Here are the characters of ''LightNovel/ChuunibyouDemoKoiGaShitai''.

'''Note:''' Due to the divergent development of both the light novel and the anime, differences are highlighted.

!!Yuuta Togashi
->'''Voiced by:''' Creator/JunFukuyama (Japanese), Leraldo Anzaldua (English)

Back in middle school, Yuuta was himself a victim of "Chuunibyou Syndrome", fancying himself as the "Dark Flame Master", a goth guy clad in black who can wield dark-purple flames. Nowadays, though, he'd rather disassociate himself from it, which caused him to become stigmatized, thus come high school he moves away far enough to where his old classmates cannot find him. But his past still comes back to haunt him, one way or another, when he meets a girl still suffering from chuunibyou... who proceeds to blow his cover.
* AllTheOtherReindeer: The direct consequence of his overblown middle-school fantasies.
* BadassLongcoat: As the "Dark Flame Master".
* BandageBabe: A Bandage Dude to be exact; he used to wrap his arms as part of his "Dark Flame Master" persona.
* ChastityCouple: [[spoiler: With Rikka]]
* ChekhovsGun: Yuuta's collection of items related to his "Dark Flame Master" persona, which he originally planned on throwing away come tenth-grade, turn out to be useful whenever he has to distract and/or keep Rikka and Sanae preoccupied.
* {{Cloudcuckoolander}}: Used to be one during his "Dark Flame Master" days, going so far as to, in several ''Lite'' episodes, bring an unconcealed rifle out in public while accompanying Kuzuha's friend (but at least he's sensible to hide it in the presence of a cop). %%Episode 3 of season 1, and episode of season 5.
* ClassRepresentative: With Shinka, courtesy of Makoto's nomination.
* DeadpanSnarker
* DraggedIntoDrag: Rikka makes him [[spoiler:dress like a magical girl]] as a "punishment contract" and [[spoiler:to give Yuuta the outfit as a present for their one month anniversary together]]. Turns out that [[spoiler:[[WholesomeCrossdresser fits him quite well too]]]].
* DudeLooksLikeALady: Yuuta looks quite feminine, according to a few characters and, in the light novels, himself.
-->'''Isshiki''': "Hmm, itís disappointing! Why werenít you born as a girl?! Ah, but maybe youíll do if we put you in female clothing... how about it?"
* EatingLunchAlone: He usually eats lunch alone during middle school, due to being an outcast. Thus he considers Makoto's offer to eat lunch with him as a good start to a far more normal high school life.
* {{Fetish}}: In the ChristmasEpisode, Shinka makes Rikka dress in a SchoolSportUniform; when Yuuta asks for the reason, Shinka's answer is "I heard this is your fetish." Turns out it was Touka who told her.
* FirstLove: [[spoiler: Rikka]]
* GreenEyes
* {{Headdesk}}: Prone to frequently strike his head on the wall or table whenever he remembers another one of his chuuni-fueled rants.
* HellBentForLeather: His attire as the "Dark Flame Master", complete with TooManyBelts.
* HoistByHisOwnPetard: He thought he was safe to do his "Dark Flame Master" motion one last time at a secluded balcony at school before moving on. Alas, Rikka was watching all along.
* IdiotHair
* InnocentCohabitation: [[spoiler:Rikka moves in after his mother moves and Rikka's grandfather didn't hold the apartment.]]
* IJustWantToBeNormal: Sincerely hopes to leave behind his middle-school weirdness behind and spend his high school days in relative normalcy, by transferring to a high school far enough that no one from his old school would attend. He accomplishes that for the most part, but then came Rikka.
* IJustWantToBeSpecial: {{Deconstructed}}, as his old schoolmates plainly ignored him and he eventually got over his fantasies.
* LargeHam: In his "Dark Flame Master" persona.
* LoveEpiphany: [[spoiler:Has one in the later parts of the light novel, which is partially helped along by Isshiki's prodding.]]
* MemeticHandGesture: In his "Dark Flame Master" persona; he covers most of his face with his left hand.
* MrImagination: He was one, but now sees that as OldShame.
* NewTransferStudent: Although he starts his school year as scheduled, he was certainly a new face in town.
* OhCrap: His reaction when he realized that Touka had an audio clip of one of his rants as the "Dark Flame Master".
* OldShame: InUniverse -- he deeply regrets his days as the "Dark Flame Master".
* OnlySaneMan: What he desperately tries to remain once he gets paired up with chuunis like he used to be.
* OrdinaryHighSchoolStudent: Yuuta's ideal. Unfortunately, his past as a chuunibyou isn't so easy to shake off...
* PeekABangs: Used to cover his right eye with his hair as the "Dark Flame Master".
* PlayingWithFire: According to his chuunibyou persona, he can control dark-purple fire.
* PornStash: Keeps a bunch of them under his bed.
* RedOniBlueOni: The blue to Rikka's red.
* StraightMan
* TooManyBelts: Wears ''seven'' belts in his "Dark Flame Master" persona besides a normal one -- three around each leg and one on his collar.
* {{Tsundere}}: An occasional Type B.
* UnderstandingBoyfriend: [[spoiler: Toward Rikka and all her chuunibyou, childhood trauma of losing her father, and general eccentricity]].
* WouldHitAGirl: Ready to smack Rikka in the head -- or any girl for that matter -- whenever her delusions or mean-spirited selfishness [[spoiler: like in the case of Shinka]] run wild. In episode 2 of ''Ren'', he actually ''spanked'' Rikka for using up nearly all her (pretty high) allowances just to buy a pair of binoculars.

