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Characters / Haruhi Suzumiya

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These are the characters that appear in the Haruhi Suzumiya series of anime and light novels. A warning: this series is the poster child of tropes, so entries could get a bit long.

Also note that there are unmarked spoilers for the novel series as of this writingnote , so if you've only watched the anime, you might still be getting spoilers for future seasons.


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    Tropes common to all characters 
  • Barrier Maiden: The rest of the SOS Brigade hang out with Haruhi partly to prevent The End of the World as We Know It.
  • Beauty, Brains, and Brawn: 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.
  • Five Temperament Ensemble:
    • Kyon: Phlegmatic/Choleric
    • Haruhi: Sanguine/Choleric
    • Itsuki: Phlegmatic/Melancholic
    • Mikuru: Melancholic/Phlegmatic
    • Yuki: Leukine
  • Full-Name Basis: Anyone with a full name is almost always supernatural in some way. The rest get Only One Name, 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.
  • Invisible Parents:
    • No one seems to have parents, although this is justified in the case of Mikuru and the Humanoid Interfaces. Kyon's mother is mentioned, but she never appears on-screen (although both of his parents are on the first page of the manga).
    • Taniguchi's dad is mentioned in Disappearance.
    • Haruhi's parents are also mentioned (Melancholy V and the preview for book 10), we just never get to meet them.
    • Also understandable with Itsuki because he IS a transfer student.
    • Tsuruya mentions her father several times in Intuition.
  • Nice Mean And Inbetween: Out of the three girls, Mikuru is nice, Haruhi is mean, and Yuki is in-between.
  • Secret Identity: Four out of five SOS Brigade members, as well as all the other Aliens, Time Travelers, and Espers out there.
  • Town Girls: Haruhi is a boisterous, sporty Shorttank (Butch), Mikuru is a sweet, emotional Girly Girl (Femme), and Yuki is the Neither.

Main Characters

    Haruhi Suzumiya
Voiced by: Aya Hirano (JP), Wendee Lee (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, 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 "Spreading Excitement All Over the World With Haruhi Suzumiya 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 Reality Warper 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 Character Development which ensues within the SOS Brigade.

  • Academic Athlete: She is excellent at P.E. and does her homework effortlessly.
  • The Ace: 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 Bunny Suit. Justified due to her Reality Warper powers.
  • Adaptation Dye-Job: 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.
  • Admiring the Abomination: Her reaction when she sees the Celestials destroying everything in the Closed Space.
  • Agent Mulder: Or she'd like to be. Her inner Agent Scully keeps her from 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.
  • Allergic to Routine: She gets bored easily, leading to her changing things up at random.
  • Aloof Dark-Haired Girl: 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.
  • Ambiguous Situation: 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 rewrite the universe at the end of the first novel/season of the anime? Even the characters in-story don't know.
  • Aw, Look! They Really Do Love Each Other: Often has these moments with Kyon or Mikuru. 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 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", 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.
  • Bare Your Midriff: She does this a lot particularly during warm weather.
  • Belligerent Sexual Tension: That's the whole point of the Kyon/Haruhi ship. Haruhi's a Jerk with a Heart of Gold, Kyon's a Tsundere who wouldn't dare beat up the universe's equivalent of a deity. Usually wouldn't dare.
  • Berserk Button: 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.
  • Big Eater: 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.
  • Black Comedy Rape: While it doesn't go so far as outright rape, her constant groping and molestation of Mikuru is almost always Played for Laughs.
  • Black Hole Sue: An in-universe deconstruction. The plot literally revolves around her, but because of her Selective Obliviousness she never really seems to figure this out. Considering 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.
  • Blank Face of Shame: 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.
  • Book Smart: She gets excellent grades without any real effort.
  • Brainy Brunette: Good grades, brown hair.
  • Broken Ace: 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.
  • Broken Bird:
    • 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.
  • The Bully: Until about halfway through, she was definitely this character type. She constantly bullies Mikuru for her own amusement and for fanservice.
  • Bunny-Ears Lawyer: 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, as Kyon points out in the first chapter of Vol. 10. And she actually does wear bunny ears!
  • But for Me, It Was Tuesday: Everyone remembers Haruhi's Kick the Dog moment against the Computer Club president. Yep, everyone... except Haruhi herself.
  • But Not Too Bi: 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 Played for Laughs and Fanservice), she doesn't really show any romantic interest in other girls, and it seems as though only boys have confessed to her.
  • Can't Act Perverted Toward a Love Interest: Since Haruhi is usually a Shameless Fanservice Girl, 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.
  • Character Development:
    • "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.
  • Clingy Jealous Girl:
    • 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 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 and appears to have completely settled down into a open, friendly girl in the flash forward sequence of Surprise
  • Club President: Invoked by herself.
  • Compliment Backfire: Every attempt to compliment her fails and she can't stand criticism so she winds up in the arms of the Silent Snarker.
  • Cosplay Otaku Girl: Not your typical Otaku, but the girl loves her costumes. And her anime Shout Outs.
  • Cruella to Animals: Unfortunately, her bumbling henchman Kyon can't figure out how to get 101 hamsters.
  • Crucified Hero Shot: Gets one at the hands of Kuyo near the end of Surprise Vol. 2.
  • Cry Cute: In the anime rendition of the incident where 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 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 Rousing Speech after Mikuru starts crying before her.
  • Decoy Protagonist: Despite her being the title character and the person the story revolves around, Kyon, at volume 4 onwards, is clearly The Hero and he is only the Supporting Protagonist in the sense that the reasons for some of the strange stuff that happens is because of her emotional state.
  • Deicide: A near-victim of this during the climax of Surprise Vol. 2.
  • Defrosting Ice Queen: Happens in two stages (And we see a compressed version of it again in Disappearance). She starts off as a traditional Ice Queen, defrosts into a Jerkass and gets nicer from there.
  • Depraved Bisexual: In Kyon's own words: "IS STRIPPING ASAHINA NOT ENOUGH FOR YOU, YOU PERVERTED GIRL?!"
  • Desperately Looking for a Purpose in Life: Sheh wants to find something that would make her unique.
  • Did You Just Flip Off Cthulhu?: Gets a detention early on following the Playboy Bunny incident (not for dressing as a Playboy Bunny 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).
  • Ditzy Genius: For a girl as smart and generally talented as she is, Haruhi is capable of being incredibly dense at times.
  • Does Not Know How to Say "Thanks":
    • 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.
  • Dress Hits Floor: Done with her Kouyouen uniform in Disappearance.
  • The End of the World as We Know It: What the other three members of the SOS brigade fear would happen should something drastic happen, particularly to Kyon.
  • Even the Girls Want Her: 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 Mikuru's fantasy. Then again, which hallucination appears to which Brigade member is actually a formula worked out by Nagato to provide a clue to help them escape. Koizumi sees Kyon, and admits to being rather disturbed by the double's behavior. Sasaki has some Les Yay towards her as well.
  • Evil Laugh: 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 Heel–Face Turn.
  • The Face: 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 Character Development, 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 Pet the Dog.
  • Faux Action Girl: Invoked in-universe. She can deliver a flying kick to the head to the Chew Toy, 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.
  • First-Name Basis: With Kyon, though 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 Genki Girl personality, she refers to Kyon with no honorific whatsoever, which, particularly for a girl, indicates a remarkable degree of intimacy, similar to the traditional First-Name Basis in English.
