List of Haruhi Suzumiya characters

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This is a list of the characters featured in the Haruhi Suzumiya franchise. The Haruhi Suzumiya series contains a multitude of other secondary, and minor characters who are introduced throughout the course of the series.

SOS Brigade members[edit]

The SOS Brigade is a club to investigate mysterious events. Among the members of the SOS Brigade are:

Kyon (キョン)
Voiced by: Tomokazu Sugita (Japanese); Crispin Freeman (English)
The narrator and main protagonist of the series. While his real name is never given, everyone calls him by his nickname "Kyon", given to him by his younger sister. Kyon is a high school student with a laid back and sarcastic attitude. He unintentionally runs into Haruhi and is the only normal human in the SOS Brigade. Even though Haruhi is the title character, the story is told through Kyon's viewpoint. Through narration and dialogue, he provides his insight, perspective, and opinions on events. Kyon is often annoyed by Haruhi's demands but thinks that a world without her would be uninteresting. Kyon is also "John Smith" from Haruhi's earlier memories and was the one who painted the hieroglyph in the field. Very early on, Yuki, Mikuru and Itsuki revealed what they are to Kyon, after which, they begin on many journeys throughout time and space. In an interview with Nagaru Tanigawa, the author admitted that Kyon was supposed to be portrayed as an esper in his original conception, but while writing The Melancholy of Haruhi Suzumiya, Kyon was instead changed into an ordinary student.[1] He is the main character of the spin-off series The Disappearance of Nagato Yuki-chan. He met Haruhi at that time, four years ago helping her draw the message in her school while naming himself "John Smith" but does not remember. In The Surprise of Haruhi Suzumiya, Kyon time leaps and briefly meets a college-age Haruhi with another version of himself on campus where the two appear to be close.
Haruhi Suzumiya (涼宮 ハルヒ, Suzumiya Haruhi)
Voiced by: Aya Hirano (Japanese); Wendee Lee (English)
Haruhi Suzumiya is the title character, the female protagonist of the series, and leader of the SOS Brigade whose energetic and eccentric character proves to be the driving force for the series. She has a mind for adventure which often leads her subordinates to be swept into her plans. While being smart, beautiful, and energetic Haruhi was eyed as an oddball ever since middle school: She set all the desks from her classroom out into the hallway, painted stars on the roofs, and even painted a huge hieroglyph on the school field (though this was later shown to be Kyon). Haruhi cannot stand boredom so she comes up with activities for the SOS Brigade, making them participate whether they like it or not. In the sixth grade, Haruhi felt she was no longer special after going to a baseball game and realizing she was one in a sea of people. After that she set out to make her life interesting and unique. What Haruhi does not know is that she has an outstanding power to change the environment around her as she pleases. By subconsciously using it, she gathers Mikuru Asahina, Itsuki Koizumi, and Yuki Nagato into one place: the SOS Brigade. The story is indirect in saying how much Yuki, Mikuru and Itsuki know about each other.
In an interview, Tanigawa stated that the idea for the character came during a sleepless night at the beginning of the 21st century.[2] Haruhi is considered to have tsundere character traits but is perceived by some as "too energetic" to be a true tsundere.[3] Erin Finnegan of PopCultureShock compared her outlook to that of Fox Mulder from the X-Files, as Haruhi, too, "wants to believe." Unlike Mulder, Finnegan describes Haruhi as an "immature, self-centered tsundere with violent mood swings."[4] One of the anonymous Tiger Mask donations was signed "Haruhi Suzumiya."[5]
IGN ranked her as #19 on their list of top 25 anime characters.[6] She is an important character in the spin-off series The Disappearance of Nagato Yuki-chan. She retains her character from The Disappearance of Haruhi Suzumiya in which she has no powers to alter reality, but and is a normal high school girl who attends Kouyouen Academy with Itsuki Koizumi. She retains her goal of finding aliens, time travelers and espers, as well as her energetic and eccentric character. She met Kyon at that time, four years ago with Kyon drawing the message for her in her school; she might have fallen in love with Kyon after she remembers and recognizes Kyon as John Smith in her earlier memories.
Yuki Nagato (長門 有希, Nagato Yuki)
Voiced by: Minori Chihara (Japanese); Michelle Ruff (English)