!!Rikka Takanashi
->'''Voiced by:''' Creator/MaayaUchida (Japanese), Creator/MargaretMcDonald (English)

A strange girl who wears a medical eyepatch over her right eye and has just moved into Yuuta's apartment building upstairs with her older sister Touka. Unlike Yuuta, Rikka indulges in her delusions even well into high school in the form of "The Wicked Eye", a goth-loli who wields a weaponized umbrella.
* {{Adorkable}}: As a result of her small and cuddly appearance awkwardly contrasting with her delusions of grandeur.
* AlternateCharacterReading: "Takanashi" means "little birds playing" as written and "no hawks" as pronounced.
* BadassAdorable: While the "badass" part is certainly illusory, she definitely fits into the "adorable" half.
* BandageBabe: Besides an EyepatchOfPower, Rikka also wraps her left arm with bandages.
* BreakTheCutie: Her dad's death had a traumatic impact on her, thus watching Yuuta and later creating her "Wicked Eye" persona is her [[{{Escapism}} coping mechanism]]. [[spoiler:Gets broken again at the end of episode 10 where the last support she has for her delusions, Yuuta, suddenly turns on her and tries to make her face reality right before they were supposed to perform at the school festival and ''not even a day'' after they had confessed to each other.]]
* CantHoldHerLiquor: Featured in Christmas OVA (Season 1, Episode 13) when she becomes drunk after eating three pieces of alcohol-laced chocolate cake.
* ChastityCouple: [[spoiler: With Yuuta]]
* ClingyJealousGirl: She starts to exhibit these traits once Satone, an old friend of Yuuta's, shows up in season 2, and gets a little too friendly with him.
* {{Cloudcuckoolander}}: Looks at the world through the lens of her fantasies in a near-constant basis.
* ContraltoOfDanger: In both English and Japanese dubs, she uses a deeper voice whenever she enters "chuuni" mode. This is more noticeable in English than in Japanese though. Her natural speaking voice is relatively high-pitched though.
* CryCute
* DoesNotLikeShoes: Downplayed in comparison with most Cloudcuckoolander examples, but she seems to be perfectly okay with leaving her house without shoes during her night escapades.
* DoesNotLikeSpam: Hates red fruit, especially tomatoes which she considers poisonous.
* ElegantGothicLolita: Suits herself up as one whenever her chuuni is in full swing.
* EverybodyHatesMathematics: Rikka is frankly ''terrible'' at it. While she lucks out in the anime due to the class average being lower than usual, in the light novels she has to retake the exams at least thrice, and passes ''none'', with her highest being 30/100.
* {{Expy}}: of [[Anime/{{Another}} Mei Misaki]], except being cuter rather than creepier.
* EyepatchOfPower: Rikka thinks her eyepatch is a seal to her "Evil Eye".
* FastRoping: Commonly uses this to go to Yuuta's apartment, which is directly below hers.
* FirstLove: [[spoiler: Yuuta]]
* GirlishPigtails: [[FashionableAsymmetry Only on the left side]].
* HairDecorations: Wears a yellow ribbon on her left pigtail, and black in her ElegantGothicLolita setup.
* IdiotHair: Also an [[ExpressiveHair expressive]] one. She considers her "antenna hair" to be her most attractive feature.
* InnocentCohabitation: [[spoiler:With Yuuta after her sister moves out and her grandfather loses the apartment.]]
* InsecureLoveInterest: Becomes one anytime she sees Satone around Yuuta during season 2. Doesn't help that Satone is also particularly aggressive in showing off her feelings towards him.
* KindHeartedCatLover: Keeps a gray cat called "Chimera", and attaches pink angel wings and a snake to it. Touka, [[PlotAllergy who is allergic to cats]], refuses to let her keep it in their room. Yuuta is taking care of it.
* LoveEpiphany: [[spoiler:Has one in episode 9, which is helped along by Shinka.]]
* MagicalEye: Only in her delusions. But she does wear a colored contact lens under her eye-patch.
* ManicPixieDreamGirl: For Yuuta.
* MsImagination: Through and through.
* NumericalThemeNaming: "Rikka" means "six flowers", going along with her sister's name.
* ParasolOfPain: Her WeaponOfChoice, stored in a gun holster strapped on her left thigh.
* ParentalAbandonment: [[spoiler:Her and Touka's father died three years ago, and their mother left them with their grandparents]].
* RedBaron: The Wicked Eye.
* RedOniBlueOni: The red to Touka's blue and blue to Sanae's red.
* TheRival: Becomes one to Satone in the second novel/season 2.
* SchoolSportUniform: She wears this outfit during the ChristmasEpisode on the suggestion of Shinka who in turn heard it from Touka because the latter claims that Yuuta would really like it.
* UnexpectedInheritance: In the light novels, [[spoiler:Rikka supposedly inherited her "evil eye" from her father before he died.]]
* VerbalTic: A dopey but enthusiastic "Ooooh!!" whenever she sees something she finds cool.
* WhenSheSmiles: [[ Weapon-Grade]] [[ Adorable.]]
* YouGottaHaveBlueHair
* ZettaiRyouiki: Rikka is a Grade A.

