starts her own club (ironically at Kyon's suggestion) devoted to the strange and supernatural and Kyon is laid-back and doesn't believe in anything strange or supernatural. Despite this, they've become best friends who can trust each other with almost anything.
* TheOmnipotent: Haruhi Suzumiya is absolutely omnipotent, unbeknownst to herself. And considering her behavior, it's probably better for the SOS Brigade to keep all paranormal stuff away from her in secret, lest..
** How omnipotent? Most of the characters are not what they seem, and were sent by their respective factions to make sure she doesn't realize what she can do. If she does, or even if she becomes displeased with the current universe enough to deeply desire a different one without knowing she can make it so, the entire universe could be heavily altered or even erased and utterly rewritten... just like when she rewrote the universe into this one only a few years ago, even though it seems to have a vast history. The whole premise of the show is that she seeks the paranormal because she finds the 'normal' world boring - so they'd better show her the more interesting side of the world, or else. Ironically, she's surrounded by just the kind of beings she was hoping to find, herself at the top of the list... but her knowing any of that might lead to the bored Jerkass realizing she's God.
** [[spoiler: It turns out that her omnipotence can actually be given to other people, when she gives it to Yuki.]]
* OOCIsSeriousBusiness: Whenever she seriously crosses the line and Kyon nearly strikes her, the cheerful and selfish Haruhi actually cries for the first time.
* OutOfFocus: Haruhi Suzumiya has had this happen to her in a lot of ways. Justified, in that keeping her unaware and uninvolved is practically the SOS Brigade's true modus operandi. For everyone's sake.
* ParodySue: She has probably become the definitive deconstruction/parody of the GodModeSue in Anime. She's brilliant and gets top grades without having to study ([[DitzyGenius though also prone to doing stupid things]] regularly), she's [[InformedAttractiveness noted to be stunningly beautiful]], she's also in incredible physical shape (having in a short period of time been in, quickly excelling, and gotten bored with, every school athletic club, who are pining to have her back), and an entire organization exists with the sole purpose of keeping her happy and making sure that she never loses at anything ([[SoreLoser because they are afraid of her]]). She is also [[spoiler:a ''literal'' God Mode Sue.]]
* PassionateSportsGirl: A girl who excels at athletics and has the enthusiasm and competitive spirit to match her skill.
* PerpetualFrowner: During her introduction.
* PersonalityPowers: Haruhi can change all of reality to fit exactly how she needs it to. This reflects her constant desire to control everything and her brief of being superior to others, as well as her needs to be the center of attention and to have an exciting life.
* PetTheDog: As the series progresses, she reveals that she genuinely cares for her friends:
** Most famously, the ENOZ concert and in the later novels... Valentine's Chocolate!
** The way she deals with little kids, such as Kyon's sister, qualifies as well.
** She gets an explicit version in book 8 also with Rousseau.
* ThePhilosopher: Haruhi will talk about her philosophy at various points only when alone with Kyon though. Like when she explains how she became the way she is in Melancholy or when tutoring Kyon in Suprise. She also knew the origin of Rousseau's name.
* PintSizedPowerhouse: Haruhi isn’t known for her size in comparison to the other members of the S.O.S. Brigade. It doesn’t change the fact that she’s a powerful RealityWarper, and even without that is still the most skilled athlete among them.
* PlayboyBunny: Provides the page image with Mikuru. As beffiting her attention-seeking personality, Haruhi frequently wears her dark-brown/black (it [[DependingOnTheArtist depends who draws her]]) bunny suit. At one point she even claims it's her favorite outfit.
* PluckyGirl: While she has motives and goals that aren't common for this trope, her personality fits it to a tee. She is cheerful, confident, charismatic, and if it wasn’t for her own personal flaws would be a very effective heroine.
* ThePowerOfHate: Whenever she is feeling particularly angry, it unconsciously manifests in the form of Closed Spaces and giant blue creatures called Celestials that destroy everything around them.
* ThePowerOfLove: This is what saves the world from divine puberty. Kyon kisses Haruhi inside Closed Space and it convinces her not to rewrite reality.
%%* PowerOfCreation
%%* PragmaticHero
* PrecisionFStrike: In episode 2 Haruhi forces the Computer Research Society President to abuse Mikuru against his will as Kyon takes pictures. When Haruhi tries to blackmail the club based on the "evidence" she has, the other members defend him. Haruhi is quick to respond (a crying shame the actual word got bleeped) by saying, "Then I'll tell everyone at school that all you geeks ganged up on her and fucked her!" The club is aghast at Haruhi's language (she swears in the Japanese version too; why else would there be a bleep midway through her line?) and her threat. Averted in the light novel when she simply says, "I'll say that the whole club gang-raped her!"
* PrimaDonnaDirector: She becomes one while the SOS Brigade is filming "The Adventures of Mikuru Asahina."
* PrivateTutor:
** She tutors a number of kids from her neighborhood, including one who [[spoiler:will end up inventing time travel]].
** In ''Disassociation'', she starts tutoring Kyon out of the blue with no explanation. It takes him a while to figure out that she's trying to get his grades up so that he can go to the same college as she. [[spoiler:In ''Surprise'', when Kyon ends up a few years in the future, it's implied this plan worked]].
* PubertySuperpower: Haruhi along with Koizumi both gained their powers at the age of 12 and Koizumi’s was only because of Haruhi.
* PunyEarthlings: Zigzagged. In the world of Haruhi Suzumiya, there are possibly-omniscient aliens capable of Rewriting Reality and surviving attacks which would kill a normal human... of course, this is softened somewhat by the fact that the most powerful being in the series is an otherwise normal human girl, or at least she would be if she knew of her powers. Of course there have been some hints given that Haruhi might not be entirely human, though…
* PutOnABus: [[spoiler:This happens to her along with Itsuki after Yuki rewrites reality so that she is the main character of the story with a crush on Kyon instead of Haruhi.]]
* RealLifeSuperPowers: Even disregarding her RealityWarping, Haruhi can still accomplish things through her sheer determination, and charisma.
* RealityWarper: A unique take on this trope. Haruhi is an omnipotent being capable of bending reality, though she is not at all aware of this. The short list of people who are aware of this fact are her completely average and reluctant best friend Kyon, and a trio of supernatural creations of hers (and their respective employers). The four of them are forced to engage in random activities to keep her from getting too bored and causing TheEndOfThe WorldAsWeKnowIt by subconsciously wishing it were different. And telling her about her powers is not an option because who knows what she would do if she had conscious control.
* ReallyGetsAround: A mild example, since in middle school Haruhi had the tendency to date every guy who confessed to her. Even if the relationship would only last ''five minutes''.
* RebelliousSpirit: Unconventional and breaks some social norms.
* RedArmbandOfLeadership: Her trademark.
* RedIsHeroic: She wears a red armband, her ColorMotif is red, and while it takes her a while, she does eventually manage to reach the status of hero.
* RedOniBlueOni: Haruhi is the red oni to Kyon’s blue oni. Haruhi is a passionate Genki Girl, while Kyon is the calm voice of reason and a Deadpan Snarker.
* ReedRichardsIsUseless: She could solve all the world's problems, but this would cause an overloading of excitement.
* RenaissanceMan: She's good at sports, bug catching, goldfish scooping, school, singing, and cooking.
* RubberFace: She currently provides the page image and has been on both the giving and receiving end of this trope across different media:
** She does this to punish Mikuru, for not following her nonsensical baseball signals in "The Boredom of Haruhi Suzumiya".
** Haruhi in turn does this to Yuki in “The Disappearance Of Nagato Yuki Chan” when the latter starts getting apologetic about Haruhi doing everything for the Literature Club.
** She’s finally on the receiving end, whenever Ryōko does this to Haruhi after finding out the latter had Yuki quickly sign a permission slip to allow her and Koizumi to enter their school for club activities despite not being students at the school.
* SavvyGuyEnergeticGirl: Energetic Girl to Kyon's Savvy Guy. Haruhi is a fanciful Genki Girl who constantly drags her friends into Zany Schemes while Kyon is a lazy, stoic, and snarky guy. It's hinted that Haruhi likes him but is too much of a Tsundere to admit it outright. Kyon doesn't really reciprocate but can't make this clear, as upsetting her too much could upend the world as they know it due to her Reality Warper powers.
* SchoolIdol: Held in awe by all the students, who don't understand why she's so distant.
* SecondaryCharacterTitle: At first glance it may look like Haruhi is the main character (she is after all the poster girl) but [[POVBoyPosterGirl she's not]], and as seen in DecoyProtagonist above, Kyon is TheHero.
* SeriousBusiness: To Haruhi, ''everything'' is SeriousBusiness.
* ShadowArchetype: Haruhi and Kyon to each other. Haruhi is the irrational Daydream Believer that Kyon learnt to suppress for the sake of order (and lack of disappointment) in his life. Kyon is the rational Agent Scully that Haruhi learnt to suppress for the sake of fun.
* ShamelessFanserviceGirl: Haruhi's definitively got the assets, and she doesn't care if guys see her naked. While in any other anime the guys would be ectastic about the fanservice she gleefully provides, this is ''Haruhi Suzumiya'', so Kyon concludes that mentally she views them as being the same as potatos. The point where she starts kicking Kyon out of the room when changing is therefore pretty telling on her part.
* ShesGotLegs: Which gets ample emphasis in the anime, be it thanks to the short skirt she wears as part of her school uniform or her trademark bunny suit.
* ShipTease:
** Haruhi's feelings for Kyon are rather obvious, to everyone but Kyon (who can't stop ranting and snarking about her), and Kyon's crush on Mikuru is hilariously explicit. The crush actually is returned by Mikuru, with occasional flirting between the two, but you know how the time travel-rules are...The teasing comes in with Yuki (to the point of blatancy in the fourth novel/theatrical film where she temporarily becomes a "real" girl...for Kyon) and Itsuki, who may just be doing it to mess with Kyon, aka Mr. Have I Mentioned I Am Heterosexual Today?. If the 5th novel is anything to go by, Mikuru's feelings for Haruhi and Koizumi's statements on how charming Haruhi is and that he "envies" Kyon. And let's include the return of Ryoko Asakura in Disappearance. One has to ask himself why she, despite being a normal human, stabbed Kyon to protect Yuki.
** [[spoiler: UpToEleven in Surprise. The Disassociation tutoring scheme was to get Kyon's grades up enough so he could go to the same college with her, and as it seems College!Haruhi is very nice to Current!Kyon and College!Kyon calls her to go with him somewhere - a complete opposite from their current interactions. This means they're pretty much guaranteed to end up as an Official Couple sometime in the future.]]
* SignatureHeadgear: She's well known for her yellow hairband with two matching ribbons attached to it.
* TheSociopath: At the start of the series, her behavior fits almost every diagnostic criteria for Antisocial Personality Disorder; she [[ItsAllAboutMe steamrolls over everyone in her way]] for the sake of her goals, has an extreme LackOfEmpathy to the point of openly declaring Mikuru her toy in ''Sigh'', has a pathological need for stimulation, constantly going above and beyond to find excitement and make her life less boring, and at one point, is utterly bewildered and disturbed when a band she helped out sincerely thanks her for her help. [[CharacterDevelopment She gets better as the series progresses]].
* SheIsNotMyGirlfriend: In “The Disappearance Of Nagato Yuki Chan” Haruhi bemoans having to constantly explain that Koizumi isn't her boyfriend, too. She doesn't view him as anything more than a friend, even though Koizumi wishes things were different.
* {{Shorttank}}: She is the closest the series comes to having this archetype; evidence of this includes a passion for sports, which is most explicit in "Boredom", and her wardrobe including cuffed jean shorts, as seen in "Remote Island Syndrome", "Endless Eight", and "Sigh".
* ASimplePlan: Form a club, pass out flyers, win a baseball game, make a movie. There must be a conspiracy sabotaging each of her simple plans.
* SkepticismFailure: Haruhi ''causes'' skepticism to fail.
* SlapstickKnowsNoGender: While this is averted in the main series, it’s less to do with Haruhi’s gender, and more what the [[EndOfTheWorldAsWeKnowIt result]] of such a thing would be. It gets played straight though in the spin off “Haruhi-chan” where she suffers along with Achakura more than any other character.
* SmallGirlBigGun: Haruhi invokes this trope during the filming of the movie by outfitting Mikuru with twin (airsoft) Desert Eagles. The results are about as awesomely, ridiculously hilarious as you'd imagine.
* SociopathicHero: While she has a LackOfEmpathy and is motivated by overcoming her own boredom, she does still fight alongside the good guys and does at least to some point genuinely believe in what she is doing.