Yuki Nagato is a bibliophile humanoid interface that was created by the god-like figure called the Data Integration Thought Entity. Yuki's responsibilities involve monitoring Haruhi and the investigation of an unexplained "explosion of data" three years before the present story. She possesses an ability to manipulate her surrounding environment, or "data" as quoted by her. Yuki is very quiet but can speak at length when it has to do with her mission or a problem that has arisen. While she always seems to be engrossed in her reading, she comments that she is only relatively interested in them. Yuki gives hints and aid to Kyon throughout the series. She almost never shows any emotions, but there are times when she shows interest in things, such as programming computer games and playing them, as well as reading (in the light novel The Disappearance of Haruhi Suzumiya it is further revealed that she may have developed an interest in writing).
It is revealed in The Disappearance of Haruhi Suzumiya novel and film that she does develop emotions. In her context, developing emotions is like accumulating error data which will cause a bug to trigger anomalous behavior. The unpleasant emotions developed throughout the series (caused by the people around her) makes her wish for a normal world, whereby she finally takes action in The Disappearance of Haruhi Suzumiya. Yuki is well-acquainted with time travel and that Mikuru is a time traveler. Mikuru and Itsuki are aware that Yuki can do amazing things but know far less about it than Kyon does. She is also the main heroine of the spin-off series The Disappearance of Nagato Yuki-chan. She retains her character from The Disappearance of Haruhi Suzumiya in which she is not an alien — she is a shy girl who has a crush on her fellow literature club member, Kyon. She had an accident, a near-hit with a car that possessed her with a different personality having the quiet and stoic character in The Melancholy of Haruhi Suzumiya. With her inevitable disappearance drawing near, she confesses to Kyon before she disappears with the other Yuki taking her place.
Mikuru Asahina (朝比奈 みくる, Asahina Mikuru)
Voiced by: Yūko Gotō (Japanese); Stephanie Sheh (English)
Mikuru Asahina is a time traveler from the distant future who is assigned to investigate the reason behind the inability to travel to any point before three years before the present story. Mikuru is a soft-spoken girl who almost always willingly follows Haruhi's demands. She is the lowest in her Time Travelers' Committee. She often tries to explain what is going on but heavily censors it by saying "classified information." Haruhi loves dressing up Mikuru in (sometimes embarrassing) outfits, claiming that she is the "mascot" of the SOS Brigade. Kyon appears to have a bit of a crush on her (this is somewhat more apparent in the novels, as are Mikuru's feelings for Kyon). For her part, Haruhi seems quite jealous of her and Kyon's relationship. In the anime and novels Mikuru discourages Kyon from acting upon any feelings that he may have for her, explaining that he is Haruhi's "chosen person." In The Boredom of Haruhi Suzumiya light novel she implies that if he is nice to her, bad things will continue to befall her. She has told Kyon that Yuki and Itsuki are like herself, but when Kyon asks her if she knows what they are she answers "That's classified information." She is also a supporting character in the spin-off series The Disappearance of Nagato Yuki-chan in which she is not a time traveler but retains her character from The Disappearance of Haruhi Suzumiya.
Itsuki Koizumi (古泉 一樹, Koizumi Itsuki)
Voiced by: Daisuke Ono (Japanese); Johnny Yong Bosch (English)
Itsuki Koizumi is an esper who, like the other members of "The Agency," suddenly acquired three years before the present story the power to explore the "Closed Space" and combat Celestials that Haruhi Suzumiya creates when she is unhappy. He is fairly carefree and always smiling. Kyon seems to be annoyed by him and, in the light novels, expresses his urges to hit him. Itsuki brings up many points that have multiple sides, and. He explains to Kyon that Mikuru, or anyone, could be putting up a fake personality and deceiving everyone. In the first volume he states that Yuki is an alien and Mikuru is a time traveler, but then mentions the theory that he and they are what they are because Haruhi wants aliens, time travelers and espers to exist. He remarks that Kyon is the biggest mystery because as far as anyone in the Agency can work out, Kyon is totally normal, yet Haruhi is interested in him. Yuki and Mikuru are somewhat aware of what Itsuki's role and concept is. They have Itsuki convey messages to Kyon when Kyon and Haruhi vanish from this world into a closed space. He is also a supporting character in the spin-off series The Disappearance of Nagato Yuki-chan in which he is not an esper, but a normal high school boy who attends Kouyouen Academy with Haruhi Suzumiya. He retains the same character he had in The Disappearance of Haruhi Suzumiya where he is in love with Haruhi.
Yasumi Watahashi (渡橋 泰水, Watahashi Yasumi)
She briefly joins the brigade in the tenth novel, claiming to be a first-year student at North High. She is instead a literal deus ex machina, created by Haruhi to block Sasaki's interactions with Kyon. When the crisis is resolved, she disappears from existence with Haruhi believing she was a middle school student who sneaked into the brigade.