  • Foil: Arguably the whole point of the Haruhi/Kyon relationship is how their opposing personalities come to a balance.
    • 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.
  • Friendless Background : Kyon is her first friend since elementary school according to Taniguchi. 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 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.
  • Friend to All Children:
    • 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 elementary school boy who just happens to be the future inventor of time travel.
  • Fun with Acronyms: 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 Lucky Star.
  • Genki Girl:
    • 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.
  • Giving Someone the Pointer Finger: She does this a few times in a non-homage context, because she's loud, brash, and doesn't care about personal space.
  • God-Mode Sue: 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.
  • God Is Dumb: She has no idea what she's doing to reality.
  • The Hedonist: Her goal in life is to make the world more exciting.
  • Heel–Face Turn: Chronologically, in Sigh after nearly getting the shit punched out of her by Kyon for spiking Mikuru's drink and calling her her toy.
  • Heel Realization: Suffers this in Sigh over her treatment of Mikuru, especially since Kyon was so furious at her for it that he had to be physically restrained from punching her out. Directly after this is one of her biggest Pet the Dog 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 fighting back tears.
  • High-School Hustler: One of the rare female hustlers.
  • Hot-Blooded: Particularly during her fight with Kyon during the SOS film about her abusing Mikuru.
  • Hot Goddess: She's pretty dang attractive, not to mention really physically fit. She's also a literal God-Mode Sue.
  • Inexplicably Awesome: 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.
  • I Just Want to Be Special: If only she knew she was truly a reality warper (or maybe it's better that she doesn't).
  • Important Hair Accessory: 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.
  • Important Haircut: Her hair is initially very long when she's first introduced, but after her first real conversation with Kyon she cuts it to its current length. Disappearance shows a version of her who didn't go to North High or become friends with Kyon, so she keeps her hair long.
  • Indifferent Beauty: 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 Bunny Girl while handing out flyers.
  • Inferiority Superiority Complex: As a child, her parents took her to a sports stadium. When she realized just how many people there were alive in just that stadium, she started to feel worthless and unremarkable. This is partly what led to her developing her Jerkass Large Ham persona that she uses to boss around the other SOS Brigade members, as well as her desire for an extraordinary life.
  • Informed Attractiveness: 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.
  • Insane Troll Logic: She will make extreme leaps of logic to make things fit her way.
  • It's All About Me: 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.
  • Jerkass: In the beginning of the series, until she eventually matures into a Jerk with a Heart of Gold.
  • Jerk with a Heart of Gold: After Character Development. 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.
  • Jumped at the Call: 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.
  • Karma Houdini: The most she ever pays for any of her jerky actions is Kyon's irritation, and even that doesn't bother her until Sighs.
  • Kick the Dog: 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 Heel Realization 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.
  • Precision F-Strike: In episode 2 of the anime, but it got bleeped. Unabridged quote below:
    Haruhi: Then I'll tell everyone at school that all you geeks ganged up on her and fucked her!
  • Prima Donna Director: She becomes one while the SOS Brigade is filming "The Adventures of Mikuru Asahina."
  • Private Tutor:
    • She tutors a number of kids from her neighborhood, including one who 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. In Surprise, when Kyon ends up a few years in the future, it's implied this plan worked.
  • Qipao: In one of the later light novels, she wears one of these.
  • Rapunzel Hair: When Kyon first met her. And waist length hair as a child.
  • Reality Warper: Although she doesn't realize it, which may be for the best.
  • Really Gets Around: 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.
  • Rebellious Spirit: Unconventional and breaks some social norms.
  • Red Armband of Leadership: Her trademark.
  • Reed Richards Is Useless: She could solve all the world's problems, but this would cause an overloading of excitement.
  • Renaissance Man: She's good at sports, bug catching, goldfish scooping, school, singing, and cooking.
  • Savvy Guy, Energetic Girl: Energetic Girl to Kyon's Savvy Guy.
  • School Idol: Held in awe by all the students, who don't understand why she's so distant.
  • Secondary Character Title: At first glance it may look like Haruhi is the main character (she is after all the poster girl) but she's not, and as seen in Decoy Protagonist above, Kyon is The Hero.
  • Serious Business: To Haruhi, everything is Serious Business.
  • Shameless Fanservice Girl: 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.
  • She's Got Legs: 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.
  • Ship Tease: With Kyon in Surprise, big time. 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.
  • Signature Headgear: She's well known for her yellow hairband with two matching ribbons attached to it.
  • The Sociopath: At the start of the series, her behavior fits almost every diagnostic criteria for Antisocial Personality Disorder; she steamrolls over everyone in her way for the sake of her goals, has an extreme Lack of Empathy 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. She gets better as the series progresses.
  • 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".
  • A Simple Plan: Form a club, pass out flyers, win a baseball game, make a movie. There must be a conspiracy sabotaging each of her simple plans.
  • Skepticism Failure: Haruhi causes skepticism to fail.
  • Skirt over Slacks: Briefly in Disappearance, when she's changing into Kyon's tracksuit. When trying to fit the skirt of her uniform underneath, she fails miserably, basically says "Ah, forget it!" and drops the skirt entirely.
  • Start My Own: Her motivation for this after Kyon talks to her a little about how people adapted or created things to suit their needs.
  • Stepford Smiler: 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 Cheshire Cat Grin in the anime in Melancholy VI after Koizumi explains it's the End of the World; we see her stalking around the school grinning.
  • Summon Magic: Every time Kyon copies one of her drawings, alien monsters appear.
  • Supreme Chef: Oddly enough, she turns out to be this as part of her Team Mom persona later in the books.
  • Team Mom:
    • 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.
  • The Teetotaler: 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!
  • Token Evil Teammate: Initially, she is often seen bullying and bossing around the other members of the SOS Brigade, especially Mikuru. She gets better after her Heel–Face Turn toward the end of Sigh.
  • Tomboy and Girly Girl: Tomboy to Mikuru's Girly Girl, if their contrasting reactions to playing in a baseball tournament (as seen in "Boredom") are any indicator. Also the Tomboy to Sasaki's Girly Girl.
  • Tomboyish Ponytail: 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.
  • Trash of the Titans: 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.
  • Tsundere: Haruhi is an inverted Tsundere, abusing people when she's happy with them and affectionately braiding their hair when she's about to rewrite the Universe out of jealousy. She plays it straight occasionally such as the conclusion of Disappearance. Nagaru Tanigawa, the series' creator, has said that he considers her "too energetic" to be a true tsundere.
  • Unbroken Vigil: She never leaves Kyon's side while he is hospitalized in Disappearance.
  • Villain Protagonist: At the start of the series, she was pretty much an egocentric Jerkass and sadist who was not above kicking the dog several times for her own amusement. She does get better over the course of the series though.
  • When She Smiles: 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 >:D expression she usually wears.
  • Who Wears Short Shorts?: Sometimes, most notably in "Bamboo Leaf Rhapsody", "Remote Island Syndrome", and "Endless Eight". The rest of the time she wears a Magic Skirt. One imagines she'll wear a long dress exactly one time.
  • The Xenophile: 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.
  • You Cannot Grasp the True Form: 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.