!!Shinka Nibutani
->'''Voiced by:''' Chinatsu Akasaki (Japanese), Creator/MaggieFlecknoe (English)

A beautiful, chuunibyou-hating girl in Yuuta's class who is also a transferee. In the anime, her attitude is explained as the result of her desperate attempts to erase all traces of her past as a chuunibyou herself, having went by the name "Mori Summer", a medium and writer of the "Mabinogion", her journal of faux-philosophical rants currently in Sanae's possession.
* AcademicAlphaBitch: In the first episode of ''Ren'', her classmates said Dekomori's grades were ''even better'' than she is. This implies her grades are also extremely strong, just not as high as Deko's.
* ActuallyIAmHim: In the anime, she tried to convince Sanae that she was "Mori Summer", if only to be able to confiscate the latter's copies of her own ''Mabinogion''. Fails miserably, because Sanae [[ExpectingSomeoneTaller expected someone befitting her "hero"]].
* AlternateCharacterReading: The kanji of her given name can also be read as "mori natsu" ("forest summer"), thus her chuunibyou alias "Mori Summer" in the anime. The light novel version of Mori''-sama''just took the first kanji.
* AmbiguouslyBi: The first episode hint at a possible crush on Yuuta. The Christmas Special OVA contains [[spoiler:an {{Accidental Kiss}} between her and Sanae.]] Throughout the second season [[spoiler: homoerotic subtext between her and Sanae continues]]. In episode 12 of ''Ren'', she remarks in the public bath how nice Rikka's breasts are with a pleased expressed on her face.
* BerserkButton: Any mention of chuunibyou, given her past as one, as well as (in the anime) Sanae's insult to her as a "Fake Mori Summer".
* BitchInSheepsClothing: She's not exactly a bad girl at heart, but she can get pretty snippy and mean every time the issue of chuunibyou is taken up because she's just that desperate to erase all traces of her own past as one.
* TheBully: [[spoiler:Towards anyone she regards as her moral inferiors.]]
* CassandraTruth: No matter what she tries to say or claim, Sanae absolutely refuses to believe she was "Mori Summer".
* CatchPhrase: Every time people bring up "Mori Summer" or catch her without her YamatoNadeshiko facade...
-->"Wanna get cursed to death?"/"I'll put a dark curse on you!"
* CovertPervert: She uses her own perverted thoughts regarding Yuuta and Rikka to trigger Sanae's Covert Pervert. Likes spying on people in relationships.
* TheCheerleader: Also a member of the pep squad as well as in Rikka's club. [[spoiler:She quits in episode 9, as she grows closer to Rikka and her friends.]]
* ClassRepresentative: With Yuuta.
* DramaClub: Later joins the school's drama club, which more or less gives her [[{{Cosplay}} an excuse to dress up in different costumes]].
* FirstKiss: [[spoiler: {{Accidental Kiss}} with Sanae Dekomori in Christmas OVA]].
* FleetingPassionateHobbies: She has moved between clubs in high school, from cheerleading to drama and now to the student government.
* {{Gainaxing}}: In the opening credits.
* HairDecorations: Wears a pink hair clip over her right bangs.
* {{Headdesk}}: In episode 8 of ''Ren'', [[spoiler:she started rolling on the ground when Satone mentioned she was been eating herbs, drinking tree saps, and trying to talk with birds in her Mori Summer days.]]
* IdiotHair
* ImprobableWeaponUser: She knows the easiest way to beat Dekomori in a fight or argument is to feed her milk or milk-based products like cheese.
* JerkWithAHeartOfGold: Or a heart of polished bronze, at least. She's a bully most of the time, but she occasionally helps out others and does things for reasons besides her own advancement.
* LackOfEmpathy: [[spoiler:In the light novel, she is very mean-spirited and selfish towards the feelings and needs of anyone who isn't of any immediate use towards her goals, Isshiki in particular.]]
* LickedByTheDog: [[ Literally]] in Episode 7.
* LovableAlphaBitch
* LoveFreak: During her "Mori Summer" days. [[spoiler:She still shows traces of it now.]]
* MsFanservice: The end credits and the Episode 7 BeachEpisode ''loves'' to remind us of her generous proportions.
* MsImagination: She was one.
* OldShame: InUniverse -- like Yuuta, Shinka resents her past life as "Mori Summer". ''Unlike'' him, however, she's not as good as him when it comes to facing the fact that her past will always haunt her.
* ReallySevenHundredYearsOld: Claims her "Mori Summer" persona to be this, as well as the "oldest mage in the world". The claimed age is inconsistent, ranging from the 400s to the 1,200s.
* RedBaron: Mori Summer in the anime, and Mori''-sama'' in the novels.
* SchoolIdol: {{Downplayed}}. She is without dispute the ''class'' idol, but nothing was mentioned beyond class 1-4.
* ShaggyDogStory: No matter how hard she tries to purge it, "Mori Summer" will always live on in [[HeroWorshipper Sanae's]] delusions. And to add insult to injury, Sanae won't even acknowledge Shinka as the real deal because she doesn't match up to her "Mori Summer" image. [[spoiler:At least until episode 4 of ''Ren''.]]
* ShesGotLegs: Especially obvious in her cheerleader outfit.
* ShipperOnDeck: For Yuuta and Rikka.
* SitcomArchnemesis: With Sanae.
* TeamMom: In the anime, it's very much evident that she cares a lot for Yuuta, Rikka, and Sanae, and takes it upon herself to help others with their personal problems.
* {{Tsundere}}: A/B hybrid -- B to complete strangers, A to the others, especially Yuuta, Rikka, and Sanae.
* VitriolicBestBuds: Has shades of this with Dekomori in the anime. They apparently hate each other, but somehow or rather always spend a lot of time together, albeit [[TheGloriousWarOfSisterlyRivalry at each others throat]].
* WeaksauceWeakness: Sanae can make her collapse from sheer embarrassment by reciting passages from the ''Mabinogion''.
* WhyDidItHaveToBeSnakes: While she's not all that afraid of them, she hates dogs. But they ''love'' her.
* YamatoNadeshiko: So her facade goes...