* SpotlightStealingSquad: In the Spin-Off “The Disappearance of Nagato Yuki-chan”., Haruhi seems to be stealing the spotlight back after Nagato herself stole it her own series, starting with a Chekhov's Gunman cameo in the first episode, moving to a flashback that makes her important to Nagato's recent past in the second, until finally stealing the show starting with her third episode debut. As of the fourth episode, the spotlight hogging has yet to show any signs of abating.
* StartMyOwn: Her motivation for this after Kyon talks to her a little about how people adapted or created things to suit their needs.
* StepfordSmiler: Demonstrates this after finding Nakagawa's written love confession to Yuki. She does it again in "The Melancholy of Mikuru Asahina". Kyon even mentions that her smiling is usually a bad thing (esp, for him an Asahina). She demonstrates a great CheshireCatGrin in the anime in Melancholy VI after [[spoiler:Koizumi explains it's the EndOfTheWorld; we see her stalking around the school [[SlasherSmile grinning]]]].
* StillTheLeader: Downplayed most of the time. There's no chance of Haruhi ever losing her role as the Brigade's official leader, but whenever Kyon starts making plans or instructing the other Brigade members without her input, she still feels obligated to remind him that she's the leader and it's her job to give the orders (even though she usually just ends up going along with his ideas anyway). Kyon attributes this to her competitiveness.
* StoryBreakerPower: An extreme example. Haruhi is a RealityWarper who might possibly even be TheOmnipotent. There’s very little if anything that could ever be a legitimate threat to her as she subconsciously warps reality to suit her needs. The main conflicts of the series either come from trying to make sure Haruhi never discovers her power or come at times whenever [[spoiler: Haruhi doesn’t have her powers.]] If she ever did discover them and used them to their full extent, [[EndOfTheWorldAsWeKnowIt there likely wouldn’t even be a story anymore.]]
* StrangeMindsThinkAlike: Haruhi and Kyon provide a number of subtle examples of this. Arguably the reason why Haruhi "chooses" Kyon:
** In the very beginning of the chronological first episode, Kyon specifically mentioned that in the past he hoped that there are "aliens, time travelers, and espers". Guess what Haruhi ends up subconsciously creating?
** In "Bamboo Leaf Rhapsody" there's a couple of superficially apparent false examples of this: Kyon tells Haruhi to go get the line marker before she explains what they're going to do (which visibly surprises her in the anime), and he also manages to guess the symbols are a message to Orihime and Hikoboshi without her explaining it. He has the advantage of, well, knowing high-school Haruhi, but her middle-school version seems surprised at John Smith's ability to understand what she's thinking. On the other hand, Kyon imagines the message scene when first told about it back in Melancholy. He actually got some of the details right, like her stealing the materials ahead of time.
** In "Someday in the Rain" and Disappearance, both Kyon and Haruhi, upon being woken up by the other, think that the other one must have been drawing on their face.
** In the 8th book, both Koizumi and a random passerby come to the conclusion that cats and dogs must be avoiding a certain area because there is a hibernating bear somewhere. In the middle of the town. In the same book, both Haruhi and Sakanaka's father use the nickname "J.J." for a dog called Rousseau. Maybe they had the same philosopher in mind.
** In Sigh, Kyon accurately guesses why Haruhi wanted to make a movie.
** When asked to think of a test for new Brigade members, Kyon comes up with catching 101 hamsters. When it turns out that's exactly the test Haruhi wanted to use, down to the number of hamsters, Kyon worries that his brainwashing must be almost complete.
* SubordinateExcuse: Haruhi uses this a lot to help out Kyon. It's her reason for staying in the hospital in Disappearance and she tutors him later in the novels. Interestingly, she can take care of Yuki because she's worried about her.
* SugarAndIcePersonality: The ice side is predominant from the beginning and has to defrost a bit before the sugar side becomes more apparent. Even after this, her softer side usually comes out only around specific people.
* SummonMagic: Every time Kyon copies one of her drawings, alien monsters appear.
* SuperPowerLottery: Downplayed. Haruhi is a powerful RealityWarper, possibly even TheOmnipotent... but she's LockedOutOfTheLoop and — limited by her common sense — only using her power subconsciously. Haruhi has definitely got a winning ticket, but time will tell if she ever cashes it in.
* SupportingProtagonist: Kyon is always the main character, but Haruhi is the main focus of the story and leader of the brigade.
* SupremeChef: Oddly enough, she turns out to be this as part of her TeamMom persona later in the books.
* TeamMom:
** In the first chapter of Vol. 10, where she takes care of a sick Nagato. Also, when she plays with a bunch of kids in Endless Eight.
** In "Snowy Mountain Syndrome," she almost overbearingly insists on caring for Nagato, even overriding Yuki's claims of being okay now.
* TearsOfRemorse: In the anime, she sheds these after Kyon calls her out for her treatment of Mikuru. Albeit barely and she attempts to hide them.
* TheTeetotaler: As of ''Disappearance'', following a bad experience with alcohol in "Remote Island Syndrome".
-->'''Haruhi''': I'm never gonna drink again, as long as I live!
* ThrillSeeker: Haruhi defines her whole life around this trope. She is always looking for something new that can excite her and challenge her. If something doesn't meet that criteria, it is nigh impossible to get her to care about it.
* TokenEvilTeammate: Initially, she is often seen bullying and bossing around the other members of the SOS Brigade, especially Mikuru. She gets better after her HeelFaceTurn toward the end of ''Sigh''.
* TomboyAndGirlyGirl: Overall, Haruhi is the most tomboyish member of the cast, to give some specific examples:
** The most explicit such pairing is of boisterous, sporty and boyish Genki Girl Haruhi Suzumiya (who actually leads a sports team at one point) and sweet shy Girly Girl Mikuru Asahina.
** Later on, Haruhi becomes part of two other pairings, once again on the tomboyish side of the spectrum with each; the girly girl in one of them is Sasaki, who has no desire to take charge of the Anti-SOS Brigade and is in fact a supporting character in its downfall, and in the other pairing, Haruhi is considerably more boisterous and less moe than her intended successor in the role of SOS Brigade leader, Yasumi Watahashi (who turns out to be a product of the branching that takes place during the Dissociation/Surprise arc).
** Haruhi is also the tomboyish JerkJock to Yuki, who is more of a Bookworm.
** Haruhi is also an AloofDarkHairedGirl compared to Ryoko, who is a GirlyBruiser.
* TomboyishPonytail: Every Tuesday of the week until that fateful Wednesday when Kyon asked her about her varying hairstyles, and then again briefly at the end of ''Melancholy'' and when disguising herself in ''Disappearance''.
* TomboyWithAGirlyStreak: She is loud, aggressive, loves sports, and is incredibly competitive, but also has a slight romantic side that she shows from time to time.
* TookALevelInKindness: Early in the series she was insensitive and bullying, and she had little interest in her classmates beyond how she could use them for her own ends. After forming the SOS Brigade, she becomes more mentally stable and gradually connects with her other schoolmates, becoming more sympathetic to others and displaying a strong sense of responsibility towards the well-being of the SOS Brigade members, acting as the role of a CoolBigSis as well as the TeamMom.
%%* TheTrickster
* TrashOfTheTitans: A good portion of the clutter in the Brigade's clubroom belongs to Haruhi, and she won't get rid of any of it. She once told the Computer Club president that she'll never give up anything that's in the clubroom, "Not even a week old can of soda with no fizz." Lampshaded by Kyon in the short story "Love at First Sight":
--> '''Haruhi:''' Now listen here, Kyon. I don't ever waste anything I can use. If it can be reused, it should be, and so long as it's holding together, I won't throw it away. That's the spirit of environmentalism!\\
'''Kyon:''' ''[narrating]'' I wondered if this was how hoarders got started on their hoarding.
* TroubledButCute: She was an anti-social troublemaking jerk who nonetheless still managed to be cute even before her redeeming qualities became more apparent.
* {{Tsundere}}: Haruhi starts as a Jerkass. Although she has had some character development, the degree to which she's moved from Jerkass to Jerk with a Heart of Gold, are up for debate. Not yet seen in the anime, but by the fourth book, she's spouting some classic tsundere lines. Although maybe this is just a case of her Genre Savvy nature causing her to deliberately act this way.
** Haruhi is probably the poster child for tactic 4 (bossy), although 2 and 3 come up sometimes. She's fairly non-violent by the standards of this trope however (mostly because the series doesn't use comic violence). Most, she just drags people around.
** Haruhi is also a Deconstruction: What would happen if a Tsundere acted that way toward everyone they knew, rather than just love interests? It's slightly more pronounced toward Kyon (she doesn't make excuses as much with the others), but not by much.
* UnbrokenVigil: She never leaves Kyon's side while [[spoiler:he is hospitalized]] in ''Disappearance''.
* TheUnfettered: Whenever Haruhi wants something, practically nothing can hold her back and there’s nothing that she’s not willing to do for it.
* UngratefulBitch: Kyon at one point remarks that it is typical for Haruhi to show no gratitude to the people who help her.
* UnwittingInstigatorOfDoom: If Haruhi ever learns the true extent of her powers and how they work, she could become this for the entire universe if it causes her to GoMadFromTheRevelation. Of course, given the [[SociopathicHero kind of person]] [[{{Jerkass}}she is]] it’s just as likely that the “Unwitting” part wouldn’t apply in that scenario.
* VillainProtagonist: At the start of the series, she was pretty much an egocentric {{Jerkass}} and {{sadist}} who was not above [[KickTheDog kicking the dog]] several times [[ItAmusedMe for her own amusement]]. She does get better over the course of the series though.
* VitriolicBestBuds: In “The Disappearance Of Nagato Yuki Chan” Haruhi and Ryōko later develop this dynamic, as do Kyon and Haruhi. In the latter case, Kyon is put- off by Haruhi's antics, but does seem to understand her more than almost anyone else. In the former case, Haruhi will joke at Ryōko’s expense and Ryōko will often chastise or blame Haruhi when things go wrong, yet both of them can come to an understanding when dealing with Yuki’s efforts to convey her feelings and sometimes look to each other for support.
* WalkingSpoiler: The fact that she even has powers at all is a major revelation when it’s first revealed. Nevermind when it’s shown just what the potential full extent of those powers [[TheOmnipotent are.]]
* WithGreatPowerComesGreatInsanity: Haruhi Suzumiya, is kept LockedOutOfTheLoop regarding the fact that her friends are all examples of the very weirdness she seeks to find for this very reason. Already a Jerkass Tsundere, they're afraid that if she discovers that aliens, espers, dimension/time travelers and other such entities are real, she will manage to make the intuitive leap and realize that she is a Reality Warper of such power that she is, in all practical terms, a goddess. Given how much strain she can put on the fabric of reality even while she's unaware of her power, they naturally fear that allowing someone of her attitudes and ethics full control of her abilities would effectively bump her to EldritchAbomination status.
* WhatTheHellHero: Haruhi often gets called out by Kyon on her more sociopathic antics. Normally she just ignores him and even when she does back down she never concedes that she was over the line. But when she got Mikuru drunk and attempted to make Koizumi take her first kiss while she was out of it just for the sake of her student movie and followed it up by insisting she could do that because Mikuru is her toy, Kyon was so furious that he actually tried to hit her. Fortunately both Koizumi and Mikuru stopped him or the world would probably have exploded.
* WhenSheSmiles: In the novel, Kyon describes her first smile in ''Melancholy'' as like a "blazing sun," and the adjectives only get more colorful from there. In the anime, she really does look more beautiful on the rare occasions when she has a genuine smile instead of the [[{{Emoticon}} >:D]] expression she usually wears.
* TheXenophile: As demonstrated in her now-famous introduction speech, she "has no interest in ordinary humans" and would much rather meet aliens, time travelers, espers and other such phenomena. What she doesn't realize is that she's unknowingly drawn those exact kinds of people to her club.
* YouAreBetterThanYouThinkYouAre: A lot of what Haruhi does is out of a fear that she is just another regular “boring” human. The truth is, that she actually is one of the most powerful and unique people alive and that simply must be kept from her for the benefit of everyone.
* YouCannotGraspTheTrueForm: Recursively! Yuki's incomprehensible, hyperintelligent alien overlord is unable to comprehend Haruhi's true form; she's the only known being that can "create data" rather than merely "manipulate data," and it doesn't seem to have a clue how she does it. Mortal beings can't even agree on whether she's God or not.
* YourMindmakesItReal: Haruhi alters reality through her imagination unknowingly.
* YouWouldntLikeMeWhenImAngry: Everyone is always ready to make sure that Haruhi stays satisfied. Not only does she become unbearable when angry, but her temper could also lead to the end of the entire world.