Voiced by: Tomokazu Sugita (JP), Crispin Freeman (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 bright but somewhat lazy Ordinary High-School Student who has given up his childhood fantasies of aliens, time travelers, espers, interdimensional travelers, Government Conspiracies, etc., as he explains in his opening narration on his first day of high school. He 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.

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 (maybe) young man caught up in extraordinary events. While he constantly bemoans the insanity he's been thrust into, he 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 True Companions, helping them prevent The End of the World as We Know It with a resigned sigh and a constantly suppressed panic.

Kyon presents himself in the narration as a levelheaded, objective, philosophical guy.

  • Accidental Pervert: Although his thoughts regarding Mikuru sometimes move toward Covert Pervert territory.
  • Action Survivor: Several times. One of the most dramatic ones being when he's attacked by Asakura, which causes some severe Mood Whiplash.
  • Agent Scully: 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 Agent Mulder.
  • Alternate Character Reading: 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...
  • Alternate Self: From the ninth novel on, the narrative is split into 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 Flash Sideways, thereby easily being able to recall his experiences in both timelines.
  • Aw, Look! They Really Do Love Each Other: With Haruhi, very frequently. 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", 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.
  • Badass Baritone: It's Crispin Freeman, what'd you expect?
  • Badass Boast: The message he gave to the Data Entity. "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.
  • Badass Bookworm: 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 recreate the world by telling Haruhi that he's John Smith.
  • Badass Normal: 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 right words at the right time.
  • Badass Unintentional: At least at first.
  • Beleaguered Assistant: To Haruhi.
  • Belligerent Sexual Tension: That's the whole point of the Kyon/Haruhi ship. Haruhi's a Jerk with a Heart of Gold, Kyon's a Tsundere who wouldn't dare beat up God. Actually he's stopped by Koizumi when he moves to strike her.
  • Bishōnen: Just look.
  • The Big Guy: Per Haruhi, being the one who does grunt work for the group
  • Bishie Sparkle: Once, during the second Endless Eight episode.
  • Blatant Lies: Uses one whenever he's caught with Yuki.
  • Book Dumb: 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?"
  • The Call Knows Where You Live: No matter how hard he tries, he just keeps getting dragged into everything.
  • Cassandra Truth: 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  which he picked up from Sasaki.
  • Character Development: As mentioned under Pinball Protagonist Kyon goes from being incredibly Brilliant, but Lazy 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.
  • A Chat with Satan: His confrontation with...himself in the movie. Does he just want to be normal or not? Make a choice and stop Contemplating Our Navel.
  • Chick Magnet: 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 regulations that limit how much impact she can have on this timeplane and Yuki won't talk to anyone unless she has to. Still, Tsuruya seems to approve of him and there is Sasaki, so he seems to fit.
  • The Chosen One: 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.
  • Chronic Hero Syndrome: Possibly the only reason he never pulls a Screw This, I'm Outta Here!.
  • Classical Anti-Hero: He starts out as one before developing into a Knight in Sour Armor.
  • Closet Geek: 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 Men in Black, and mimics Marty McFly's sleeping position) and mentioned model-making as a hobby (with a focus on giant robots).
  • Cloudcuckoolander's Minder: Kyon hangs out with Haruhi mostly to keep an eye on her antics and stop them from going too far.
  • Consummate Liar: First word of advice with Kyon he's both easy to trick and a Tsundere so half of his dialogue is him lying.
  • The Comically Serious
  • Conveniently Seated: In the traditional second-from-the-back window seat when the seats change, and always right in front of Haruhi.
  • Covert Pervert: Overwhelmingly towards Mikuru. He does occasionally admit that he thinks Haruhi is nice to look at and sometimes does for Yuki as well.
  • Crouching Moron, Hidden Badass: 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.
  • Deadpan Snarker: Dear God, the Deadpan Snarker. Second only to the Web Head and Daria, and just barely edging out the other one with his girlfriend's name.
  • Did I Just Say That Out Loud?: 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.
  • Did You Just Punch Out Cthulhu?: 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 blackmails the Data Overmind. Really, considering the nature of both Haruhi and the threats he faces, this entire index applies to him. Thankfully given what it would most likely lead to, Did You Just Punch Out Cthulhu? has thus far been averted (just).
  • Dismotivation: One might ask if he's gonna be an Almighty Janitor someday.
  • Even the Guys Want Him: Everyone is Itsuki for Kyon!
  • Face Palm: Often does one anytime Haruhi brings up her crazy ideas for the SOS brigade.
  • Female Gaze: The Endless Eight arc just loves showing Kyon lacking upper body wear, and in some shots he's noticeably more muscular than others.
  • Fauxlosophic Narration: The series is about 90% Kyon talking to himself.
  • Filming for Easy Dub: Used in the anime to recreate the novels' lack of distinction between Kyon's thoughts, narration and speech.
  • First-Name Basis: With Haruhi.
  • First-Person Peripheral Narrator: 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.
  • First-Person Smartass: A variation of the character type, as even though he's very intelligent and literate, he's Book Dumb and rarely gets anything more than a B+.
  • Flashback Nightmare: Though a daydream and not a nightmare, one of his dreams in class is a word-for-word flashback of a conversation he had with 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 Only Sane Man that glues the team together.
    • Can serve as this to his more average friends too.
  • Fire-Forged Friends: 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 Vitriolic Best Buds, though.
  • Freak Out: Has one for an entire day during Disappearance while he realizes what's going on.
  • Grammar Nazi: 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.
  • Gratuitous English: Dubbed in one instance into Gratuitous Japanese.
  • Grumpy Bear: Always negative about everything... when most people would give anything to be in his position.
  • Guile Hero: Eventually becomes this. He achieves some truely impressive feats on this front as well, such as blackmailing the Data Integration Thought Entity to keep it from taking Yuki away by threatening that he can convince Haruhi to use her Reality Warper powers to do all kinds of horrible things with only a single phrase.
  • Hard Work Hardly Works: 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 Ordinary High-School Student 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 For the Lulz, this turns into Fridge Brilliance. 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.
  • The Hero: 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.
  • Heroic BSoD: In The Movie; 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.
  • I Just Want to Be Normal: At first.
  • Impaled with Extreme Prejudice: In the fourth novel/The Movie.
  • Inner Monologue: All the time.
  • I Should Have Been Better: 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.
  • It's All My Fault: 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.
  • Jerk with a Heart of Gold: 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 living computer, or God.
  • The Lancer: His deadpan normal-seeking personality does contrast Haruhi's energic paranormal seeking.
  • The Leader: Type 2 'level headed'. The other three look to him more often for orders than Haruhi and even she listens to him occasionally.
  • Last-Name Basis: 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.
  • Lemony Narrator: You know you love him because of it.
  • Little Professor Dialog:
    • 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.
  • Male Gaze: Makes his filming of the student film...interesting.
  • Meaningful Name: 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 Sasaki tells us the full name Kyon prefers is noble, and the sort which one would question the reasoning behind....
  • Mistress and Servant Boy: His relationship with Haruhi, to an extent.
  • Morality Chain: The only reason Haruhi got any nicer is Kyon. And 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.
  • Mr. Fanservice: Remote Island Syndrome and the Endless Eight arc in particular have him shirtless a lot.
  • My God, What Have I Done?: 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, 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.
  • Nay-Theist: He can't deny that the supernatural exists but prefer it leave him alone. He gets over it.
  • Non-Action Guy: When compared to Yuki or Itsuki, at least.
  • Non-Action Snarker: More snarky than violent or a fighter.
  • No Name Given: For anyone in his family, including himself.
  • Not a Morning Person: He'd always be Late for School if not for his sister's daily glomps.
  • Not So Above It All: Kyon admits to himself that he does, in fact, enjoy the crazy antics the SOS-Dan finds themselves in.
  • Not So Different: From Taniguchi, he realizes in Sigh IV that Taniguch's complaining about the film is no different from his own complaining about Haruhi.
  • Not What It Looks Like: One example of this happens when he's holding Nagato as Taniguichi walks into the classroom. He even tries a lie later to cover it, but Taniguichi doesn't believe him.
  • Obfuscating Stupidity: Especially obvious in the novels, where we see even more of his thought process.
  • Only Known by Their Nickname: "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.
  • Oblivious to Love: 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 Selective Obliviousness going on (required for stretching the Will They or Won't They? 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 points out Haruhi's attraction a few times, once to tell Kyon that he and Haruhi are the new 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 childhood friend was because she was jealous.
  • Only Sane Employee: Compared to everyone else in the Brigade who "works" to serve Haruhi.
  • Only Sane Man: 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.
  • Ordinary High-School Student: 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.
  • Precision F-Strike: From Disappearance: "Tell them to go fuck themselves!" Watered down in the anime adaptation to "Then you can tell them to go to HELL!"
  • Rage Breaking Point: Sighs has his patience repeatedly tested by Haruhi's bitchiness, particularly her shoddy treatment of Mikuru. When Haruhi spikes Mikuru's drink, hits her over the head repeatedly, and openly calls her her "toy," Kyon snaps, furiously chews her out, and has to be physically restrained from punching her lights out.
  • Ridiculously Average Guy: Kyon is essentially 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 This Loser Is You.
  • Ripple Effect-Proof Memory: In Disappearance. 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).
  • Roleplaying Game Terms: In the novels, Kyon often makes tongue-in-cheek references to his HP and MP and Haruhi's negative effects on both.
  • Savvy Guy, Energetic Girl: Savvy Guy to Haruhi's Energetic Girl.
  • Screw the Rules, I'm Doing What's Right!: Kyon's personal theory as to why Yuki granted him his Ripple Effect-Proof Memory in Disappearance, because he would choose to do the right thing and stop her despite being granted his fantasy.
  • Secret Keeper: He never breaks The Masquerade, 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.
  • Sensitive Guy and Manly Man: 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 Non-Action Guy than anything.
  • Servile Snarker: He's very snarky towards Haruhi, who treats him as essentially nothing more than a slave and toy for her amusement.
  • Sharp-Dressed Man: 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.
  • She Is Not My Girlfriend:
    • With Haruhi. He does like Mikuru, 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 nearly destroyed the world.
    • Neither is Yuki, even if they were on the floor in a compromising position.
    • And neither was Sasaki.
  • Ship Tease: With everyone in The Team, bordering on an Unwanted Harem.
  • The Snark Knight: 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.
  • Sitcom Character Archetypes: The most sane and serious, that is, to the point of humor at times.
  • Stable Time Loop: Kyon is particularly careful about not screwing these up when he gets involved.
  • Straight Man: Kyon is always the one to call Haruhi out whenever she does something too ridiculous.
  • Stupid Sexy Flanders: Fanboys are so hot for Kyon, and yet so doggedly heterosexual, that a Gender Flip version called "Kyonko" was made to satisfy the fantasy. At least one of the reasons for Kyonko's popularity involves the way Kyon's personality just works for her.
  • Supporting Leader: Mixed with A Protagonist Shall Lead Them, resulting in Supporting Protagonist, since at first glance it may look like Haruhi is the main character (she is after all the poster girl) when she's 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.
  • Supporting Protagonist: When Haruhi dominates the spotlight on screen.
  • Suspiciously Specific Denial: No, he doesn't have footage of Mikuru changing clothes nor feel any jealousy when Haruhi makes Itsuki the Deputy Brigade Leader. Trust him.
  • Talks Like a Simile: His narration is littered with disturbingly descriptive comparisons.
  • Tall, Dark, and Handsome: Dull appearance, but also quite attractive and good looking in school.
  • Tall, Dark, and Snarky: Doesn't stand out, but is a Deadpan Snarker.
  • The Team Benefactor: A variation. Haruhi makes him pay for their food wherever they go.
  • The Team Normal: Subverted. While he insists that he's a normal person, Itsuki thinks otherwise.
  • That Makes Me Feel Angry: 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.
  • True Companions: Starting around the third through fifth published books.
  • True Love's Kiss: Sort of.
  • Trust Password: Revealing to Haruhi that 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.
  • Unfazed Everyman: Kyon does have one thing that sets him apart from everyone else: He's John Smith. This fact puts him in Badass Normal 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: he's the reason she came to North High to begin with (she just doesn't know it yet).
  • Unreliable Narrator: Essays can be written here.
  • Unwanted Harem: It's perfectly easy to make the case that everyone in the SOS Brigade, even Itsuki (what with the sheer amount of Ho Yay), 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.
  • Vitriolic Best Buds: With both Haruhi and Koizumi.
  • What Beautiful Eyes!: At least according to Kuyo, in her first coherent sentence ever.
  • What Measure Is a Non-Human?:Answer: exactly the same.
    • He also treats the resident esper the same as he'd treat anyone with his... quirks.
  • What the Hell, Hero?: While he normally snarks about what Haruhi is doing, he rarely truly objects. 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.
  • Who Names Their Kid "Dude"?: 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.
  • Wouldn't Hit a Girl: 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 Haruhi has been going above and beyond her usual abuse of Mikuru for days (at this point Haruhi has spiked her drink so that she will be willing to kiss Itsuki, and possibly more knowing Haruhi and is now hitting the poor drunk 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.