!!Kumin Tsuyuri
->'''Voiced by:''' AzumiAsakura (Japanese), Creator/EmilyNeves (English)

Anime-exclusive character. A sweet kid and Yuuta's upperclassman who's quick to fall asleep.
* AlternateCharacterReading: The kanji for her surname is written as "五月七日" (May 7) -- Tsuyuri being a festival that falls on that day. In Episode 2, Yuuta did mispronunce that as "Gogatsu-nanoka", and has to be corrected.
* BoyishShortHair
* CanonForeigner
* CrazyPrepared: Always keeps a pillow with her for whenever she feels the need to take a nap.
* HeavySleeper: She can fall asleep almost anywhere, whether on a train, in the clubroom, or even on the beach.
* HiddenBuxom
* HomeschooledKids
* IdiotHair
* NiceGirl
* OutOfFocus: Kumin appears less and less as time goes on and the plot becomes more focused on Rikka and Yuuta.
* SecondYearProtagonist
* {{Sleepyhead}}: And treats napping as SeriousBusiness.
* TakeUpMySword: She's not a Chuunibyou herself, but she enthusiastically acts like one when [[spoiler:Rikka stops being one.]]
* TalkingInYourSleep

!!Sanae Dekomori
->'''Voiced by:''' Creator/SumireUesaka (Japanese), Creator/BrittneyKarbowski (English)