[[folder:Kyon]]
[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/kyon.png]]
->'''Voiced by''': Creator/TomokazuSugita (JP), Creator/CrispinFreeman (EN)

-> ''"The question of how long someone believed in Santa Claus is a worthless topic that would never come up in idle conversation. Having said that, if you're going to ask me how much of my childhood I spent believing in an old man in a red suit, I can confidently say that I never believed in him to begin with."''

The viewpoint character and {{narrator}} of the series. Kyon is nothing more than a [[BrilliantButLazy bright but somewhat lazy]] OrdinaryHighSchoolStudent who has given up his childhood fantasies of aliens, [[TimeTravel time travelers]], [[PsychicPowers espers]], interdimensional travelers, [[GovernmentConspiracy Government Conspiracies]], etc., as he explains in his opening narration on his first day of high school. He [[IJustWantToBeNormal just wants his high school life to pass by uneventfully]].

Unfortunately for him, his curiosity gets the better of him when he is introduced to irritable {{Cloudcuckoolander}} Haruhi Suzumiya, and they strike up a sort of friendship, which eventually leads to him being the first member inducted into her bizarre "SOS Brigade", a club dedicated to finding all those things Kyon refuses to believe exist.

[[SkepticismFailure Naturally, all of them turn out to be real]]. And they all join the club, to boot.

What follows is the story of an ordinary ([[EpilepticTrees maybe]]) young man caught up in extraordinary events. While he constantly bemoans the insanity he's been thrust into, he [[UnfazedEveryman adapts to it]] out of necessity, and gradually (several novels into the series) comes to look on the lunatics he hangs out with as a sort of TrueCompanions, helping them prevent TheEndOfTheWorldAsWeKnowIt with a resigned sigh and a constantly suppressed panic.