    Yuki Nagato
Voiced by: Minori Chihara (JP), Michelle Ruff (EN)


Yuki Nagato is a severely quiet, bibliophile Meganekko 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 The Smart Guy. She also enjoys reading Science Fiction and playing the strategy game The Day of Sagittarius III possibly a bit much (although she is very good at the latter).

Actually, she's an advanced Artificial Human Robot Girl controlled by a Sufficiently Advanced Alien 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 Reality Warper powers. Her Character Development 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 Girls are easy to write Character Development for, hence the number of short stories (and one whole novel) focusing on her emotional development.

  • Artificial Human: She's called a "Humanoid Interface", though the precise details are somewhat obscured by copious amounts of Technobabble. The series itself references the Hyperion Cantos 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.
  • Badass Adorable: 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.
  • Badass Bookworm: Outside of Haruhi using her Reality Warper powers, Yuki is the strongest and most intelligent member of the SOS Brigade.
  • Bare-Handed Blade Block: 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.
  • Battle Butler: Not to be confused with the SOS's battle waitress.
  • Beauty, Brains, and Brawn: 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 Emiri's beauty and Ryoko's brawn.
  • Big Eater: Or better said, fast eater. She doesn't consume very large meals, but those she gets to eat, she gulps them down fast.
  • Big Fancy House: The huge sparse apartment in the anime is a downgrade from the three bedroom spread she has in the novels.
  • Breakout Character: She got her own Spin-Off manga which takes place in an Alternate Universe.
  • Character Development: Her development goes in the direction of emotions and individuality. In one of the later novels, she refuses to synchronize with her self from a different time, in order to retain her individuality. She flat out says "Because I don't want to." She also begins to treat the SOS-dan more akin to True Companions, 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.
  • The Comically Serious: See Understatement below.
  • Conflicting Loyalty: 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.
  • Covert Pervert: Probably a byproduct of fanon, but still possible. Considering the many ways she could have removed Mikuru's contact lenses in Sigh, the one she chose was rather... suggestive.
    • That part had more with her having to remove the contact as fast as possible seeing as how 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.
  • Creepy Monotone: Although... she's not creepy, especially when compared to Ryoko Asakura. Neither is the monotone, really. It's arguably part of the charm.
  • Deus Exit Machina: Kyon resolves to rely less on her. His wish is granted.
  • The Dreaded: Both versions of Mikuru are terrified of her, and avoid interacting with her directly as much as possible. When forced to, even future Mikuru gets very quiet and withdrawn. It's implied that, unlike Kyon and Koizumi, Mikuru knows exactly what Yuki is capable of.
  • Dull Surprise: She is shown to be capable of emoting but cannot expresses them like how a normal human would, leading to this.
  • Emotionless Girl: 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.
  • Extreme Doormat: Starts out as this, changes significantly over the course of story.
  • First-Name Basis: 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.
  • Fortune Teller: Whose predictions are ludicrously specific and accurate.
  • Gamer Chick: 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.
  • The Glasses Gotta Go: 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.
  • Grew Beyond Their Programming: As a result of the time loop in “Endless Eight”, the accumulated experience breaks her out of her Emotionless Girl 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.
  • Heroic RRoD: 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.
  • Hilarious Outtakes: For the English dub: "I don't really have a glasses fetish." "What kind of a fetish do you have?"
  • I Can't Believe a Guy Like You Would Notice Me: This is pretty much Alternate!Yuki's reaction to Kyon suddenly (from her viewpoint) taking any interest in her in Disappearance.
  • I Just Want to Be Normal: Kyon's interpretation of her motivation in The Disappearance of Haruhi Suzumiya; Yuki being Yuki, whether she actually thinks this is left ambiguous.
  • Ill Girl: In stories set after the movie.
  • Instant Expert: Of course.
  • I Want My Beloved to Be Happy: The fandom's interpretation of her motivation in The Disappearance of Haruhi Suzumiya, she did give Kyon the Emergency Escape Program...
  • Large Ham: 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 Ham and Cheese 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: "Nagato's Confession".
  • Magic from Technology: 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.
  • Meaningful Name: Yuki's given name is obviously meant to evoke "snow", especially given her hinted-at backstory and Image Song, but is written with the kanji for "hope".
  • Meganekko: Subverted (and lampshaded).
  • Mental Time Travel: She is incapable of changing her "location" in time, but she can sync her memories from any point along the timeline.
  • Nerds Are Sexy: Yuki and her large fanbase within the story.
  • Never Gets Drunk: Yuki is shown to be capable of downing several glasses of wine without so much as a stagger.
  • Nigh-Invulnerability: 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.
  • No Social Skills: She was created with a limited set of social skills though she has improved to an extent.
  • Not So Above It All: 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.
  • Not So Stoic: In the Alternate Universe, where she smiled at Kyon. Even before that she's visibly scared by Kyon's actions when they first meet.
  • Physical God: 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. 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 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, 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 OUTRUNNING LASERS!
  • Prescience Is Predictable
  • Proper Tights with a Skirt: In The Disappearance of Nagato Yuki-chan.
  • Purely Aesthetic Glasses: Until she loses the glasses.
  • The Quiet One: She's not very talkative.
  • Reality Warper: One that's more in control of her powers. She can snatch Haruhi's powers, making Haruhi powerless, but herself pretty much a Physical God. 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).
  • Rei Ayanami Expy: A young-looking alien girl and some sort of Artificial Human with short purplish blue hair, dark amber eyes and pale skin who starts out emotionless, but comes to gain emotions as part of her Character Development. 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.
  • Ridiculously Human Robot: Passes as human, but robotic in personality and role.
  • Ripple Effect-Proof Memory: She's the only one who can remember what happens after each loop during Endless Eight.
  • Robe and Wizard Hat: And we all know it looks damn awesome on her.
  • Scary Shiny Glasses and/or Stoic Spectacles: Until she loses them, and Kyon comments that he's not into the glasses fetish anyway.
    Yuki: [deadpan] What is a glasses fetish?
  • School Uniforms Are the New Black: Very rarely does she wear anything else (a notable exception is "Remote Island Syndrome").
  • Secret Keeper:
    • In "The Melancholy of Mikuru Asahina", she 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. She knew that Yasumi was Haruhi, and that Kyon would likely derail the plan if he was aware of it.
  • Shorter Means Smarter: She's the shortest member of the SOS Brigade and is arguably the smartest
  • Shrinking Violet:
  • Shrouded in Myth: 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."
  • Silent Bob: And I quote: ". . ."
  • The Singularity: See Magic from Technology above. This actually makes her love for Scifi books an interesting quirk.
  • The Smart Girl: Haruhi's perception. Actually The Big Girl, when you get down to it because of her controllable Reality Warper powers.
  • Spin-Off: Has an Alternate Continuity manga based on her called The Disappearance of Nagato Yuki-chan, roughly based on the Disappearance of Haruhi arc, if there weren't any interference.
  • The Spock
  • Spock Speak
  • Squee!: The 4th novel Disappearance.
  • Static Character: Her Vanishing counterpart throughout the whole anime. The finale even ends with Status Quo Is God despite the universe not being reset.
  • The Stoic
    • A subtle moment occurs in Melancholy when Kyon takes her to the library. She's so joyously overwhelmed at the sight of so many books she practically floats away.
    • Kyon seems to make a habit of Yuki-watching and will ascribe emotions to her for actions of hers that he just barely discerns.
  • Sufficiently Advanced Alien
  • Sugar-and-Ice Personality: Although she comes across as emotionless, she is actually a kind and caring girl.
  • Superpower Lottery: 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.
  • Supernatural Gold Eyes: She has amber eyes, which hints at the fact she is an alien.
  • Super Speed: She can move really quickly when she needs to. Probably the crowning example being when she 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
  • Techno Wizard
  • Time Loop Fatigue: 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 Emotionless Girl, 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 Alternate Universe where everyone is normal and Haruhi is Put on a Bus.
  • Token Non-Human: She's the only member of SOS Brigade who is an alien and artificially created.
  • True Companions: 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 laconic nature, lack of affect when she does speak, and way of explaining things in 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 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".
  • The Uriah Gambit: The Data Overmind can't directly retaliate at Nagato for Disappearance due to 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 Go Mad from the Revelation. 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.
  • When She Smiles: After Disappearance, 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. Wanting to see Yuki's smile again is part of the reason.
  • The Worf Effect: The threat posed by the Sky Canopy Domain is illustrated by how quickly they can put poor Yuki out of commission. Twice.
  • You Gotta Have Blue Hair: Like all humanoid interfaces, she has a strange hair color—purple, in her case.