Ryoko Asakura.
Ryoko Asakura (朝倉 涼子, Asakura Ryōko)
Voiced by: Natsuko Kuwatani (Japanese); Bridget Hoffman (English)
At first, Ryoko appears to be a compassionate and hard-working high school girl. One of Kyon's friends, Taniguchi, places her in the top three first-year girls in the school with a grade of AA+: indicative of her pleasant personality, beauty, and athleticism. Her enormous popularity made her the unanimous choice for class president of Kyon's homeroom class. She showed particular concern about how Haruhi had distanced herself from the rest of the class.
It turns out that she is Yuki's backup and, as such, is another "humanoid interface." Much like Yuki, she finds it difficult to empathize with humans. Unlike Yuki, she possesses exceptional social skills. Initially she cheerfully supports Kyon's reaching out to Haruhi, often encouraging him to "open her up to the class," making Haruhi easier to observe. However, when Haruhi brings up the idea that someone disappearing would be interesting, it gives her the idea to try to kill Kyon (since Haruhi seems to care a lot about him) with a combat knife in the hopes of catalyzing an observable reaction from Haruhi. In battle, she mainly excels in controlling a select amount of data, making her own type of closed space, and hand-to-hand combat. Her efforts are stopped, after Yuki defeated and removed her from the physical world. Her cheerful personality doesn't falter, even at the moment of her own demise. This is a clue given by the author that Ryoko really did not understand the concept or the heavy implications of death, either her killing Kyon or her own death; that in the end, what she did was the result of simple logic that if Kyon were to have died, then Haruhi would give a reaction, not for the purpose of bloodlust. Ryoko is often called a yandere by fans. Afterwards, Yuki fabricates a cover story that Ryoko moved to Canada.
She makes a reappearance in the light novel The Disappearance of Haruhi Suzumiya, on an alternative timeline in which Haruhi never attends North High or forms an SOS Brigade. It is revealed that she cares deeply and is best friends with the alternate Yuki but would resort to violence to protect her. She stabs Kyon when he tries to inject an un-installation program into Yuki. She is stopped and destroyed by another Yuki that came from a few months later, along with Kyon and Mikuru, to save him. She appears again in book 10, The Astonishment of Haruhi Suzumiya, preview released in 2010, when Kyon encounters Kuyoh Suoh, another humanoid data interface created by the Macrospatial Quantum Existence, or "Canopy Dominion" at the train tracks to save him. Her main duty is to appear whenever there is an emergency when Yuki is not available. Their fight is interrupted by Emiri Kimidori, another humanoid data interface created by the Integrated Data Sentient Entity, while Asakura was thrusting her combat knife at warp speed. She notes that Kuyoh does not ask for any permission to alter data and escapes the closed space. She disappears once again, but a note is taken that Asakura will appear when necessary. She appears hostile, telling Kuyoh that Kyon is her "prey."
In the spin-off mini-series The Melancholy of Haruhi-chan Suzumiya, she appears as a chibi form dubbed 'Achakura' as a basketball-size result of a failed reincarnation and is forced to help Yuki around her house. She is subject to pranks from Yuki, such as being transported around in a baby carrier or dressed up like a Hinamatsuri doll. In Nyorōn Churuya-san, her appearance is similar to Tsuruya/Churuya and she has a crush on Kyon. She is one of the main characters in the spin-off manga, The Disappearance of Nagato Yuki-chan, retaining her character from The Disappearance of Haruhi Suzumiya.
Tsuruya (鶴屋)
Voiced by: Yuki Matsuoka (Japanese); Kari Wahlgren (English)
Tsuruya is the hyperactive friend of Mikuru (from the current time plane) notable for her loud voice, knee-length hair, and prominent tooth. She has a cheerful and friendly disposition. She is prone to long fits of unrestrained and intense laughter at things she considers even the slightest bit humorous.