Anime-exclusive character. A kid from the school's middle-grade department. Like Rikka, whom she met on the internet, Sanae also suffers from chuunibyou. She takes on the form of "Mjolnir Maul", a mid-range fighter who uses her long bola-resembling twintails to fight - which more often than not serve as hindrance rather than help. In the world of delusions, she then "switches over" to a gigantic hammer.
* AmbiguouslyGay: At the beginning of episode 10, when Rikka hugs her, she blushes and considers the thought of Rikka having feelings for her. The Christmas Special OVA witnesses her [[spoiler:talking in her sleep while having an erotic dream about her "Master" Rikka. She expresses despair while buzzed over Shinka not taking her interaction with her seriously. The {{Accidental Kiss}} between Shinka and her at the end of the episode begins recurrent homoerotic theme regarding them.]]
* BadassAdorable: Like Rikka, the "badass" part is debatable, the "adorable" part undeniable.
* BigFancyHouse: Revealed in the Bluray-exclusive Episode 13.
* BrattyHalfPint
* BreakTheCutie: [[spoiler:She doesn't take the not-Chuunibyou Rikka well.]]
* CanonForeigner
* [[CantHoldHisLiquor Can't Hold Her Liquor]]: Featured in Christmas OVA (Season 1, Episode 13) when she becomes drunk after eating three pieces of alcohol-laced chocolate cake.
* ClingyJealousGirl: Gets upset in episode 13 during the Christmas party because of the fact that Rikka and Yuuta are dating, and is drunk from alcohol-laced chocolate cake. And early on in season 2, doesn't take it too well that the two are living together due to Rikka losing her apartment. She also gets upset at Satone for getting too close to Shinka in episode 11 of season 2.
* {{Cloudcuckoolander}}: She has shades of this from time to time, but is actually quite intelligent as well.
* CovertPervert: She goes [[HighPressureEmotion beet red]] when wondering if Rikka and Yuuta are doing anything naughty, as suggested by Shinka.
* CrazyPrepared: [[spoiler:Well aware that the ''Mabinogion'' she's keeping can be destroyed, so she keeps copies. ''Online'' ones, that is.]]
* DitzyGenius: Despite being so deep in her delusions, she's still the top student in her grade. Yuuta and Shinka were utterly surprised.
* DoesNotLikeSpam: Hates ''any'' dairy products. [[ExploitedTrope And Shinka really takes advantage of that!]]
* DropTheHammer: Her "weapon" once her chuunibyou goes into full power.
* EpicFail: (See [[HoistByHisOwnPetard Hoist By Her Own Petard]] below)
* EroticDream: In the OVA, she has an erotic dream about her [[LesYay and "Master" (Rikka)]].
* ExpectingSomeoneTaller: Refuses to acknowledge Shinka as the girl behind "Mori Summer" because the former was expecting the messenger of love, not the jaded high-schooler desperate to purge her past delusions. [[spoiler:Well, until episode 4 of ''Ren'', when she recognized Mori Summer's hand bangle as seen online is the same as the one the latter photographed with Satone.]]
* FirstKiss: [[spoiler: {{Accidental Kiss}} with Shinka Nibutani in Christmas OVA]].
* GenkiGirl: Tends to get overly excited around Rikka.
* GirlishPigtails: Which she attempts to weaponize by turning them into bolas, though she usually just ends up getting tangled up in them.
* GreatBigBookOfEverything: ''Mabinogion'', a tome she "received" from a certain "Forest Summer" -- what Shinka used to be.
* GreenEyes
* HeroWorshipper: Worships "Mori Summer", author of the "Mabinogion".
* HimeCut: During her [[spoiler:de-chunnibyou state.]]
* HoistByHerOwnPetard: The usual result of using her improvised bolas is accidentally tying herself up.
** Or, in episode 10, she actually have ''difficulty walking'' as... she increased the mass of her bolas weight 4 times.
** In episode 4 of ''Ren'', she manages to successfully attack Nibutani, only to knock herself out when she inadvertently yanks Nibutani in to her.
* ImprobableWeaponUser: Uses her twintails, which end in improvised bolas, as her weapons.
** EdibleBludgeon: And it's filled with candy.
* LastNameBasis: Seemed to prefer to be called by last name, even among her classmates.
* MsImagination: In the same magnitude as Rikka.
* OlderThanSheLooks: She is just 143cm (4'8") tall.
* OpaqueNerdGlasses: {{Invoked}}; she wears them ''only'' when trying to read the ''Mabinogion''.
* ParodySue: Is rich and intelligent but lacks common sense.
* RapunzelHair
* RedBaron: Mjolnir Maul
* RedOniBlueOni: The red to Rikka's blue.
* SecretlyWealthy: In episode 12, Kumin mentions that Deko drove them. Cue them panning to a Mercedes-looking car with a stern looking {{MIB}} next to it. Then the club goes to her house for a Christmas party in episode 13, and she lives in a really large one...
* SheCleansUpNicely: No one recognizes her, but she actually turns out to be pretty good-looking when she has her hair down and acts like a normal person.
* SitcomArchnemesis: With Shinka.
* TheGadfly: She really enjoys irritating Yuuta and Shinka about their OldShame.
* ThirdPersonPerson: Sometimes talks like this.
* VerbalTic: Vocalizes the word "desu" to sound like "[[GratuitousEnglish death]]"[[note]]Japanese can't really pronounce the ending "th," so they vocalize that as "s." The difference between "desu" and "death," is more that of a tone.[[/note]].
** [[spoiler:She changes to "desu yo" after Yuuta brutally lectures her on reality.]]
* WeaksauceWeakness: Ingesting milk or any milk-based food item will stop her in her tracks.