Kyon [[UnreliableNarrator presents himself in the narration]] as a [[BlatantLies levelheaded, objective, philosophical guy]].
------
* AccidentalPervert: Although his thoughts regarding Mikuru sometimes move toward CovertPervert territory.
* ActionSurvivor: Several times. One of the most dramatic ones being when he's attacked by Asakura, which causes some severe MoodWhiplash.
* AgentScully: At first. Now he wants to go back to being a Scully. But he gets so much incontrovertible proof thrown at him early on he becomes a rather grumpy AgentMulder.
* AlternateCharacterReading: Apparently the nickname "Kyon" is a shortened form of a rather obscure reading of his name. Of course, we still don't know what his name ''is'', so...
* AlternateSelf: [[spoiler: From the ninth novel on, [[ForWantOfANail the narrative is split into]] [[AlternateTimeline separate (but concurrent) timelines]], and both unknowing Kyons recount the events of both the SOS Brigage gaining a new member (line α), and facing off against the Anti-SOS Brigade (line β). By the end of the eleventh novel, he is recombined as one, and given a FlashSideways, thereby easily being able to recall his experiences in both timelines.]]
* AwLookTheyReallyDoLoveEachOther: With Haruhi, ''very'' frequently. [[spoiler: Has a subtle but serious one when he accidentally travels a few years into the future in ''Surprise''; the now college-age Haruhi smiles at him in a way the current Haruhi never has, making him "dizzy". The moment is interrupted by future-Kyon calling out to her.]] This moment is particularly noteworthy in that at the end of "Wandering Shadow", [[spoiler: Kyon speaks of having arbitrarily received a book from Nagato about the romance of a boy and girl transitioning from high school to college together, his thoughts simultaneously referencing Nagato's "fortune telling" abilities.]]
* BadassBaritone: It's Crispin Freeman, what'd you expect?
* BadassBoast: The message he gave to the Data Entity. [[spoiler: "If anything happens to Yuki Nagato; I will let all hell break loose." He tells Yuki to tell the Data Entity that if it ever remotely thought of punishing her; he'll tell Haruhi everything. And make her believe it with "I am John Smith." Then he and the SOS would go as far as destroying existence and rebuilding it to get Yuki back. Oh, and the rebuilt reality would not have the Data Entity in it.]]
* BadassBookworm: Not in Yuki level, but qualifies to a degree. For bookworm part, he can make references on obscure and complex topics. For badass part, he can freaking [[spoiler: recreate the world by telling Haruhi that he's John Smith]].
* BadassNormal: It´s really impressive, how a humble human can fare against aliens, espers, time travelers and monsters and how far he can get just by saying the [[TrustPassword right words]] at the right time.
* BadassUnintentional: At least at first.
* BeleagueredAssistant: To Haruhi.
* BelligerentSexualTension: That's the whole point of the Kyon/Haruhi ship. Haruhi's a JerkWithAHeartOfGold, Kyon's a {{Tsundere}} who wouldn't dare beat up God. [[spoiler: Actually he's stopped by Koizumi when he moves to strike her.]]
* {{Bishonen}}: Just [[http://i55.photobucket.com/albums/g131/monkey1221/haruhi%20suzumiya/suzumiya7.jpg look.]]
* TheBigGuy: Per Haruhi, being the one who does grunt work for the group
* BishieSparkle: Once, during the second ''Endless Eight'' episode.
* BlatantLies: Uses one whenever he's caught with Yuki.
* BookDumb: Lampshaded by Kyon himself: ''"Why is it that I can be so smart when it comes to reading Nagato's facial expressions or Koizumi's hidden clues, but fail to answer every single test question?"''
* TheCallKnowsWhereYouLive: No matter how hard he tries, he just keeps getting dragged into everything.
* CassandraTruth: Kyon stutters out an explanation of the SOS Brigade to Haruhi in the prologue of ''Sigh''. She doesn't buy a word of it. Obviously.
* CatchPhrase: "Yare yare"[[note]]In English: "Good grief"[[/note]] [[spoiler:which he picked up from Sasaki]].
* CharacterDevelopment: As mentioned under PinballProtagonist Kyon goes from being incredibly BrilliantButLazy to much more assertive and active in the story's action. This is because his lack of action and over-reliance on the other SOS Brigade members (especially Yuki) lead to the events in ''Disappearance.''
* AChatWithSatan: His confrontation with...[[https://www.youtube.com/watch?v=bLea0MTifwo himself in the movie.]] Does he [[IJustWantToBeNormal just want to be normal]] or not? Make a choice and stop [[ContemplateOurNavels Contemplating Our Navel]].
* ChickMagnet: He seems to be one due to the fact all the girls like him. While most of the SOS girls have reasons he's the only guy they interact with, He's Haruhi's first friend ''since elementary school'' according to Taniguchi, Mikuru has [[spoiler: regulations that limit how much impact she can have on this [[TimeTravel timeplane]]]] and Yuki [[TheQuietOne won't talk]] to anyone unless she has to. Still, Tsuruya seems to [[FemaleGaze approve of him]] and there is [[spoiler: Sasaki]], so he seems to fit.
* TheChosenOne: Yuki, Mikuru and Itsuki all say that Kyon is "chosen" by Haruhi. Chosen for what? Nobody's sure, but the events by the end of ''The Melancholy'' gives one meaning that he is the only person in a supposedly boring world that Haruhi would rather be with.
* ChronicHeroSyndrome: Possibly the only reason he never pulls a ScrewThisImOuttaHere.
* ClassicalAntiHero: He starts out as one before developing into a KnightInSourArmor.
* ClosetGeek: He tries to downplay his hobbies, but it's shown that he's a avid manga reader, plays lots of video games, may be familiar with American cinema (in the anime he wears the wristwatch from Film/MenInBlack, and mimics [[Film/BackToTheFuture Marty McFly's]] sleeping position) and mentioned model-making as a hobby (with a focus on giant robots).
* CloudcuckoolandersMinder: Kyon hangs out with Haruhi mostly to keep an eye on her antics and stop them from going too far.
* ConsummateLiar: First word of advice with Kyon he's both easy to trick and a Tsundere so half of his dialogue is him lying.
* TheComicallySerious
* ConvenientlySeated: In the traditional second-from-the-back window seat when the seats change, and ''always'' right in front of Haruhi.
* CovertPervert: Overwhelmingly towards Mikuru. He does occasionally admit that he thinks Haruhi is [[MaleGaze nice to look at]] and sometimes does for Yuki as well.
* CrouchingMoronHiddenBadass: How the supernatural 'operatives' view him. He's a lazy, purely mortal high school student, with no training or prior knowledge of Haruhi. But he has the courage and freedom to act that they do not, and he ''will'' use it.
* DeadpanSnarker: Dear God, ''the'' DeadpanSnarker. Second only to the [[Franchise/SpiderMan Web Head]] and WesternAnimation/{{Daria}}, and just barely edging out the other one with his girlfriend's name.
** Taken [[UpToEleven to hilarious extremes]] in [[https://www.youtube.com/watch?v=C7bQG6LcMDY his version of Hare Hare Yukai]] in his ImageSong album, itself a sarcastic parody of the original song, where he keeps interjecting in between ''his own singing'' to snark at the lyrics.
** Just read the [[http://animetranscripts.wikispaces.com/Haruhi%3E25.+The+Adventures+of+Mikuru+Asahina+Episode+00 script for episode 0]]. Any text in blue is Kyon and is pretty much 100% free range organic snark.
* DidIJustSayThatOutLoud: Both the novel and the anime play with this. In the novel, Kyon's dialogue is very rarely formatted as such, leaving it indistinguishable from his usual narration. The only way to tell if he's either saying or thinking something is from his interlocutors' responses. The anime achieves this effect by having his mouth offscreen during these parts. In both cases, it is the audience that is meant to be confused, Kyon himself never makes the mistake.
* DidYouJustPunchOutCthulhu: Did you just French the Lord thy God? And in the second season of the anime, he literally tries to punch out God. And for his next trick, one must emphasize, he [[spoiler:''blackmails'' the ''[[SufficientlyAdvancedAlien Data Overmind]]'']]. Really, considering the nature of both Haruhi and the threats he faces, [[DidYouJustIndexCthulhu this entire index]] applies to him. Thankfully [[EndOfTheWorldAsWeKnowIt given what it would most likely lead to]], DidYouJustPunchOutCthulhu has thus far been averted (just).
* {{Dismotivation}}: One might ask if he's gonna be an AlmightyJanitor someday.
* EvenTheGuysWantHim: [[MemeticMutation Everyone is Itsuki for Kyon!]]
* FacePalm: Often does one anytime Haruhi brings up her crazy ideas for the SOS brigade.
* FemaleGaze: The Endless Eight arc just loves showing Kyon [[ShirtlessScene lacking upper body wear]], and in some shots he's noticeably more muscular than others.
* FauxlosophicNarration: The series is about 90% Kyon talking to himself.
* FilmingForEasyDub: Used in the anime to recreate the novels' lack of distinction between Kyon's thoughts, narration and speech.
* FirstNameBasis: With Haruhi.
* FirstPersonPeripheralNarrator: Either played straight or subverted; the former if you believe Haruhi is the main character, and the latter if you believe Kyon is the main character.
* FirstPersonSmartass: A variation of the character type, as even though he's very [[FauxlosophicNarration intelligent]] and [[LittleProfessorDialog literate]], he's BookDumb and rarely gets anything more than a B+.
* FlashbackNightmare: Though a daydream and not a nightmare, one of his [[AsleepInClass dreams in class]] is a word-for-word flashback of a conversation he had with [[ForgottenChildhoodFriend Sasaki]] about quantum physics.
** He also has dreams about the time he and Haruhi were trapped in Closed Space together.
** "Editor-in-Chief Straight Ahead!" suggests he has them about the events of ''Disappearance'':
--->I did not want to remember that bespectacled Literature Club member who wore a troubled face in front of an outdated computer at a time like this. Seeing her in my dreams at night is enough.
* {{Foil}}: Arguably the whole point of the Haruhi/Kyon relationship is how their opposing personalities come to a balance.
** Foil to the rest of the Brigade as well in certain ways personality wise, being the OnlySaneMan that glues the team together.
** Can serve as this to his more average friends too.
* FireForgedFriends: With Itsuki Koizumi. He initially dislikes and distrusts Koizumi, seeing him as a suck-up to Haruhi, does not initially even notice when Koizumi's class vanishes in the 4th novel, and the two seem to share a unstated mutual jealousy. Kyon starts warming to Koizumi as an ally around the 6th or 7th volume, and by ''Dissociation,'' the two boys have come to trust each other as allies, Kyon admits (internally) that he gets bored in the SOS Brigade clubroom without Koizumi there to play games with, and has even started tacking Koizumi's name unto the list of people he cares about (whereas earlier novels only listed Haruhi, Mikuru, and Yuki). They are still definitely VitriolicBestBuds, though.
* FreakOut: Has one for an entire day during ''Disappearance'' while he realizes what's going on.
* GrammarNazi: To give just one example, he always uses 訊く for "kiku" in the sense of "to ask". 聞く is the accepted norm, because although it isn't strictly correct -- it actually means "to hear" -- the character 訊 occurs rarely and is not taught in school.
* GratuitousEnglish: Dubbed in one instance into GratuitousJapanese.
* GrumpyBear: Always negative about everything... when most people would give anything to be in his position.
* GuileHero: Eventually becomes this. He achieves some truely impressive feats on this front as well, such as [[spoiler: blackmailing the Data Integration Thought Entity to keep it from taking Yuki away by threatening that he can convince Haruhi to use her RealityWarper powers to do all kinds of horrible things with only a single phrase.]]
* HardWorkHardlyWorks: The rest of the Brigade have been training their whole lives (or so it is implied, at least) to work with God and keep her from endangering the world. Kyon is an OrdinaryHighSchoolStudent who works with God because...she grabbed him by the collar and forced him to.
** If one subscribes to the theory that Aware!God!Haruhi consciously planned the series' events ForTheLulz, this turns into FridgeBrilliance. She knew that the supernatural races would try to manipulate Mortal!Haruhi, if only out of fear, so she created someone who would look out for her interests and interact with her as a human, not a god.
* TheHero: Given everything he does for the sake of maintaining the Universe and helping his friends, he's one of these; albeit one who complains a lot.
* HeroicBSOD: In TheMovie; when he's confronted with a normal world. Everything he's always said he wanted; and isn't happy; a mental version of himself pushes him down and tramples on him; mocking all the things he had said in the past; until Kyon rips out from deep inside himself that yes, he wants a world of time travellers, espers, and aliens.
* IJustWantToBeNormal: At first.
* ImpaledWithExtremePrejudice: In the fourth novel[=/=]TheMovie.
* InnerMonologue: All the time.
* IShouldHaveBeenBetter: His reaction to Yuki gaining emotions, and the consequences thereof. He notes that it's a ''really'' common plot, and as someone who prides himself on paying attention, he should have stepped in and spoken with her before things got out of hand.
* ItsAllMyFault: He feels personally responsible for the events of ''Disappearance'' as even though the Integrated Data Thought Entity failed to give Yuki a more complete personality (which put a strain on her) he decides that his over-reliance on her was the straw that broke the camel's back.
* JerkWithAHeartOfGold: Despite his snarky dismissal of, well, everything and everybody, Kyon is a deeply compassionate person who treats everyone equally and seriously in thought, if not in action. This applies whether they're a normal student, a [[WhatMeasureIsANonHuman living computer]], or God.
* TheLancer: His deadpan normal-seeking personality does contrast Haruhi's energic paranormal seeking.
* TheLeader: Type 2 'level headed'. The other three look to ''him'' more often for orders than Haruhi and even she listens to him occasionally.
* LastNameBasis: Refers to everyone by their last names apart from Haruhi. Even when asked by Mikuru to use her first name, he continues to use her last name.
* LemonyNarrator: He's already a DeadpanSnarker in general, and this naturally bleeds into his narration in both the light novels and the anime. He also serves as this when he plays the narrator in the SOS Brigade's movie, where he can't help but make sarcastic asides.
* LittleProfessorDialog:
** Even disregarding all the esoteric knowledge and vocabulary that very few 16-year-olds would be expected to know, Kyon's speech patterns make him sound ''much'' older, as though he grew up in the 1950s or '60s.
** The author himself lampshades this during an interview:
--->'''Nagaru''': In a sense he reasons philosophically although he is a first-year student of high school.
* MaleGaze: Makes his filming of the student film...interesting.
-->'''Kyon:''' [[Anime/NeonGenesisEvangelion Position target in the center, pull the switch.]]
* MeaningfulName: [[http://en.wikipedia.org/wiki/Cynic According to Wikipedia]], Kyon's nickname might come from κύων / kyôn, Ancient Greek for "dog", from where the word "cynic" may come from. Another possibility: Haruhi in the novels loves the story of Tanabata, involving a romance between a man and a woman separated and only allowed to meet once a year; the Korean name for the man can be romanized as 'Kyonu'. Kyon's real name remains undisclosed. This alone implies that it is relevant, and [[spoiler: Sasaki]] tells us the full name Kyon prefers is noble, and the sort which one would question the reasoning behind....
%%* MetaGuy
* MistressAndServantBoy: His relationship with Haruhi, to an extent.