Her fang-like tooth gives her an idiosyncratic speech pattern, causing her to misspeak by leaving out syllables. Her speech pattern is often accompanied with a lisp and her catch phrases "megas" and "nyoro". She was named "honorary consultant of the SOS Brigade" by Haruhi. She is the heir of the Tsuruya family, which purportedly collaborates with Itsuki's Agency. It is unknown if Tsuruya has a secret identity or agenda.
Though not a member of the SOS Brigade, she plays a minor role in The Adventures of Mikuru Asahina Episode 00 and serves on their baseball team in episode four. She has a small appearance in the ninth and twelfth episodes but otherwise appears relatively sparingly throughout the anime. She appears a few more times during the novels — more prominently than in the anime's rendition of the same stories and even getting along very well with Haruhi. Kyon believes this is because Haruhi and Tsuruya are nearly insane. Though she is not a brigade member, Tsuruya is used as an extra body for some of the brigade's activities.
In the light novels, it is implied that Tsuruya's wealthy and venerable family is a covert supporter of "the Agency" to which Itsuki Koizumi belongs. Tsuruya herself seems to possess some knowledge of the secrets of the SOS Brigade and other matters, although she never explicitly says so. Tsuruya temporarily takes care of Mikuru Asahina during an event when the latter has a double presence in the 'present' of the SOS Brigade and is the caretaker of a mysterious artifact discovered on her family's grounds, both at Kyon's request.
In the original light novel The Disappearance of Haruhi Suzumiya, and retaining the character for the spin-off manga The Disappearance of Nagato Yuki-chan, Tsuruya's role is that of Mikuru Asahina's best friend. She is shown to be extremely protective of her, even resorting to violence to keep her safe, but still maintains her cheerful disposition. She is the star of the official gag manga, Nyorōn Churuya-san, featuring a super deformed Tsuruya with a smoked cheese obsession, which later became an anime mini-series. She makes appearances in The Melancholy of Haruhi-chan Suzumiya where she apparently has a rivalry with Sonou Mori.
Taniguchi with Kunikida.
Taniguchi (谷口)
Voiced by: Minoru Shiraishi (Japanese); Sam Riegel (English)
Taniguchi is a classmate and friend of Kyon. Taniguchi went to the same junior high school as Haruhi while Kunikida went to the same junior high school as Kyon. Like Tsuruya and Kyon's sister they act as fill-in members for the SOS Brigade when needed. Both of them played very small parts in The Adventures of Mikuru Asahina Episode 00, with neither having many lines to say. They are friends and are almost always seen together.
Taniguchi is comically lecherous; he gave a 'score' of attractiveness to each first-year girl based upon his tastes and preferences. He remembers the full names of everyone receiving an 'A' rank, with Ryoko receiving an A++ and Nagato receiving an A-. As for Mikuru, her mere presence elicits an altered state of adoration for Taniguchi and Kunikida, especially when she was in her soba-serving costume. He knew Haruhi from back in junior high and was Kyon's original source of information on Haruhi before he started conversing with her. Kyon's opinion is that Taniguchi may have been the person who dated Haruhi for the shortest time, five minutes, while she was in junior high. Kyon does not seem fond of Taniguchi. He seems to show annoyance with Taniguchi whenever he speaks his mind. In the novels, he says he only hangs out with Taniguchi so as not to look like an outcast.
In The Melancholy of Haruhi-chan Suzumiya he usually gets the short end of the stick in the episodes that he appears in. This includes being on a scavenger hunt for so long that the game was over when he came back and becoming an "oni" when in fact all that Haruhi assigned for him was to sit still in "icy isolation".