!!Makoto Isshiki
->'''Voiced by:''' Creator/SoichiroHoshi (Japanese), Creator/GregAyres (English)

Yuuta's first friend in his new high school, who has a habit of profiling all the girls in their class.
* AmbiguouslyBrown: The final episode of season 2 makes him look literally black.
* AnimeHair: Blond and spiky in the first episode of the second season of the anime.
* TheAtoner: In Episode 6, [[spoiler:he shaved off his head and [[TakingTheHeat took the heat]] for the other guys in Class 1-4 for taking polls of the girls]]. This is to maintain [[CasanovaWannabe some kind of desirability among the girls]].
* BecauseYouWereNiceToMe: He seems to fall in love with Kumin because the latter found [[spoiler:his now bald head]] interesting to the touch.
* BromanticFoil
* ButtMonkey: While most of the main characters are unlucky, Isshiki is arguably the unluckiest. For example, [[spoiler:the poor fellow's attempts at wooing Kumin with the later never noticing one bit. Even better, when he finally does confess in episode 10, it's on a stage in front of the entire school, unfortunately [[HeavySleeper she was asleep at the time.]]]]
** While Yuuta will give the girls a smack or chop every so often, when it comes to Isshiki, he pulls out all the stops and just wails on him. It comes to a peak at episode 10, [[spoiler:where the poor guy gets kicked in the face, his head slammed into the floor multiple times, and '''comboed'''.]]
** This gets even worse in ''Ren'', where he also loses the little relevance he had and everyone forgets who he is.
* DoubleStandardRapeMaleOnMale: In episode 12 of Season 2, [[spoiler: it is heavily [[RapeDiscretionShot implied]] that [[DepravedHomosexual Chihiro]] rapes him in the changing room of the men's bath.]]
* CasanovaWannabe: If his hobby of profiling girls is any indication.
* HopelessSuitor: Towards Kumin, although that doesn't stop him from trying.
* LoveConfession: He gives one to Kumin in episode 10, but the latter was sleeping at the time.
* LoveLetterLunacy: He gets one at one point, and Shinka seems to verify that it came from a girl. However, due to him dropping his diary on the list of girls ranked by their cuteness, the boys in their class get in trouble with the girls for it, and he takes the blame, partly because it was his notebook, and partly because he wanted to look cool by taking the heat and punishment. As a result of it however, whoever wrote that letter understandably doesn't show up at the meeting place in the letter, although he's instead greeted by all the boys who worship him for taking the blame.
* ImportantHaircut[=/=]TraumaticHaircut: [[spoiler:He promised to shave his head bald as gesture of apology to Class 1-4 when his girl-ranking book was discovered. Turns out he doesn't want to go through with it, but is pestered by Shinka about his vow. Poor guy isn't happy at all, especially considering he had to deal with being bald for the past three years, and fears he will end up PrematurelyBald like his father. However, said trauma is minimized when Kumin pats his head due to not being able to resist touching his now bald head.]]
* {{Keet}}
* NoSenseOfPersonalSpace: At times he gets uncomfortably close to Yuuta. He also laid his head on the latter's shoulder, and immediately earns a couple of hits from it as a result due to Yuuta finding another guy doing that to him incredibly creepy.
* OutOfFocus: While he never had a lot of screentime in the anime in the first place, he's almost invisible by season 2.
* PrematurelyBald: [[spoiler:His father suffered from this (completely bald by 35) and he thinks he'd be the next according to his genes.]]

!!Nanase Tsukumo
->'''Voiced by:''' Creator/KikukoInoue (Japanese), Creator/CarliMosier (English)

Homeroom teacher for Yuuta, Rikka and Makoto's class.
* HotTeacher: Why of course, complete with Creator/KikukoInoue to voice her.
* GenreSavvy: When Rikka attempts to use GratuitousEnglish as a [[LoopholeAbuse loophole]] to have a "fifth" member joining their club, Nanase plays along, and speaks a lot of english as well. However, Rikka is unable to comprehend some of the words the latter uses, so pretends that said split personality went back. And since the "fifth" member isn't there anymore, she says they can't use that excuse to form their club.
* MeaningfulName: Her surname can be read as "99". May or may not count as a CastingGag, considering one of [[Creator/KikukoInoue her voice actress']] roles as [[Anime/GunXSword Carmen99]].
* ReasonableAuthorityFigure: She allows Rikka to form her club on the condition that they clean up a room. Although it takes a while due to the girls goofing off more than clean, she upholds her end of the deal and lets them form a club despite not having five human members at the time.
* SmarterThanYouLook: Of course, being a teacher, she's intelligent, but Yuuta notes that she can be quite cunning, as shown when she plays along with Rikka's delusions while the latter submitted her club formation form for her "Eastern Magical Nap Association".