    Mikuru Asahina
Voiced by: Yūko Gotō (JP), Stephanie Sheh (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 Love Interest for Kyon (and the one he actually expresses interest in), and being the much-abused subject of Haruhi's "admiration". However, like the other characters, Mikuru has her own secret: she is a Time Traveler from an unspecified date in The Future, sent to study Haruhi like Itsuki and Yuki, since Haruhi is the source of a temporal disturbance 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 constant molestation and enforced Cosplay. It's not that she's around solely for window-dressing. It's just that she's passive to the point of being The Chew Toy. (And partly around for window-dressing).

  • Ambiguously Bi: She clearly likes Kyon, but also is rather responsive to Haruhi. In the novels, she appears to be smitten with Yasumi as well.
  • Anti-Hero: May or may not have her moments. Koizumi definitely originally thought she was faking her "moe" tendencies to manipulate Kyon.
  • Aw, Look! They Really Do Love Each Other: 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.
  • Bad "Bad Acting": As evidenced in The Adventures of Mikuru Asahina she's very stiff and awkward.
  • Butt-Monkey: Often due to Haruhi's antics.
  • Buxom Is Better:
    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.
  • Brainless Beauty: 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.
  • Celibate Heroine: 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 strange interest in Yuki in the 7th book. And is too embarrassed to look at Haruhi in a cheongsam later on.
  • The Chew Toy: She eventually ends up being Haruhi's literal chew toy. In the opening, she cries as Haruhi forces her to be a cheerleader. She can go either way in The Woobie Vs. The Chew Toy debate, depending on how sadistic the viewer is feeling at any given time, or how serious Haruhi's abuse of the moment is.
  • The Chick: Fights the least and symbolizes feminity in the Brigade. Good at being a stereotypical maid.
  • Cosplay: Against her will.
  • Curves in All the Right Places: In the light novels, Kyon describes her this way the first time he sees her wearing the bunny girl costume.
  • Cute Clumsy Girl: At times Haruhi expects her to act like this when serving as the SOS-dan's Meido.
  • Cuteness Proximity: 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."
  • The Cutie: An adorably pretty girl with a timid personality.
  • Defiled Forever: Mikuru worries that Haruhi's treatment may leave her ruined for marriage.
  • Demoted to Extra: From novel 10 on, she is mostly relegated to the role of serving tea while wearing her maid outfit.
  • Distinguishing Mark: Her mole.
  • Even the Girls Want Her:
    • 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.
  • Eye Beams: 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 Razor Floss, enormous metal spikes, and miniature black holes.
  • Extreme Doormat: 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 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.
  • Faux Action Girl:
    • Parodied.
      Kyon: Don't you have a laser beam or something?
      Mikuru: No, carrying weapons is forbidden!
    • And later Subverted. 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.
  • Feminine Women Can Cook: Perfect maid and good cook who is a girly girl.
  • Femme Fatale: At least Itsuki suggests this to Kyon.
  • Fetish: Haruhi wants to make her as 'fetishy' as possible.
  • Fire-Forged Friends: 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.
  • Fish out of Temporal Water: Mikuru Asahina is from a future that has passed The Singularity. 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.
  • Future Me Scares Me:
    • 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 lampshaded in a Season 2 dub outtake: "Look at these things, they move independently of each other!"
  • Gaussian Girl: Mikuru in a Yukata from Kyon's POV.
  • Girly Girl: Compared to all the other female characters, she is the girliest.
  • Girly Run: She runs like this in the season 2 intro song.
  • Heroic BSoD: She starts crying constantly and can barely speak after finding out what's happening in Endless Eight.
  • Hidden Depths: It may surprise you that she has an Image Song 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 Fridge Brilliance 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 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. It Makes Sense in Context.
  • Implausible Hair Color: 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.
  • Informed Attractiveness: She really is attractive, but given the way Kyon puts her on a pedestal sometimes...
  • Intimate Marks: She has a star-shaped mole on her right breast.
  • Light Feminine and Dark Feminine: 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.
  • The Load: When Kyon isn't carrying her unconscious body around, she's likely to be clinging to him to prevent his escape from the battlefield.
  • Locked Out of the Loop:
    • She suffers a Heroic BSoD in Volume 6 because her superiors are always giving her orders 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 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.
  • Loves Secrecy: Sometimes tends to say "classified information" in a playful way.
  • Meaningful Name: 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. Played up to the point of absurdity by Haruhi. The "Moe Mascot" who symbolizes "Moe" to many fans.
  • Ms. Fanservice: She was "recruited" (as in, literally dragged kicking and screaming) into the SOS Brigade by Haruhi 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.
  • Neutral Female: SOS Brigade Mikuru that is.
  • Nice Girl: She's usually a very innocent and kind girl.
  • Obfuscating Stupidity: 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.
  • Older Than They Look: 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.
  • Playboy Bunny: 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.
  • Pom-Pom Girl: When Haruhi forces her to be a cheerleader. She is seen with this outfit also in the anime opening.
  • Prone to Tears: Takes this to satirical lengths. Whenever Haruhi does anything vaguely harassing, she bursts into tears.
  • Proper Tights with a Skirt: Mikuru's the closest the SOS Brigade has to a Proper Lady, and guess who wears tights with her uniform during the winter months?
  • Pink Means Feminine: Wore pink kimono and the only one who wore a pink uniform, representing her as a girly girl, when battling the Computer Club President.
  • Rapunzel Hair: Waist length.
  • Reluctant Fanservice Girl: Haruhi is constantly trying to invoke tropes, and uses Mikuru for her appeal and tries to make her the Innocent Fanservice Girl, 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.
  • Shrinking Violet: Mikuru also has shades of this, as part of her Moe appeal.
  • The Singularity: Why Mikuru doesn't know how anything in the 21st century works - future society surpassed mechanical technology long ago.
  • Sparkling Stream of Tears: In opening credits. At least she has a reason, given what she's subjected to by Haruhi.
  • Team Pet: How Haruhi sees her: the club's moe mascot.
  • Tomboy and Girly Girl: 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. It's presently unknown what else might be.
  • Undying Loyalty: 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.
  • Vague Age: 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.
  • Yamato Nadeshiko: Her kind, nurturing, and being a proper maid fits most of the traits.

    Itsuki Koizumi
Voiced by: Daisuke Ono (JP), Johnny Yong Bosch (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?"
Haruhi Suzumiya (volume 1)

Itsuki Koizumi. New Transfer Student. Prodigious talker. Perpetual annoyance to Kyon, and toady to Haruhi. Also the wielder of (rather specialized) Psychic Powers 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 Contemplating His Navel, spouting Expo Speak, 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 manifestations of Haruhi's irritability in Closed Space, a sort of Phantom Zone.