Kunikida (国木田)
Voiced by: Megumi Matsumoto (Japanese); Brianne Siddall (English)
Kunikida is a friend and classmate of Kyon. Kunikida is much quieter than Taniguchi with the latter doing most of the talking when the two are around. Kunikida plays a minor role and does not contribute much dialogue. Since he and Kyon went to the same junior high school, he might know more about Kyon since he stated that "Kyon likes weird girls," as evidence to support the idea that Kyon is romantically interested in Haruhi. His character is shown to be smarter than his friends Taniguchi and Kyon, at one time explaining a difficult concept to Taniguchi. Kunikida is included in certain SOS Brigade activities when there is a shortage of people, such as the baseball game and the movie The Adventures of Mikuru Asahina.
The Computer Research Society President (コンピュータ研究会部長, Konpyūta Kenkyūkai Buchō)
Voiced by: Nobuyuki Kobushi (Japanese); Dave Wittenberg (English)
He is the president of the Computer Research Society (or Computer Society), which shares a room adjacent to the SOS Brigade. The President is never given a name other than "Computer Society President" or variations upon that term (all that is known of his name is the first syllable: "ya"). He and his club have had the misfortune of being targeted by Haruhi's blackmail, being forced to give away their best computer and wire the Brigade's clubroom for an internet connection. He hasn't yet forgiven this and checks the SOS Brigade website to see if they are putting the computer to use (which they haven't), making him the primary cause of their hit counter's steady rise.
He has a passion for computers and has, with the other four members of the Computer Society, developed their own basic science-fiction strategy game The Day of Sagittarius III (there is no Day of Sagittarius I or II, they just thought the III would sound cool). He later challenges the SOS Brigade to a rigged contest using their game, betting four of his club's laptops in an attempt to reclaim the originally pilfered computer. Despite the Research Society's cheating, Yuki counters by reprogramming the code in-match, and the SOS Brigade wins. Despite the loss of four additional laptops, the President was overjoyed at having discovered a genius computer hacker that would participate in his club's activities. In the light novels, it is hinted he is one of Nagato's secret admirers.
In the episode/chapter "Mystérique Sign", he is trapped in an alternate spatial frame that was unknowingly triggered by Haruhi. He was, in turn, freed by the other members of the SOS Brigade.
Emiri Kimidori (喜緑 江美里, Kimidori Emiri)
Voiced by: Yuri Shiratori (Japanese); Hynden Walch (English)
A soft-spoken, well-groomed second-year student with long, light green hair, Emiri first appears in "Mystérique Sign" seeking counsel from the SOS Brigade. Although she claims to be the girlfriend of the Computer Research Society President, Kyon later discovers that this is not the case, which leads him to suspect that Emiri is a Humanoid Interface like Yuki and Ryoko. Emiri later reappears as the secretary to the president of the Student Council. By this time, it is implied that she is Yuki's superior, or at the very least her minder, as a consequence of Yuki's world-altering actions. Emiri is later shown to work part-time (and against the rules of the School Council) as a waitress in the cafe frequented by the SOS Brigade.
Student Council Chairman (生徒会長, Seitokaichō)
A student chosen by Itsuki's "method" and hired by the Agency to play the part of the archetypal nemesis to Haruhi, as yet another attempt to relieve her stress. He attacks the Brigade, usually on the grounds that it is not a legitimate club, using the school rules. When acting as Haruhi's nemesis, he wears glasses and acts cold and polite. When Haruhi is not present, he drops this façade, removes his glasses, and sometimes smokes cigarettes. He has noted that he is growing accustomed to his role and that he enjoys wielding power. His name remains unknown.