!!Yuuta's Mother
->'''Voiced by:''' Creator/YuriAmano (Japanese), Beth Lazarou (English)

Mother of Yuuta, Kuzuha and Yumeha.
* GirlishPigtails
* GreenEyes
* OlderThanTheyLook: She might as well pass up for her children's older sister.
* OpenMindedParent
* PutOnABus: Moves overseas with her husband and daughters some time before ''Ren''
* UnnamedParent

!!Kuzuha Togashi
->'''Voiced by:''' Creator/KaoriFukuhara (Japanese), Creator/MonicaRial (English)

Yuuta's younger sister and a seventh-grade schoolgirl.
* TheBusCameBack: Returns at the end of episode 1.
* ADayInTheLimelight: ''Lite'' Episode 3, where she is accompanied by Yuuta (then still assuming his "Dark Flame Master" persona) while meeting a friend late at night.
* GreenEyes
* [[OnlySaneMan Only Sane Girl]]: During Yuuta's days as the "Dark Flame Master", particularly her focus episode in ''Lite'' Episode 3.
* PutOnABus: Moves overseas with her parents and little sister some time before ''Ren''
* SailorFuku
* SupremeChef: Her cooking is implied to be really good, especially in episode 9 of season 2 when she helps out at a beach restaurant owned by Kumin's aunt.

!!Yumeha Togashi
->'''Voiced by:''' Mami Shitara (Japanese), Ashley Miller (English)

Yuuta and Kuzuha's youngest sister and a five-year-old preschooler.
* CheerfulChild
* GreenEyes
* PutOnABus: Moves overseas with her parents and older sister some time before ''Ren''
* TokenMiniMoe

!!Touka Takanashi
->'''Voiced by:''' Creator/EriSendai (Japanese), Genevieve Simmons (English)

Anime-exclusive character. Rikka's older sister and a professional cook, with whom she has a not-so-good relationship, owing to the fact that she mostly serves as the serious foil to her insane antics.
* AlliterativeName
* AloofBigSister: {{Invoked}} and {{Lampshaded}} by her.
** Arguably a {{Deconstruction}}. Her aloofness results from her inability to handle her sister very well and her own emotional problems. As a result, she ends up hurting her sister more than helping when it comes to her time of need. Even she realizes this herself, and often asks Yuuta for help.
* CanonForeigner
* TheComicallySerious
* CrazyPrepared: Who would've thought she's keeping a clip of one of Yuuta's "Dark Flame Master" rants?
** Also, in Episode 7 she rigs the outside of the house with a trap because she predicted Rikka's escape attempt.
* TheCynic: Her attempts to bring Rikka back to reality has knocked any and '''ALL''' sense of wonder and romanticism towards life ''clean'' out of her; so much so that she sees nothing wrong with ''[[KickTheDog teaching innocent children]] [[RefugeInAudacity the harsh realities of broken family life]]'' while {{playing house}}.
* EstablishingCharacterMoment: Her first conversation with Yuuta, she described Rikka's delusions as problematic, forced her to get rid of the cat (to be fair, she has allergies) and blackmails Yuuta into taking care of it.
* HeroKiller: PlayedForLaughs, try as they might Rikka and co. can't land a finger on her.
* IdiotHair
* ImprobableWeaponUser: A ladle, which she can use with implausible skill both as a melee weapon ''and'' a projectile. (In Rikka's delusions, it's an gigantic ice-cream scoop.)
* IronChef
* JerkWithAHeartOfGold: She's abrasive, rude, cynical, and hurtful, but she really does have good intentions. She tries to help her sister, just not in the nicest ways.
* KnightOfCerebus: A non-villainous example. Despite being ComicallySerious, her arrival is often a sign that things are going to become sadder, as she tries repeatedly to bring Rikka back into reality, however harsh it may be.
* NumericalThemeNaming: Her given name means "ten flowers".
* ParentalAbandonment: [[spoiler:Like Rikka.]]
* PlotAllergy: Towards cats, so she coerces Yuuta to take "Chimera" in.
* PromotionToParent: After Rikka moves into her apartment.
* SlaveCollar: She wears one for no particular reason.
* StraightMan
** NotSoAboveItAll: Turns out she just as strange as Rikka in some ways.
* SupremeChef: Rikka may not like Touka much, but at least she appreciates her cooking.
** In episode 10, [[spoiler:it was revealed she would be sent to "the head restaurant in Italy" for training.]]