* MoralityChain: The only reason Haruhi got any nicer is Kyon. And [[TheEndOfTheWorldAsWeKnowIt we don't wanna know what would happen if he died.]] Without Kyon around Haruhi's selfish, arrogant and domineering. With Kyon around she's... let's start that over. At the start of the series she's incredibly abrasive and thinks only of herself, but as the series goes on his influence on her leaves her as someone that is still annoying to be around, but at least a person that thinks of others.
* MrFanservice: Remote Island Syndrome and the Endless Eight arc in particular have him shirtless a lot.
* MyGodWhatHaveIDone: Kyon at first seems to constantly despise Haruhi's antics even though he begrudgingly goes with the flow. He often complains about wanting to have a perfectly normal life. Then in the Disappearance film and novel, [[spoiler: Nagato]] changes the world to more or less be a normal one without crazy stuff going on. After some soul searching within himself, he realizes that he prefers the crazy world after all.
** He also has one in the anime adaptation of ''Sigh'' after realizing [[DidYouJustPunchOutCthulhu just who he had nearly punched in a blind fury]] at the same time ''she'' invokes this trope (you can tell by how she's [[CryCute struggling to fight back tears]]).
** Also for the disappearance example he feels responsible because he was constantly relying on Yuki all the time to solve everyone's problems which he felt caused her FreakOut.
* NayTheist: He can't deny that the supernatural exists but prefer it leave him alone. He gets over it.
* NonActionGuy: When compared to Yuki or Itsuki, at least.
* NonActionSnarker: More snarky than violent or a fighter.
* NoNameGiven: For anyone in his family, [[OnlyKnownByTheirNickname including himself]].
* NotAMorningPerson: He'd always be LateForSchool if not for his sister's daily glomps.
* NotSoAboveItAll: Kyon admits to himself that he does, in fact, enjoy the crazy antics the SOS-Dan finds themselves in.
* NotSoDifferentRemark: From Taniguchi, he realizes in ''Sigh IV'' that Taniguch's complaining about the film is no different from his own complaining about Haruhi.
* NotWhatItLooksLike: One example of this happens when he's holding Nagato as Taniguichi walks into the classroom. He even tries [[BlatantLies a lie]] later to cover it, but Taniguichi doesn't believe him.
* ObfuscatingStupidity: Especially obvious in the novels, where we see even more of his thought process.
* OnlyKnownByTheirNickname: "Kyon" is just an irritating nickname his aunt once gave him and that his sister spread, that ended up sticking despite all his efforts to discourage it.
* ObliviousToLove: Kyon's (un)awareness of Haruhi's attraction to him is complicated to judge.
** On the one hand, there are a few points where his internal dialogue makes it clear that he's aware of it, which means that there is definitely some SelectiveObliviousness going on (required for stretching the WillTheyOrWontThey for ''ten freakin' novels''). For example, in "Live Alive," Kyon rejects Taniguchi's suggestion that they go try to pick up girls, precisely because there'd be huge trouble if "somebody" saw him doing that.
** On the other hand, there are places where Kyon acts in a way that seems genuinely oblivious to Haruhi's attraction. For example, in "Melancholy IV," Kyon suggests to Haruhi to "find [herself] a nice guy and go walking around the city looking for strange things; [she] could even call it a date and kill two birds with one stone," which is a very stupid (and maybe even cruel) thing to say if you realize that that was '''exactly''' what Haruhi had wanted to do with Kyon in the mystery search the previous weekend.
** This scene from "Remote Island Syndrome I" could go either way:
---> ''[Kyon wakes up to the sight of '''Asahina''' taking a photo of him]''\\
'''Asahina:''' I just took a picture of you waking up. And I took a couple of you sleeping. You were sound asleep, weren't you?\\
'''Kyon:''' ''[thinking]'' Really? Why would Miss Asahina want to take pictures of me sleeping?\\
'''Kyon:''' ''[still thinking, starts smiling]'' Maybe she wants to put a picture of me in a cute frame, keep it next to her bed and every night, just before she drifts off to sleep...\\
''[Haruhi brusquely takes away the camera from Asahina, who's been reviewing the photos, and puts it in her own pocket]''\\
'''Haruhi''': ''[to Kyon, interrupting his thoughts]'' What's with the goofy face? You might wanna stop 'cus you look like a moron!\\
'''Haruhi:''' ''[to everyone]'' I've temporarily given Mikuru the responsibility of being the SOS Brigade's photographer! It's important to maintain a record of the Brigade's activities for future generations. But I decide what pictures to take!\\
'''Kyon:''' ''[out loud]'' Why would anyone care what I look like when I'm sleeping or when I'm waking up?
** Itsuki [[LampshadeHanging points out Haruhi's attraction a few times]], once to tell Kyon that he and Haruhi are the new [[AdamAndEvePlot Adam and Eve]], and then later telling Kyon to embrace Haruhi from behind then whisper "I love you" into her ear. Kyon reacts angrilly, at which point Itsuki tells him it's a joke.
** ''Disappearance''!Itsuki, after having been told of the adventures the SOS Brigade has in the real world, remarks to Kyon that Haruhi took a genuine interest in the latter despite him having absolutely no powers or extraordinary traits, leading ''Disappearance''!Itsuki to whisper "I envy you" in contemplation of how fragile and ''superficial'' his own romantic relationship with ''Disappearance''!Haruhi is.
** Also made hilariously obvious in the prologue of ''Dissociation'' when Itsuki has to devote ''a couple pages'' explaining to Kyon that the reason Haruhi got upset after meeting Kyon's [[SheIsAllGrownUp childhood friend]] was because she was jealous.
* OnlySaneEmployee: Compared to everyone else in the Brigade who "works" to serve Haruhi.
* OnlySaneMan: He likes to think of himself as this, though it probably should be taken with a pinch of salt.
** It should also be noted that he accepts the eccentricities around him quite well. He claims it's because too much evidence has been thrown in his face for him to deny it, but overall he gets used to the idea of all this fantastic stuff around him much faster than any normal person would.
* OrdinaryHighSchoolStudent: Or so he would like to think. But the other SOS members, particularly Koizumi, constantly have to remind us that there's more to him than this trope alone.
** In the seventh novel Koizumi offers to train Kyon to be an esper. Apparently there are not a whole bunch of other persons who can be trained.
* PrecisionFStrike: From ''Disappearance'': "Tell them to go fuck themselves!" Watered down in the anime adaptation to "''Then you can tell them to go to HELL!''"
* RageBreakingPoint: ''Sighs'' has his patience repeatedly tested by Haruhi's bitchiness, particularly her shoddy treatment of Mikuru. [[spoiler:When Haruhi spikes Mikuru's drink, hits her over the head repeatedly, and openly calls her her "toy," Kyon snaps, furiously [[WhatTheHellHero chews her out]], and has to be physically restrained from [[WouldHitAGirl punching her lights out]]. ]]
* RidiculouslyAverageGuy: Kyon is essentially [[Administrivia/TropesAreTools the exception that proves the rule]] on this trope being an annoyance. He's a very average guy... but he's a ''realistic'' average guy, instead of the bland doormat other uses of this trope usually are. He actually hits that range of being easy to relate to because he completely avoids the pitfall of ThisLoserIsYou.
* RippleEffectProofMemory: In ''Disappearance''. [[spoiler:Yuki says at the end of the movie that while she couldn't prevent herself from rewriting reality, she COULD ensure that Kyon would be unaffected. The reason he needs protection when he goes back is because her failsafe was used up when Kyon chose to activate it at the READY? prompt. The program said that once it was run it would be deleted, so it time-travelled him outside the sphere of effect at his choice. Presumably had he chosen to stay, he would have subsequently be subjected to the re-write (as seen in the spin-off manga).]]
* UsefulNotes/RoleplayingGameTerms: In the novels, Kyon often makes tongue-in-cheek references to his HP and MP and Haruhi's negative effects on both.
* SavvyGuyEnergeticGirl: Savvy Guy to Haruhi's Energetic Girl.
* ScrewTheRulesImDoingWhatsRight: [[spoiler:Kyon's personal theory as to why Yuki granted him his RippleEffectProofMemory in ''Disappearance'', because he would choose to do the right thing and stop her despite being granted his fantasy]].
* SecretKeeper: He never breaks TheMasquerade, though he comes close in one of the Endless Eight episodes where he outright says Yuki is an alien to Haruhi, something she completely ignores.
* SensitiveGuyAndManlyMan: Manly Man to Itsuki's Sensitive Guy. This gets played with, as though he's one of the more badass characters in the series (even weaponizing Haruhi to prevent the Data Overmind from killing Yuki), he's more of a NonActionGuy than anything.
* ServileSnarker: He's very snarky towards Haruhi, who treats him as essentially nothing more than a slave and toy for her amusement.
* SharpDressedMan: His outfits in Endless Eight are of the casual variety but still incredibly sharp and stylish. He even manages to out-dress some of the girls.
* SheIsNotMyGirlfriend:
** With Haruhi. He does like Mikuru, [[spoiler: but is forbidden to date her due to her restrictions as a time traveler. Not to mention the one time he accidentally got a little too friendly with her, Haruhi [[TheEndOfTheWorldAsWeKnowIt nearly destroyed the world.]]]]
** Neither is Yuki, even if they were on the floor in a [[NotWhatItLooksLike compromising position]].
** And neither was Sasaki.
* ShipTease: With ''everyone'' in TheTeam, bordering on an UnwantedHarem.
* TheSnarkKnight: Kyon is this trope in spades. Most of his dialogue revolves around him being snarking over how the world literally revolves around Haruhi's whims.
%%* SpiderSense
* SitcomCharacterArchetypes: The most sane and serious, that is, to the point of humor at times.
* StableTimeLoop: Kyon is particularly careful about not screwing these up when he gets involved.
* StockLightNovelEveryman: He can be considered the TropeCodifier; he's an OrdinaryHighSchoolStudent who initially [[IJustWantToBeNormal has resigned himself to living an ordinary life]], but it isn't long before he finds himself roped into a club where the other members are definitely ''not'' ordinary. He's a major DeadpanSnarker (which extends to [[LemonyNarrator his narration]]) and often acts as the StraightMan to Haruhi's antics. He's also a NonActionGuy due to lacking any powers or fighting ability like Yuki or Koizumi, so he typically has to use his wits to get out of sticky situations.
* StraightMan: Kyon is always the one to call Haruhi out whenever she does something too ridiculous.
* StupidSexyFlanders: Fanboys are so hot for Kyon, and yet so doggedly heterosexual, that a GenderFlip version called "Kyonko" was made to satisfy the fantasy. At least one of the reasons for Kyonko's popularity involves the way [[DeadpanSnarker Kyon's personality]] just ''works'' for [[LittleMissSnarker her]].
* SupportingLeader: Mixed with AProtagonistShallLeadThem, resulting in SupportingProtagonist, since at first glance it may look like Haruhi is the main character (she is after all the poster girl) when [[POVBoyPosterGirl she's]] [[DecoyProtagonist not]]. It's patently obvious how much the other SOS Brigade members respect his judgment (even ''Haruhi'') and leadership to the point where some people think for all Haruhi's bluster it's actually Kyon who's calling the shots.
* SupportingProtagonist: When Haruhi dominates the spotlight on screen.
* SuspiciouslySpecificDenial: No, he doesn't have footage of Mikuru changing clothes nor feel any jealousy when Haruhi makes Itsuki the Deputy Brigade Leader. [[UnreliableNarrator Trust him]].
* TalksLikeASimile: His narration is littered with disturbingly descriptive comparisons.
* TallDarkAndHandsome: Dull appearance, but also quite attractive and good looking in school.
* TallDarkAndSnarky: Doesn't stand out, but is a DeadpanSnarker.
* TheTeamBenefactor: A variation. Haruhi makes him pay for their food wherever they go.
* TheTeamNormal: Subverted. While he insists that he's a normal person, Itsuki thinks otherwise.
* ThatMakesMeFeelAngry: For all of his emphatic narration, we rarely see Kyon show any emotion about anything at all. We can, however, expect entire paragraphs dedicated to his insistence that he's emotionally overwhelmed about something. This isn't to say he doesn't show emotions; merely usually not quite the ones he's talking about at the time.
* TrueCompanions: Starting around the third through fifth published books.
* TrueLovesKiss: Sort of.
* TrustPassword: Revealing to Haruhi that [[spoiler: he was John Smith]] will make her believe everything he says.
* {{Tsundere}}: A male Dere type who only gets angry when provoked. While he's endlessly exasperated by Haruhi's problematic personality, deep down Kyon thinks it's fun to hang out with her.
* UnfazedEveryman: Kyon does have one thing that sets him apart from everyone else: [[spoiler:[[TrustPassword He's John Smith]]]]. This fact puts him in BadassNormal territory, because it allows him to control Haruhi, Yuki's boss, and almost anyone who knows of Bamboo Leaf Rhapsody. It also explains why Haruhi gravitated towards him: [[spoiler:he's the reason she came to North High to begin with (she just doesn't know it yet)]].
* UnreliableNarrator: Essays can be written here.
* UnwantedHarem: It's perfectly easy to make the case that everyone in the SOS Brigade, ''even Itsuki'' (what with the [[ShipTease sheer amount of]] HoYay), is out for him. Though downplayed in that he actually WANTS Mikuru, who is '''not''' the archetypal "first girl" of the Harem. He has also expressed interest in Yuki. Most of all, he made out with Haruhi, which is followed by him cursing away at his subconscious, and noting that it doesn't take Freud to comprehend the dream.
* VitriolicBestBuds: With both Haruhi and Koizumi.
* WhatBeautifulEyes: At least according to [[spoiler:Kuyo, in her first coherent sentence ever.]]
* WhatMeasureIsANonHuman:Answer: exactly the same.
** He also treats the resident esper the same as he'd treat anyone with his... [[NoSenseOfPersonalSpace quirks]].
* WhatTheHellHero: While he normally snarks about what Haruhi is doing, he rarely truly objects. [[spoiler:However, all through the movie filming in ''Sighs'' he can be seen getting angrier and more upset with each passing scene while his snark gets more and more hostile. Eventually, despite Koizumi's efforts to hold him back for fear of the consequences, Kyon nearly hits her. While he ends up being stopped, it's clear to her that he intended to do it, which was upsetting enough on her part to nearly cause another catastrophic event and, after they make up, to start being less abusive.]]
* WhoNamesTheirKidDude: Apparently his real name is weird enough that he asked his parents about it. Seems there's a story behind it, though we don't get to hear it.
* WouldntHitAGirl: Haruhi seriously pushes it, once or twice. While he takes a hell of a lot of pushing for him to get that far, he will hit a girl if he ''really'' thinks that they deserve it. Such as when [[{{Jerkass}} Haruhi]] has been going [[UpToEleven above and beyond]] her [[BlackComedyRape usual abuse of Mikuru]] for days (at this point Haruhi has spiked her drink so that she will [[spoiler:be willing to kiss Itsuki, and possibly more [[ItsAllAboutMe knowing]] [[{{Jerkass}} Haruhi]]]] and is now [[RageBreakingPoint hitting the poor]] ''[[RageBreakingPoint drunk]]'' [[RageBreakingPoint girl over the head repeatedly to try to make Mikuru listen to Haruhi's directions]])) he finally snaps and goes to hit her to teach her a lesson, only failing to connect because Itsuki physically stops him. Everyone is shocked, none more so than Haruhi.
[[/folder]]