Tropes associated with Itsuki:
  • Alternative Character Interpretation: Oh, so much. That he keeps his own emotions hidden behind 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...
  • Ambiguously Bi: His interactions with Kyon tend towards this, though he tells Kyon that he acts that way because it's how Haruhi expects him to. Doesn't stop the Ho Yay... 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.
  • Anti-Hero: Appears to be of the Pragmatic Hero 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 genuinely attached to the SOS Brigade, his love for his friends manifests in a willingness to kill to protect Kyon and Haruhi and yet he also lies to them on a regular basis.
  • Authority Equals Asskicking: 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 how he dealt with Fujiwara in combat, are anything to go by...
  • Badass Bookworm: He is in North High's top class. The badass part? See Authority Equals Asskicking.
  • Bad "Bad Acting": 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 the character he's playing in the play (Guildenstern from Rosencrantz and Guildenstern Are Dead).
  • Becoming the Mask: Whether or not he intended to genuinely care for the other brigade members, by "Snowy Mountain Syndrome," he has become genuinely loyal to and protective of his friends and the later novels give him opportunities to prove it.
  • Beleaguered Assistant: 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.
  • Beware the Nice Ones: He fights and apparently kills Fujiwara in the 11th book. And he does it with a smile.
    "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."
    He was saying this quite happily, but I think anger would be more fitting for his emotions.
  • Big Damn Heroes: 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.
  • Bishōnen
    Kyon: Was it a guy, or a girl?
    Haruhi: Could've been disguised, but for now he looked male.
  • Calling Your Attacks: In the Cave Cricket fight. His attack names are Shout Outs to the Full Metal Panic!! series produced by Kyoto Animation.
  • Character Filibuster: Koizumi frequently (ab)uses his role as Mr. Exposition as an excuse to fire off 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 I Was Just Joking 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 For the Lulz.
  • Chekhov's Gun: In the end of the Snow Mountain Syndrome, he said that he would betray the Organization exactly once to aid Kyon. We'll have to see when that comes to play.
  • The Chessmaster: He's the leader of The Organization. That should tell enough.
  • Cloud Cuckoo Lander: 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.
  • Contemplate Our Navels: He's very philosophical when talking about Haruhi.
  • Deadpan Snarker: Shows hint of being one in volume 8 and onwards.
  • Department of Redundancy Department: In the English dub he calls his situation in Endless Eight a "Never ending, endless summer."
  • Dissonant Serenity: Seemed fairly cheerful when informing Kyon of the situation during their time Haruhi's world-ending Closed Space in Volume 1. Even moreso in Volume 11, while confronting Fujiwara. Kyon even notes that Koizumi's still smiling when he's threatening Fujiwara, and thinks that a look of anger would be more fitting...
  • Extreme Doormat: Although he has plans of his own, he objects Haruhi's commands.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.
  • Eyes Always Shut: Zig-Zagged. The illustrations of the novels are fairly consistent with this, but the Animated Adaptation itself keeps them open just as if not more often, at least while he is speaking or doing other than standing around.
  • Fire-Forged Friends: 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 Vitriolic Best Buds way.
  • Friendless Background: 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.
  • The Gadfly: Seems to enjoy confusing Kyon and then annoying him by retracting the statement way too much. Also one explanation for his constant Ho Yay. Considering his strongly implied attraction to Haruhi, it could be his way of getting back at Kyon for his distant attitude towards her.
  • Guile Hero: Even though he does let Kyon handle most things, he is, by all rights, the leader of the Organization, if you believe Tachibana.
  • Hero of Another Story: 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 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.
  • Hidden Depths: He has a much darker, even violent side that manifests 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).
  • Homoerotic Subtext: 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.
  • Hypercompetent Sidekick: As Vice-President of the SOS Brigade, he is able to use his "connections" to pull together elaborate scenarios to keep Haruhi entertained.
  • Improbable Age: If Kyoko's words in Volumes 10 and 11 are anything to go by, he is the founder and the leader of the Agency. He would have been approximately twelve when he first created it.
  • I Want My Beloved to Be Happy: 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 Shipper on Deck for KyonxHaruhi if you don't believe the theory about his secret crush for Haruhi or his Ho Yay with Kyon.
  • I Was Just Joking: 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.
  • Jerk With A Heartof Gold: 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 Kyon comes to acknowledge.
  • Mr. Exposition: A trait that he seems at least aware of enough to 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 the source material; the simple fact that he was cast in that role Lampshades the hell out of this trope.
  • Mr. Fanservice: Shirtless in Endless Eight.
  • New Transfer Student: Haruhi wanted a 'mysterious transfer student.'
  • No Sense of Personal Space: The source of most of his Ho Yay.
  • Not So Similar: 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 even after she is revealed to be a Reality Warper. 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.
  • Not So Different: 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 orchid species to Hegel to other randomness and have learned to communicate by body language. Still totally Vitriolic Best Buds, though.
  • Number Two: In the Brigade rankings.
  • Perpetual Smiler: He's almost constantly smiling, something which tends to get on Kyon's nerves.
  • The Philosopher: Calm and wise.
  • Screw the Rules, I Have Connections!: Taken to near damn omnipotent level; he has so many connections that he can pretty much do anything that doesn't involve supernatural phenomena.
  • Sensitive Guy and Manly Man: Sensitive Guy to Kyon's Manly Man. This gets played with; he may be Ambiguously Gay 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.
  • Ship Tease: A bit of it with Kyoko Tachibana at the end of the eleventh novel.
  • Smart People Play Chess: ...only he's really bad at it.
  • Spot the Imposter: He notes that as he's basically a tool of Haruhi's subconscious, he can easily identify her in any situation. 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.
  • Teen Genius: He's involved with an organization that is more or less omnipotent in human terms. And according to Kyoko Tachibana, he's the head of it.
  • Touched by Vorlons: The vorlon in this case as she gave him his powers.
  • True Companions: He declares that he would choose the SOS Brigade over the Agency, effectively betraying them Heel–Face Turn style, should they turn out to be opposing to the Brigade.
  • Vitriolic Best Buds: 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. So he says.
  • Yes-Man: He agrees with basically everything Haruhi suggests.


Secondary Characters

    Ryoko Asakura
Voiced by: Natsuko Kuwatani (JP), Bridget Hoffman (EN)

Ryoko Asakura is the Class Representative 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 Alternate Universe stemming from Disappearance, she is a normal student and still the Class Representative of Kyon's class.

Interestingly, she has a good twin in The Disappearance of Nagato Yuki-chan; 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 (of Kyon), she tries to hide that.

  • Big Ol' Eyebrows: Among the largest of the cast, male and female.
  • Bitch in Sheep's Clothing: 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 Alternate Universe and its related spinoff (which, given the nature of The 'Verse, 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", then she stabs him for real, and then 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 he's our narrator, we may get a disproportionate view of it. Granted, 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".
  • Boxed Crook: In the 10th novel, Surprise, she does a Big Damn Villains, but she can only appear in certain circumstances.
    Ryoko: 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.
  • Class Rep: Popular and the class president.
  • Combat Tentacles: Those glowing appendages she forms are described as such at least by Kyon.
  • Cute and Psycho: She smiles happily while trying to stab a guy to death. Even after coming back from Yuki's deletion. Her kernel must be built around stabbing people or something.
  • The Dreaded: 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.
  • Evil Counterpart: To Yuki: in Disappearance, Kyon outright calls her Yuki's "shadow" after Asakura stabs him, and in the 10th novel, she even claims that she'll exist so long as Yuki does.
  • Eviler Than Thou:
    • Kuyo Suo of "the Anti-SOS Brigade" is even more deranged than Ryoko.
    • 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.
  • Faux Affably Evil: Admittedly she's more Blue-and-Orange Morality than out-and-out evil, but certainly her cheerful personality is only skin-deep.
  • Girl with Psycho Weapon: Truly insane and dangerous weapons.
  • Girly Bruiser: She's a bubbly girly girl who is a very skillful fighter and almost killed Kyon.
  • Girly Girl with a Tomboy Streak: She's very girly, being a Valley Girl in her school, but she also fights and isn't fazed with blood.
  • Go-Karting with Bowser: Part of the reason for her Ensemble Dark Horse status is that 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. Yuki temporarily stole Haruhi's 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 Knife Nut.
  • Graceful Loser: At her final moments while shutting down, she smiles and tells Kyon to enjoy life with Haruhi.
  • Hime Cut: 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 Class Rep.
  • Homoerotic Subtext: Starting in Disappearance she starts showing a weird fixation on Yuki, though some of it may be a result of 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 If You Ever Do Anything to Hurt Her... and I Want My Beloved to Be Happy.
  • Improbable Weapon User: A subversion of this. She uses a mundane weapon, which is pretty odd if you think about it. In the anime she uses a 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.
  • Let's Get Dangerous!: "Shifting to Termination Mode."
  • Letters 2 Numbers: Yuki(?) rewrites Haruhi's graphic to say 505. However 708 remains just an apartment number. (Unless it's short for Be On the Lookout).
  • Mask of Sanity: Seems like a nice popular girl, but truly insane.
  • Nominal Hero: As of Book 10. She's still the same Asakura, she just happens to be fighting on the same side as the Brigade now.
  • Not Quite Dead: Twice.
  • Psychopathic Woman Child: Insane with a girly voice.
  • Refused by the Call: 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.
  • Summon Magic: 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.
  • Token Evil Teammate: Fills Haruhi's shoes in that role, although Haruhi was actually more antagonistic than evil until her Heel–Face Turn in Sigh left a void that Asakura would eventually fill in Surprise Vol. 1.
  • Tomboyand Girly Girl: Girly Girl to Haruhi's, Yuki's, and Tsuruya's tomboys.
  • Uncanny Valley Girl: She keeps up that impeccable smile at all times. All times.
  • Unresolved Sexual Tension: With Kyon, of all people. Especially given the... imagery involved. 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."
  • Villainous Rescue: Saves Kyon from Kuyo in the 10th novel.
  • Well-Intentioned Extremist: 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. 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.

    Adult Mikuru 

Adult Mikuru

Voiced by: Yūko Gotō (JP), Stephanie Sheh (EN)

Mikuru's future self who appears several times to Kyon.