!!Satone Shichimiya
->'''Voiced by:''' Juri Nagatsuma (Japanese)

Appears in the second light novel and the second season of anime. Yuuta's chuuni friend from middle school who suddenly moved away. Yuuta mentions that she's probably the reason he got infected with chuunibyou. [[spoiler:Unlike Yuuta and Shinka, who have been cured from chuunibyou, and Rikka, who is infected but is unaware that she has the disease, Satone is completely aware that she is infected and is loving every moment of it.]] Her chuuni persona is Sofia Ring SP Saturn the 7th, or Sofia-chan, the Magical Demon Duchess.
* {{Adorkable}}
* ChildhoodFriendRomance: It's pretty obvious when she shows up in season 2 that she liked Yuuta back in middle school. Especially considering they hung out and did the chuunibyou schtick together. [[spoiler:Once she realizes that he forgot a lot about her, such as the arcade token, as well as dating Rikka, she becomes an UnluckyChildhoodFriend.]]
* {{Cloudcuckoolander}}: {{Invoked}}!
* FilleFatale: Tries to be one once when she [[spoiler:drops her skirt in front of Yuuta. She mentions that she was disappointed when he didn't want to look.]]
* GenkiGirl: Unbelievably.
* GirlishPigtails
* GreenEyedMonster: Revealed to be her motivation for [[spoiler:kidnapping Rikka and forcing Yuuta to play a game with her to get her back.]]
** That only applies in the light novels, however. In the anime, she's perfectly fine with everything. Until [[LoveEpiphany episode 10]] anyway...
* HopelessSuitor: [[spoiler:While she didn't have a chance anyway due to Yuuta dating Rikka by the time she shows up in season 2, she realizes she's fallen into this trope by episode 11 of season 2 after seeing how determined he was to find Rikka despite the latter being sick and still looking for the MacGuffin written in his notebook.]]
* IWantMyBelovedToBeHappy: [[spoiler:In episode 7 of season 2, she runs into Yuuta and Rikka during their field trip. After some mishap involving a monkey and her lost purse, Rikka sees her giving a coin to Yuuta, and runs off. After Satone realizes Yuuta forgot the meaning of the coin, she then attempts to make her peace with Rikka by claiming that he belonged to the latter, and that she would stay as a chuunibyou, and messages Yuuta so that he could find where Rikka was so they could spend the end of the day together alone.]]
* LoveEpiphany: She tells Rikka about the first time she felt hers in episode 7 of season 2. [[spoiler:She realized that she was starting to fall in love with Yuuta, and started to see the chuunibyou as foolishness, kind of like how he was at the start of the series going into high school. However, because he was still a hardcore chuuni at the time, she put up with it to be close with him until she moved away. Once she realized that he forgot a lot about her, and that she was inadvertently causing strife in Rikka and his relationship, she decides to [[IWantMyBelovedToBeHappy gracefully step out]].]]
* LoveHurts: [[spoiler:In episode 9 of season 2, she feels a tinge in her heart after helping Rikka renew her "powers". And in episode 10, several of the other girls confront her about her feelings towards him at the request of Touka. Then she asks some questions directly to Yuuta, and despite her reassurances of being resilient, his answers seem to knock her off her feet. And just when she thought she got over it, he runs back and offers her an umbrella, causing her to lash out at him and runs off.]]
* LoveTriangle: Involved in one with Yuuta and Rikka.
* MagicalGirl: What her chuuni persona seems to invoke.
* ManicPixieDreamGirl: Someone had to step in and screw with Yuuta's life.
* MsImagination: Of course. Although this is an {{invoked}} case as she takes fun in it.
* MurderTheHypotenuse: [[spoiler:A non-lethal example. She kidnaps Rikka in the second novel and makes Yuuta play a game with her where they have to break up if she wins.]]
* NewTransferStudent: [[spoiler:She transfers in to Yuuta and Rikka's school and class at the end of the second novel so that she can fight against Rikka, over various things.]]
* NoSenseOfDirection: Lampshaded by Yuuta in episode 7 of ''Ren''.
* SignatureLaugh: NYAHAHAHA!
* TheTease: She loves doing this to Yuuta, and usually in the presence of Rikka, causing the latter to display some ClingyJealousGirl emotions.
* VerbalTic: Somehow, she has a tendency to stick in ☆ into her sentences.
** [[SayItWithHearts Say It With Stars]]
* WhatIsThisThingYouCallLove: She suffers from this twice. Once when she and Yuuta were hanging out together, and later on when she moves into the apartment above his where Rikka stayed in the first season. She was somewhat unaware of why she felt this way until Shinka points it out to her, who only suspected it thanks to Touka having a hunch.
* ZettaiRyouiki: Appears to be a grade A. Could be Grade S if she would be a {{Tsundere}}.