[[folder:Yuki Nagato]]
[[quoteright:230:https://static.tvtropes.org/pmwiki/pub/images/yuki_nagato.png]]
->'''Voiced by''': Creator/MinoriChihara (JP), Creator/MichelleRuff (EN)

-> ''"..."''

Yuki Nagato is a [[TheQuietOne severely quiet]] bibliophile and the only member of the Literature Club, from whom Haruhi takes over the SOS Brigade's new headquarters. She's quickly and unresistingly assimilated into the SOS Brigade, where she's described by Haruhi as their "invaluable silent character", and helps a great deal when the club is in need of TheSmartGuy. She also enjoys reading ScienceFiction and playing the strategy game ''The Day of Sagittarius III'' possibly a bit much (although she is ''very'' good at the latter).

[[TheReveal Actually]], she's an advanced ArtificialHuman RobotGirl controlled by a SufficientlyAdvancedAlien known as the Data Overmind, which exists on a mostly non-physical level. Her purpose (and that of her fellow Humanoid Interfaces) is to observe Haruhi and her RealityWarper powers. Her CharacterDevelopment stems from her continuing closeness to Kyon, to the point that her loyalty ultimately lies towards him and the SOS Brigade.

The author of the light novels has commented that Yuki is one of his favorite characters to make stories about, since {{Robot Girl}}s are easy to write CharacterDevelopment for, hence the number of short stories (and one whole novel) focusing on her emotional development.