  • Anti-Hero: She can be quite morally ambiguous and manipulative at times.
  • Femme Fatale: More obvious than her younger version.
  • Future Badass: Maybe not badass, but Mikuru's future self is rather competent and self-confident, compared to her younger self. On the downside, she's a lot less morally clear.
  • Grew a Spine: The once shy and fragile girl is shown to be very self-confident in the future.
  • The Handler: 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.
  • Rapunzel Hair: Still retains the same length as her younger self.
  • Took a Level in Jerkass: Scheme reveals that the once Nice Girl will grow up to be one of the more manipulative characters of the series (even to the point of abusing her younger self) unless, as hinted at in the Sequel Hook 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.
  • Unscrupulous Hero: If not outright evil.


Voiced by: Yuki Matsuoka (JP), Kari Wahlgren (EN)

No one really knows what's up with Tsuruya-san, Mikuru's classmate, ersatz SOS Brigade member and something of a Sixth Ranger. 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 Genki Girl as Haruhi. She's also notable for her Cute Little Fang, Big Fancy House, tendency to point and laugh (very loudly), and for inspiring the Fan Webcomic and Memetic Mutation Sensation, 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.

  • Attention Deficit... Ooh, Shiny!: She is, needless to say, quite distractable (and hyper).
  • Big Fancy House: A traditional Japanese home that takes up an entire block. Then there's their ski house, which is slightly more sane, but still huge.
  • Cool Big Sis: In age and attitude; she dotes on her younger friends as if she is their big sister.
  • Crouching Moron, Hidden Badass: 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.
  • Cute Little Fangs: One at a time, but it flips from one side of her mouth to the other depending on the scene.
  • Dissonant Laughter: She laughs at all times—even during The Sigh of Haruhi Suzumiya when 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 Kyon tries to punch Haruhi.
  • Genki Girl: She manages to out-genki Haruhi.
  • Giving Someone the Pointer Finger: Tends to do this when she laughs.
  • Hero of Another Story: 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.
  • The Hyena: 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.
  • Motor Mouth: 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.
  • Nice Girl: Will be friends with anyone, unless they hurt Mikuru.
  • No Name Given: Only her family name is known.
  • Ojou: She doesn't act like it, but she's filthy rich. Her family is one of the backers for Itsuki's Organization.
  • OOC Is Serious Business: When she's not laughing when Haruhi abuses Mikuru during "The Sigh".
  • Rapunzel Hair: Long, and wide, too.
  • Saying Sound Effects Out Loud: See Verbal Tic below.
  • Ship Tease: With Kunikida in Book 11. Kyon notes that 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.
  • The Tease: 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.
  • Tomboy and Girly Girl: Tomboy to Mikuru's Girly Girl. Shares this status with Haruhi.
  • Tomboy with a Girly Streak: Athletic and bold like Haruhi, but way more hyper. A tomboy proud of her long Rapunzel Hair and doesn't mind a maid outfit.
  • Verbal Tic: "Nyoronote " 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.
  • You Gotta Have Blue Hair: Green. Interesting to note, she's the only character with an odd hair color who is not confirmed to be a humanoid interface.

    Emiri Kimidori 

Emiri Kimidori
Voiced by: Yuri Shiratori (JP), Hynden Walch (EN)

Emiri Kimidori is a mysterious student in North High and a Mysterious Watcher 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 Student Council President.

  • Adaptation-Induced Plot Hole: 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 she doesn't give a damn about anything that interferes with what the Entity wants, not even Yuki's personal safety.
  • All-Powerful Bystander: 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.


Voiced by: Minoru Shiraishi (JP), Sam Riegel (EN)

One of Those Two Guys and Kyon's main non-SOS Brigade friend. Both totally normal to all appearances, Taniguchi is a Big Eater and something of a teenage Casanova Wannabe who is implied to have dated Haruhi for exactly five minutes back in junior high.

  • Breakout Character: 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.
  • Casanova Wannabe: Oh boy. 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.
  • Chekhov's Gunman: 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. That girl was Kuyou Suou, who mistook him for Kyon.
  • Did We Just Have Tea with Cthulhu?:
    • 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 Locked Out of the Loop and just a Romantic False Lead.
  • Genki Girl: Or rather, Genki Boy, as he is very energetic, as lampshaded by Kyon asking him to 'rub some of his energy onto me (Kyon) sometime'
  • Shipper on Deck: For Kyon and Haruhi.
  • Those Two Guys: Though, he does get alot more scenes later on, and two character songs.


Voiced by: Megumi Matsumoto (JP), Brianne Siddall (EN)

One of Those Two Guys, Kunikida is Kyon and Sasaki's junior high friend, and receives no Character Development 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.

  • Hyper-Awareness: In Surprise, 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.
  • Sensitive Guy and Manly Man: Sensitive Guy Kunikida who is quite passive compared to Taniguchi who is loud and reckless.
  • Shipper on Deck: For Kyon x Sasaki. (In the novels at least.)
  • Ship Tease: He to North High so he can be with Tsuruya more often.
  • Those Two Guys: He is one of Kyons other friends, and but in the background than Taniguchi

    Kyon's Little Sister 

Kyon's Little Sister
Voiced by: Sayaka Aoki (JP), Kari Wahlgren (EN)

Kyon's Little Sister, known only as Imouto-chan, is a chipper little kid who occasionally tags along on her brother's sort-of-adventures, being a bit hyper but still better-mannered than most Annoying Younger Siblings. Since 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.

  • Annoying Younger Sibling: To Kyon, sometimes. As is often so in real life, not a view held by anyone else.
  • Captain Obvious: "Kyon-kun, your phone".
  • Cheerful Child: 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.
  • Cuteness Proximity: 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.
  • Genki Girl: 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.
  • Little Stowaway: 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.
  • Locked Out of the Loop: 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.
  • The Nicknamer: "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.
  • No Name Given: Kyon and all of his friends never call her anything except Imouto-chan (Little Sister).
  • Sixth Ranger: 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.
  • Super-Strong Child: 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.
  • Tagalong Kid:
    • 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 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.
  • Token Mini-Moe: An Unbuilt Trope. She isn't sexualized in any way, appears only sparingly, never steals the spotlight when she does appear, and annoys the hero because she acts her age. One would be hard-pressed to find an anime character with these traits in The New '10s.

    Computer Club President 

The Computer Club President
Voiced by: Nobuyuki Kobushi (JP), Dave Wittenberg (EN)

A nameless character who is the president of the Computer Society. His role in the plot is essentially The Chew Toy, 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. It must suck to be him.

  • Butt-Monkey: He's tipically on the receiving end of Haruhi's crazy antics when he's around.
  • Defiant to the End: In Day of Sagittarius he screams "Glory to the Computer Club!" when his ship is destroyed.
  • Defeat Means Friendship: 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 Yuki to become his successor.
  • Dynamic Entry: The receiver of it once he declares the Computer Society to be the SOS Brigade's rivals.
  • Large Ham
  • Laser-Guided Karma: 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.
  • No Name Given: The anime at least, plays with this by making Kimidori say his name, only to get cut off by the meowing of a cat.
  • Once Done, Never Forgotten: Everyone remembers how Haruhi blackmailed him into giving the SOS Brigade computers...except for Haruhi herself.

    Student Council President 

The Student Council President

Another character with No Name Given, he is the school's Student Council President introduced in The Indignation of Haruhi Suzumiya by Koizumi to give Haruhi an antagonist and to keep her from getting bored. He acts like a Bespectacled Bastard Boyfriend 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.

  • Armor-Piercing Question: 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?
  • Becoming the Mask: 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.
  • Corrupt Politician: 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.
  • Full-Name Basis: Or a Japanese variant thereon: he always addresses female students with the honorific "-kun," which is typically used for boys and young men. As That Other Wiki 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.

    Yasumi Watahashi 

Yasumi Watahashi

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.

  • Deus ex Machina: Literally, she was created by Haruhi's subconcious precisely in order to handily solve the plot.
  • Even the Girls Want Her: Mikuru certainly does.
  • Have We Met Yet?: Kyon recognizes her from somewhere, but cannot for the life of him remember where. 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." 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, Yasumi, which keeps the sense that Kyon was mishearing her.
    • She manages to keep up with Haruhi in a marathon, which should be literally impossible. Because she is Haruhi.
    • Every single member of the club instantly loves her, even Yuki. 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. Sounds exactly like the kind of thing Haruhi would say.
  • Genki Girl: Her energy even gets on Haruhi's nerves.
  • Literal Split Personality: To Haruhi, which explains why Kyon finds her so familiar.
  • Mary Sue: invoked She's friendly, likeable, is able to keep up with Haruhi in a marathon, can brew tea as well as Mikuru, ramble about philosophy as well as Koizumi, manages to vastly improve the SOS Brigade website in minutes, and earns everyone's trust instantly—even Yuki likes her. This is in-universe. She's a younger copy of Haruhi made to wield Haruhi's god-powers in the upcoming crisis, so she's pretty much literally a Mary Sue by the traditional use of the term: A self-insert character who solves all of canon's problems.
  • Moe: In-Universe, even Mikuru can't stand how adorable she is.
  • Moe Anthropomorphism: Of Haruhi's subconscious self.
  • Moment Killer: Deliberately interrupts Sasaki's meetings with Kyon, even though Sasaki couldn't bring herself to confess to Kyon the first time around.
  • No Pronunciation Guide: 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 Distinction Without a Difference.
  • Sempai/Kohai: As a first year, she's a kohai to the entire SOS Brigade. In the phone call, she refers to Kyon as "Sempai".
  • Significant Anagram: When her name is read in the proper reading (Yasumizu Watahashi), it can be rearranged to say watashi wa(ha) Suzumiya — I am Suzumiya.
  • Sixth Ranger: Albeit briefly.
  • Stalker with a Crush: 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. 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.
  • Tomboy and Girly Girl: Girly girl counterpart to her tomboyish foil, Haruhi.
  • Up to Eleven: Haruhi wishes the new member to be cuter than Mikuru, more polite than Itsuki, and more obedient than Yuki. She gets exactly that.