* ArtificialHuman: She's called a "Humanoid Interface", though the precise details are somewhat obscured by copious amounts of {{Technobabble}}. The series itself references the ''Literature/HyperionCantos'' in relation to Yuki, suggesting that she is something like a cybrid (human body, alien intelligence). It seems that the non-corporeal alien Data Overmind (and later, the Canopy Dominion) created fully biological human bodies to house data-entities in order to interact with humans. Whether the data-entities that control these bodies are minds created by the Overmind or are extensions of its own intellect is rather unclear, as the series goes back and forth on exactly how much autonomy the Interfaces have.
* BadassAdorable: She seems quite huggable because of her quietness and lack of understanding when it comes to earth tech (among other reasons) but is easily the most powerful of the SOS besides Haruhi.
* BadassBookworm: Outside of Haruhi using her RealityWarper powers, Yuki is the strongest and most intelligent member of the SOS Brigade.
* BareHandedBladeBlock: Does it one handed, and saves Kyon this way when he was about to get knifed by Ryoko. It works, naturally, but it results in a ''really'' nasty cut in her hand.
* BattleButler: Not to be confused with the SOS's battle waitress.
* BeautyBrainsAndBrawn: Two ways, with the SOS-dan and also with the DITE agents.
** With the SOS-dan, she's the brains to Mikuru's beauty and Haruhi's brawn.
** With the DITE agents, she's the brains to [[spoiler:Emiri's beauty and Ryoko's brawn.]]
* BigEater: Or better said, ''fast'' eater. She doesn't consume very large meals, but those she gets to eat, she gulps them down ''fast''.
* BigFancyHouse: The huge sparse apartment in the anime is a downgrade from the three bedroom spread she has in the novels.
* BreakoutCharacter: She got her own SpinOff manga which takes place in an AlternateUniverse.
* CharacterDevelopment: Her development goes in the direction of emotions and individuality. In one of the later novels, she [[spoiler:refuses to synchronize with her self from a different time, in order to retain her individuality]]. She flat out ''says'' [[spoiler:"Because I don't want to."]] She also begins to treat the SOS-dan more akin to TrueCompanions, going from caring about Kyon in particular, to ''also'' caring about the rest of the members.
** Some of this may be due to Kyon becoming an expert Yuki watcher or projecting his feelings on what he sees from her. For example when he's feeling guilty about a date with Mikuru he sees Yuki as being colder than usual towards him.
%%** Aggresively averted in the spinoff. Her counterpart, who remains a static character the whole way through, the finale ensuring she doesn't develop.
* TheComicallySerious: See {{Understatement}} below.
* ConflictingLoyalty: Subverted. Yuki was created by the Data Overmind to observe Haruhi, but after a backup(Ryoko) influenced by another portion of the D.O. attempts to provoke Haruhi by killing Kyon, she not only stops it but switches her allegiance.
-->'''Kyon:''' Will another one like Asakura attack me?\\
'''Yuki:''' Don't worry. ''[beat]'' I won't let them.
* CovertPervert: Probably a byproduct of {{fanon}}, but still possible. Considering [[SuperPowerLottery the many ways]] she could have removed Mikuru's contact lenses in ''Sigh'', the one she chose was rather... [[LesYay suggestive]].
** That part had more with her having to remove the contact as fast as possible seeing as how [[spoiler: it was shooting deadly lasers at the time.]]
** There's also the incident in "Snow Mountain Syndrome" where each Brigade member encounters the apparition of another character who tries to seduce them. We later find out that Yuki sent the specters and the pairings are a coded message, which explains why, for example, Koizumi saw Kyon and Mikuru Haruhi. But that doesn't explain how the phantasms behaved.
* CreepyMonotone: Although... she's not creepy, especially when compared to [[UncannyValleyGirl Ryoko Asakura]]. Neither is the monotone, really. It's arguably part of the charm.
* DeusExitMachina: Kyon resolves to rely less on her. His wish is granted.
* TheDreaded: Both versions of Mikuru are ''terrified'' of her, and avoid interacting with her directly as much as possible. When forced to, even [[FutureBadass future Mikuru]] gets very quiet and withdrawn. It's implied that, unlike Kyon and Koizumi, Mikuru knows [[PhysicalGod exactly what Yuki is capable of]].
* DullSurprise: She ''is'' shown to be capable of emoting but cannot expresses them like how a normal human would, leading to this.
* EmotionlessGirl: Subverted, since she ''does'' have emotions, but was ill-equipped by her creator to actually express them. She's even aware of it herself, leading to some frustration and bitterness on her part that she ''still'' can't express. It can be quite pitiful.
* ExtremeDoormat: Starts out as this, changes significantly over the course of story.
* FirstNameBasis: Or rather, personal-pronoun-only basis toward Kyon.
* {{Foil}}: To Haruhi who is hotheaded and impulsive, while Yuki herself is calm and thoughtful.
** Also, to her counterpart in the Disappearance Arc.
** Her logical personality is a foil to the emotional Mikuru.
** Opposite of the bubbly and animated Ryoko who's actually a psychopath, while Yuki isn't deep down.
* FortuneTeller: Whose predictions are ludicrously specific and accurate.
* GamerChick: She's surprisingly more invested in the game "The Day of Sagittarius III" more than anyone else and turns out to be an absurdly competent player.
* TheGlassesGottaGo: When we are first introduced to her Yuki wears glasses. After her first fight with Ryoko Asakura to stop the latter from murdering Kyon, she loses her glasses and neglects to recreate them after restoring the classroom where the fight took place to how it was beforehand. Kyon quips that he doesn't really like glasses anyway, so she simply goes "I see" and doesn't bother with them from that point onward. It makes for a quick visual indicator of when we are in the story's timeline once time travel starts being a factor.
* GrewBeyondTheirProgramming: As a result of the time loop in “Endless Eight”, the accumulated experience breaks her out of her EmotionlessGirl existence, although indications are subtle up until ''Disappearance''. She still doesn’t actually ''emote'' all that much, but her interactions with the other members of the Brigade become more nuanced, and some of her actions are clearly based on ''selfish'' impulses separate from the wishes of her creators.
* HeroicRROD: [[spoiler:Appears to be dangerously close to one in the beginning of Book 10. She got better.]]
* {{Hikikomori}}: Sits in her room, in her high school uniform, for three years until finally attending that school.
* HilariousOuttakes: For the English dub: "I don't really have a glasses fetish." "What kind of a fetish do you have?"
* ICantBelieveAGuyLikeYouWouldNoticeMe: This is pretty much Alternate!Yuki's reaction to Kyon suddenly (from her viewpoint) taking ''any'' interest in her in ''Disappearance''.
* IJustWantToBeNormal: Kyon's interpretation of her motivation in ''The Disappearance of Haruhi Suzumiya''; Yuki being Yuki, whether she actually thinks this is left ambiguous.
* IllGirl: In stories set after the movie.
* InstantExpert: Of course.
* IWantMyBelovedToBeHappy: The ''fandom'''s interpretation of her motivation in ''The Disappearance of Haruhi Suzumiya'', she did give Kyon the Emergency Escape Program...
* LargeHam: Downplayed in ''The Adventures of Mikuru Asahina episode 00''. Keep in mind that Yuki's speeches usually come in two flavors: either brief response or {{Technobabble}}. While she's still monotonous in the movie, her lines would be very hammy were they spoken by anyone else. Whether this is HamAndCheese is up to interpretation.
-->"Please make your funeral arrangement for when next we meet it will be the last. Next time you may be certain that I will intend to take you down and destroy you without mercy".
* {{Leitmotif}}: [[https://www.youtube.com/watch?v=sj3LxG7Y-hw "Nagato's Confession"]].
%%* MagicalGirl
* MagicFromTechnology: Yuki's powers are described as "magic" but basically come from post-mechanical technology overwriting local reality. As a bonus, her "incantations" are Microsoft SQL scripts sped up and backwards.
* MeaningfulName: Yuki's given name is obviously meant to evoke "snow", especially given her hinted-at backstory and ImageSong, but is written with the kanji for "hope".
* MentalTimeTravel: She is incapable of changing her "location" in time, but she can sync her memories from any point along the timeline.
* NerdsAreSexy: Yuki and her large fanbase ''within'' the story.
* NeverGetsDrunk: Yuki is shown to be capable of downing several glasses of wine without so much as a stagger.
* NighInvulnerability: She survives getting impaled with about seven spears and a lance made of energy, and all it really does is tire her out a little. It's not technically invulnerability since she still gets injured, but its implied she can heal from pretty much any injury by rewriting her own data.
* NoSocialSkills: She was created with a limited set of social skills though [[CharacterDevelopment she has improved to an extent]].
* NotSoAboveItAll: Even Yuki has moments where she gives into just blatant silliness such as wearing her fortune-telling costume when it's not required, buying cheap play masks to wear at a festival, insisting on wearing her party hat while in the clubroom in the lead-up to the Christmas Party, or choosing a silly nickname for herself when Kyon blackmails Haruhi with one.
* NotSoStoic: In the AlternateUniverse, where she smiled at Kyon. Even before that she's visibly scared by Kyon's actions when they first meet.
* PhysicalGod: We still gotta find out what Yuki ''can't'' do. We know she won't change weather because it might screw up the environment. On a geological scale of time.
** In ''Melancholy'', she claims that she will not travel through time. [[spoiler:She prefers cross-temporal synchronisation]]. However, it's unclear if this means that she permanently lacks the ability to travel in time, whether she's generally capable of doing so but unable or unwilling at that time, or whether she simply hasn't learned how to do it (given her remark that time travel is "not difficult"). In ''Disappearance'', Nagato says that [[spoiler:she cannot accompany Kyon and future Asahina back to December 18 because she must stay and guard their time-frozen past selves in her guest room]], and for all we know, this may be the only reason for her statement in ''Melancholy''.
** In the novels after ''Disappearance'', [[spoiler:Yuki reveals to Kyon that she has voluntarily had the Entity restrict her time-related powers, because synchronizing with her future self robbed her of the ability to freely choose her fate.]]
** More or less, it seems she self-imposes a limitation not to cause any significant harm and maintain the {{Masquerade}}.
** Let's not forget the fact that she's capable of [[spoiler:OUTRUNNING LASERS!]]
* PrescienceIsPredictable
* ProperTightsWithASkirt: In ''The Disappearance of Nagato Yuki-chan''.
* PurelyAestheticGlasses: Until she loses the glasses.
* TheQuietOne: She's not very talkative.
* RealityWarper: One that's more in control of her powers. [[spoiler: She can snatch Haruhi's powers, making ''Haruhi'' powerless, but herself pretty much a PhysicalGod. Since this is Haruhi we're talking about, it could be argued that the only reason Yuki could do something like that is because Haruhi, on some level, allowed it to happen (because she wanted it that way, because she was bored, because doing so would be interesting, etc etc etc).]]
* ReiAyanamiExpy: A young-looking alien girl and some sort of ArtificialHuman with short purplish blue hair, dark amber eyes and pale skin who starts out emotionless, but comes to gain emotions as part of her CharacterDevelopment. Her name even puns on Rei's name: Yuki is a homonym for "snow" in Japanese, while "Rei" can also mean "cold", and "Ayanami" and "Nagato" are the names of two WWII Japanese warships.
* RidiculouslyHumanRobot: Passes as human, but robotic in personality and role.
* RippleEffectProofMemory: She's the only one who can remember what happens after each loop during Endless Eight.
* RobeAndWizardHat: And we all know it looks damn awesome on her.
* ScaryShinyGlasses and/or StoicSpectacles: Until she loses them, and Kyon comments that he's not into the glasses fetish anyway.
-->'''Yuki:''' ''[deadpan]'' What is a glasses fetish?
* SchoolUniformsAreTheNewBlack: Very rarely does she wear anything else (a notable exception is "Remote Island Syndrome").
* SecretKeeper:
** In "The Melancholy of Mikuru Asahina", she [[spoiler:helps Haruhi plot to give the boys Valentine's chocolates.]]
** In "Surprise," Kyon is shocked that Yuki refuses to give him a key piece of information about Yasumi (though she does confirm she's not a threat). She only insists that positive outcomes are more likely if Kyon remains ignorant. [[spoiler:She knew that Yasumi was Haruhi, and that Kyon would likely derail the plan if he was aware of it.]]
* ShorterMeansSmarter: She's the shortest member of the SOS Brigade and is arguably the smartest
* ShrinkingViolet:
** Only in the AlternateUniverse.
** Main sequence Yuki is always TheQuietOne and a bit of a {{Hikikomori}}. Has she actually said anything to the convenience store clerk?
* ShroudedInMyth: Her class treats her this way. Apparently, they firmly believe that if she says ''anything'' on any given day, something important will happen, for good or ill. This was before the school festival and her ridiculously accurate "fortunes."
* SilentBob: And I quote: "[[VisibleSilence . . .]]"
* TheSingularity: See MagicFromTechnology above. This actually makes her love for Scifi books an interesting quirk.
* TheSmartGirl: Haruhi's perception. Actually TheBigGirl, when you get down to it because of her controllable RealityWarper powers.
* SpinOff: Has an AlternateContinuity {{manga}} based on her called ''Manga/TheDisappearanceOfNagatoYukiChan'', roughly based on the ''Disappearance of Haruhi'' arc, if there weren't any interference.
%%* TheSpock
%%* SpockSpeak
%%* {{Squee}}: The 4th novel ''Disappearance''.
%%* TheStoic
%%* SufficientlyAdvancedAlien
* SugarAndIcePersonality: Although she comes across as emotionless, she is actually a kind and caring girl.
* SuperpowerLottery: Yuki's supernatural abilities are vastly more useful than Itsuki's (only useful in Closed Space) or Mikuru's (largely nonexistent). Kyon realizes at a few points that he's relying too much on Yuki to keep up the {{Masquerade}}, and resolves to ease up on her.
* SupernaturalGoldEyes: She has amber eyes, which hints at the fact she is an alien.
* SuperSpeed: She can move ''really'' quickly when she needs to. Probably the crowning example being when she [[spoiler:apparently blocked the lasers Mikuru was inadvertently shooting out of her eye. Any attempt at blocking the lasers would have required reflexes that are ''faster than the speed of light''.]]
%%* {{Technobabble}}
%%* TechnoWizard
* TimeLoopFatigue: [[spoiler:During the "Endless Eight" arc, she is forced to relive the same 2 weeks for approximately '''595 YEARS''' and she's the only one in SOS Brigade who remembers ''all of it''. Even though Nagato is the epitome of EmotionlessGirl, her exhaustion, stress, and sadness are way too easy to see. The resulting trauma is so serious that it eventually makes her steal Haruhi's powers and create an AlternateUniverse where everyone is normal and Haruhi is PutOnABus.]]
* TokenNonHuman: She's the only member of SOS Brigade who is an alien and artificially created.
* TrueCompanions: It is made obvious several times that she will ''not'' stay neutral when the Brigade members are in danger, even though her task is to simply observe.
* {{Understatement}}: Nagato's [[SilentBob laconic nature]], [[TheStoic lack of affect]] when she ''does'' speak, and way of explaining things in [[SpockSpeak overly technical terms]], can make even the most earth-shattering pronouncements seem rather trivial. This occasionally seems to mask a depth of feeling not present on the surface: after determining that [[spoiler: Kyon's old friend Nakagawa fell for her based on a misunderstanding]], she says it was "a little bit" disappointing. Coming from ''her'', this could easily be the equivalent of "devastated".
* TheUriahGambit: The Data Overmind can't ''directly'' retaliate at Nagato for ''Disappearance'' due to [[spoiler:Kyon. It can, however, elect her to be the "Ambassador" to the Canopy Domain, exposing her existence and sanity to something which is as alien to her as the Data Overmind is to humans. A lesser being would GoMadFromTheRevelation. Fortunately, if this ever ends in something seriously bad for Yuki, Kyon ''will'' retaliate, so the only thing they can really do is torture her, not eliminate her completely. At the end of ''Surprise'', she says she has been taken off the job of trying to contact the Canopy Domain and that a different interface will take over future attempts to contact the Canopy Domain, who Yuki believes would do the job much better than her; Yuki's job now is to merely observe the Canopy Domain's interface in addition to Haruhi.]]
* WhenSheSmiles: After ''Disappearance'', [[spoiler:Kyon chose the original world over the one Yuki made for him]] but admits in Intrigues that he still has small lingering doubts about his choice. [[spoiler:Wanting to see Yuki's smile again]] is part of the reason.
* TheWorfEffect: The threat posed by the [[spoiler:Sky Canopy Domain]] is illustrated by how quickly they can put poor Yuki out of commission. [[spoiler:Twice.]]
[[/folder]]

[[folder:Mikuru Asahina]]
[[quoteright:270:https://static.tvtropes.org/pmwiki/pub/images/mikuru_asahina.png]]
->'''Voiced by''': Creator/YukoGoto (JP), Creator/StephanieSheh (EN)

-> ''"That's classified information."''

Painfully shy, walked-upon, and adorable, Mikuru Asahina doesn't seem to serve much purpose on the show other than {{Fanservice}}, a rival LoveInterest for Kyon (and the one he actually ''expresses'' interest in), and being the much-abused subject of Haruhi's [[SkinshipGrope "admiration"]]. However, like the other characters, Mikuru has her own secret: she is a {{Time Travel}}er from an unspecified date in TheFuture, sent to study Haruhi like Itsuki and Yuki, since Haruhi is the source of a temporal disturbance [[ArcWords Three Years Ago]] that prevents time travel to any previous period.

Mikuru is, as far as the audience can tell, the least diligent in the whole "observe/control" Haruhi business. Indeed, she seems content to be the SOS Brigade's personal {{Meido}} (having an especial fascination with tea-brewing for some reason), deal with 21st-century culture shock, and endure Haruhi's [[BlackComedyRape constant molestation]] and enforced {{Cosplay}}. It's not that she's around [[MsFanservice solely for window-dressing]]. It's just that she's passive to the point of being TheChewToy. (And partly around for window-dressing).
----

** [[spoiler: It turns out that her omnipotence can actually be given to other people, when she gives it to Yuki.]]*

* RealityWarper: A unique take on this trope. Haruhi is an omnipotent being capable of bending reality, though she is not at all aware of this. The short list of people who are aware of this fact are her completely average and reluctant best friend Kyon, and a trio of supernatural creations of hers (and their respective employers). The four of them are forced to engage in random activities to keep her from getting too bored and causing The End of the World as We Know It by subconsciously wishing it were different. And telling her about her powers is not an option because who knows what she would do if she had conscious control.

* StoryBreakerPower: An extreme example. Haruhi is a RealityWarper who might possibly even be TheOmnipotent. There’s very little if anything that could ever be a legitimate threat to her as she subconsciously warps reality to suit her needs. The main conflicts of the series either come from trying to make sure Haruhi never discovers her power or come at times whenever [spoiler: Haruhi doesn’t have her powers.]] If she ever did discover them and used them to their full extent, [[EndOfTheWorldAsWeKnowIt there likely wouldn’t even be a story anymore.]]

* SubordinateExcuse : Haruhi uses this a lot to help out Kyon. It's her reason for staying in the hospital in Disappearance and she tutors him later in the novels. Interestingly, she can take care of Yuki because she's worried about her.

* UnwittingInstigatorOfDoom: If Haruhi ever learns the true extent of her powers and how they work, she could become this for the entire universe if it causes her to GoMadFromThe Revelation. Of course, given the [[SociopathicHero kind of person]] [[{{Jerkass}}she is]] it’s just as likely that the “Unwitting” part wouldn’t apply in that scenario.

* AmbiguouslyHuman: It’s been a subject of much debate both in and out of universe just what Haruhi actually is. Some believe her to actually be the [[God]] of her world, others believe that she’s just an extremely powerful human girl. Regardless, the fact that Yuki’s alien overlord could only interpret her as someone who “creates data” and nothing more clearly indicates that she is not normal.

* MistressAndServantBoy: Her relationship with Kyon since she orders him to do the club's grunt work.

* AmbiguousDisorder: Haruhi has displayed a number of traits that could be associated with a number of mental disorders, though nothing has ever been confirmed. Some of these include, [[ManipulativeBitch skills at manipulating others]], LackOfEmpathy, {[DidntThinkThisThrough impulsivity]], [[ControlFreak a constant need to control others]], [[{{Narcissist}} extreme narcissism]] and a [[HairTriggerTemper short temper.]] Whether she’s just anti-social, suffering from bipolar disorder, or borderline genuine sociopathy is anyone’s guess.

* {{Catchphrase:}}