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.

  • Childhood Friends: With Tsuruya.
  • I Have Many Names: Aside from her real name, she is known as "T" to her classmates and is called "Lie" by Tsuruya.
  • The Nicknamer: 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.
  • Only Known by Initials: Sort of. T isn't so much an initial but rather a nickname that came from her first name.
  • Only Known by Their Nickname: The entire class calls her T because Ottilie Adrastea Hohenstaufen-Baumgartner is very long and hard to pronounce.



Voiced by: Kenichi Ogata (JP), Steve Kramer (EN, season 1) Michael McConnohie (season 2) (EN)

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

  • Contemplate Our Navels: He's awfully philosophical, at times when he can speak.
  • Meaningful Name: Shamisen (the instruments) use cat skin in their construction.
  • Unusually Uninteresting Sight: 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.

Remote Island Team


Keiichi Tamaru

Voiced by: Kazuhiko Inoue (JP), Dave Wittenberg (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.

  • The Driver: During his appearance in Intrigues, he drives a cop car with the skill that can only come from lots of experience.
  • Faking the Dead: 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.
  • Psychic Powers: As a member of the Organization with a full name, he's implied to be an esper, but that hasn't actually been confirmed.
  • Self-Made Man: His cover. It might even be true.


Yutaka Tamaru

Voiced by: Toshiyuki Morikawa (JP), Vic Mignogna (Main Series), Todd Haberkorn (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.

  • Accidental Murder: The script for Remote Island claimed that he got into an argument with his brother and accidentally stabbed him.
  • Impersonating an Officer: 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.
  • Psychic Powers: As a member of the Organization with a full name, he's implied to be an esper, but that hasn't actually been confirmed.


Hajime Arakawa

Voiced by: Akio Ōtsuka (JP), Michael Forest (EN)

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

  • The Driver: His appearance in Intrigues involves him driving the car chasing Mikuru's kidnappers, and Kyon even wonders if he's the one who drove the black cab Itsuki is occasionally seen riding around in.
  • The Team Normal: 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.
  • Papa Wolf: He is dangerously calm when Mikuru is kidnapped, and Kyon notes that he acts like she is his own grand-daughter.


Sono Mori

Voiced by: Akane Omae (Main Series), Chiaki Omigawa (Nagato Yuki-chan) (JP), Hynden Walch (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.
    • Alternately, she actually is a maid when not performing her duties for the Organization.
  • Psychic Powers: As a member of the Organization with a full name, she's implied to be an esper, but that hasn't actually been confirmed.
  • Vague Age: 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.

The Anti-SOS Brigade

    Anti-SOS Brigade
Clockwise from the top-left: Fujiwara, Kyoko Tachibana, Sasaki, and Kuyo Suo.

The "Anti-SOS Brigade" are The Psycho Rangers. While not nearly as cohesive as Kyon's True Companions, they've more or less allied for differing reasons.



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 The Spock and wishes to keep out of the God-business all the organizations have.

  • A-Cup Angst: 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".
  • Anti-Villain: Seemingly a Type I but really a Type IV.
  • Asexuality: Possibly; she sees emotions of love as a mental illness, but unlike Haruhi, claims never to feel them. It's a lie.
  • 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.
  • Chekhov's Gunman: She was mentioned offhand multiple times as Kyon's precedent for liking weird girls (even before most of the characters were introduced), and her name appears in Kyon's phone in the Disappearance movie (screenshots here); she doesn't actually appear until the ninth novel.
  • Contemplate Our Navels: This habit of hers can easily rival Itsuki's.
  • Evil Counterpart: 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.
  • Forgotten Childhood Friend: To Kyon and Haruhi.
  • Good All Along: Though she's introduced as Haruhi's Evil Counterpart, she's actually the only member of her group who isn't villainous at all. 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. It wouldn't have worked, but it's the thought that counts.
  • I Just Want to Have Friends: 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, 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.
  • Meaningful Rename: She notes that her family name was different in elementary school, but it was changed for some reason. This is why Haruhi didn't recognize her.
  • New Old Flame: Suddenly introduced as Kyon's 'close friend' in the ninth novel, but was foreshadowed in the first novel.
  • Refusal of the Call: She tells Kyoko she wants nothing to do with Haruhi's power.
  • Stop Worshipping Me: 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.
  • Suspiciously Specific Denial: Feels the need to bring up the topic again and again to remind Not Love Interest Kyon (and herself) that about the She Is Not My Girlfriend.
  • Token Good Teammate: Just as Haruhi was once the 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.
  • Tomboy and Girly Girl: Girly Girl to Haruhi's Tomboy. Ironically, she's the one that 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).
  • Unwitting Pawn: 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.

    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.

  • Reformed, but Rejected: Though she seems to genuinely regret being a part of the whole kidnapping Mikuru/Michiru thing, Kyon still doesn't trust her because of it.
  • Ship Tease: With Itsuki at the end of Novel 11.
  • Touched by Vorlons: As with the other espers. Her powers, however, came from Sasaki.
  • Wham Line: Delivers the main one in Dissociation: "We believe the existence of the real god is not Miss Suzumiya, but Miss Sasaki."

    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 Stringy-Haired Ghost Girl trope.

  • Artificial Human: She is an interface, after all.
  • Blue-and-Orange Morality: 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.
  • Creepy Monotone: Unlike Yuki's, hers is legitimately creepy.
  • Deicide: Serves as an accomplice to an attempted one.
  • Eerie Pale-Skinned Brunette: Combined with her design and personality, she definitely gives off this vibe.
  • Evil Counterpart: 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 none of her positive qualities and with all of her negative traits taken Up to Eleven.
  • Eviler Than Thou: She's worse than Ryoko Asakura AND Emiri Kimidori, although her definition of evil might be difficult.
  • Humanoid Abomination: She has the appearance of a human girl, but everything about her is described as being very alien and unnatural.
  • Memento MacGuffin: The only mildly humanizing element to her character is the fact that she kept the watch Taniguchi gave her, and even thanks him for it when she sees him again.
  • No Social Skills: Not played humorously either. She is so mentally alien that she literally has no idea how living things, let alone humans, act.
  • Rapunzel Hair: Reaches below her legs.
  • School Uniforms Are the New Black: Like Yuki, she doesn't seem to wear anything else.
  • Shadow Archetype: 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.
  • Starfish Aliens: 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.
  • Starfish Language: 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.
  • Stealth Pun: When Kyon asks if the Canopy Domain means overhead, Yuki points North, while sitting at North High.
  • Technically a Smile: As Kyon puts it, "the perfect simulation of a smile."
  • Uncanny Valley Girl: Everything about her just screams that there's just something wrong about her.
  • When She Smiles: Subverted; her smile is beautiful, but it's just not right.



Kyon believes this name to merely be a pseudonym, so he is commonly referred to as "that sneering bastard". The most villainous of the group, he is a Time Traveller who believes that Time Travel actually makes humans slaves to Causality.

  • Big Bad: Of "Intrigues of Haruhi Suzumiya", and also ends up as "Surprise of Haruhi Suzumiya"'s one too.
  • Deicide: Goes out of his way to make a very serious attempt on Haruhi's life at the climax of Surprise Vol. 2.
  • Evil Counterpart: 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.
  • Have We Met Yet?: To Mikuru in Novel 7.
  • Killed Off for Real: 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...
  • Long-Lost Relative: 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).
  • Knight Templar: He pretty much drops all claims to well-intentioned extremism after he tries to kill Haruhi.
  • No Name Given: For a while, he eschews names, and only adopts an obvious pseudonym at the insistence of the rest of the Anti-SOS Brigade.
  • Screw Destiny: He wants to prove that the future isn't dependent on predetermined events. He's right... maybe.
  • Smug Smiler: His perpetual expression is described as "an evil version of Koizumi's smile."


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