ENOZ is an all-girl student band featured in episode 12 of the anime series. The name ENOZ derives from the last names of the members: Enomoto, Nakanishi, Okajima, and Zaizen. Only two "actual" members are seen performing in the anime. During the high school festival Enomoto (lead singer and guitarist) has tonsillitis and Nakanishi (guitar) suffers a sprained wrist, so Haruhi and Yuki rescue the band and fill in for the missing members during the performance. The band is unique to the anime adaptation. In the original light novel, the name ENOZ is not mentioned nor do the members' names appear; the band consists of only three members.

The impromptu band only performs two songs, "God Knows" and "Lost My Music", which were trimmed down as inserts. The first has most of the song save for about half of the guitar solos during the beginning and end and the entire second stanza and chorus removed. The latter song barely finishes the first stanza and chorus, leaving the second and third out.

"God knows" and "Lost My Music" were included in the soundtrack EP Suzumiya Haruhi no Tsumeawase (涼宮ハルヒの詰合 ~TVアニメ「涼宮ハルヒの憂鬱」劇中歌集シングル~). The sole vocals for ENOZ are sung inby Japanese pop singer and voice actress Aya Hirano, who voices the main character of the series, Haruhi Suzumiya. In addition, Hirano sings the main opening and ending themes for the series. (See a listing of Haruhi Suzumiya albums.) Susumu Nishikawa (西川 進) plays the guitar, Takeshi Taneda (種子田 健) the bass, and Yutaka Odawara (小田原 豊) the drums. In the English version, the songs are performed by Wendee Lee, Haruhi's voice actress.

ENOZ itself is a homage to the real life all-girl J-pop band Zone. Its name is simply "Zone" spelled backwards.[7]

Among the members of ENOZ are:

Miyuki Enomoto (榎本 美夕紀, Enomoto Miyuki)
Voiced by: Mai Kadowaki (Japanese); Michelle Ruff (English)
Is the lead singer and guitarist in the band (the Italia Mondial II Woody Deluxe Woodtop used by Haruhi is hers).
Takako Nakanishi (中西 貴子, Nakanishi Takako)
Voiced by: Ryoko Nagata (Japanese); Megan Hollingshead (English)
Plays guitar in the band (the White Limited Edition 1966 Gibson SG used by Yuki is hers).
Mizuki Okajima (岡島 瑞樹, Okajima Mizuki)
Voiced by: Mina Hiroe (Japanese); Patricia Ja Lee (English)
Plays drums in the band, shown to be a Pearl Drum set in the anime.
Mai Zaizen (財前 舞, Zaizen Mai)
Voiced by: Sara Nakayama (Japanese); Kari Wahlgren (English)
Plays bass in the band (is shown using a green Fender Precision Bass).


The Agency is an organization of espers who believe that Haruhi had converted them into espers in the year 0. Among the members of the Agency are:

Keiichi Tamaru (多丸 圭一, Tamaru Keiichi)
Voiced by: Kazuhiko Inoue (Japanese); Dave Wittenberg (English)
Supposedly a distant relative of Itsuki Koizumi's. He is actually a member of the Agency. His normal appearance is of a wealthy middle-age man who has a private villa on a small isolated isle. He played a part in the murder mysteries, as well as the other three agency members, that were meant to alleviate Haruhi's boredom.
Yutaka Tamaru (多丸 裕, Tamaru Yutaka)
Voiced by: Toshiyuki Morikawa (Japanese); Vic Mignogna (English)
Keiichi Tamaru's purported younger brother. Koizumi suggested that Keiichi and Yutaka merely pretend to be brothers. A member of the Agency.
Sonou Mori (森 園生, Mori Sonou)
Voiced by: Akane Omae (Japanese); Hynden Walch (English)
A member of the Agency. She leads negotiations with Mikuru Asahina's captors in the seventh novel, suggesting that she has a higher ranking position in the Agency. She appeared as a maid in the murder mysteries. In The Melancholy of Haruhi-chan Suzumiya, Mori has an estranged relationship with Tsuruya as she constantly receives an uneasy feeling when Mori is around. They engage in a battle scene when attending a mall exhibition. The reason for their hatred is unknown. However, it seems they can put aside their differences for a while as shown in the light novels, when they laugh when they couldn't resist punching the fruit instead of picking it. Mori appears regularly in The Melancholy of Haruhi-chan Suzumiya parody manga, often as a pawn or victim of Koizumi's or Suzumiya's games and plots, sometimes forced to act or dress in a manner offending her sensibilities.
Arakawa (新川)
Voiced by: Akio Ōtsuka (Japanese); Michael Forest (English)
A member of the Agency. His first name remains unknown. He appeared as a multi-talented butler in the murder mysteries. He also plays the part of Itsuki's taxi driver on numerous occasions.

Sasaki's group[edit]

Fujiwara (藤原, Fujiwara)
His real name is, as of volume 11, unknown. In volume nine, he identifies himself as Fujiwara, although he makes no attempt to hide the fact that this is an assumed name. He mocks the concept of identification through names, considering it completely pointless. Due to his mannerisms and obvious malevolent intent, "Sneering Bastard" was the pseudonym given to him by Kyon. He has an apparent hatred of following scripts (when it comes to time travel scenarios), especially if he knows the ending. He dislikes Mikuru Asahina and, at the end of volume seven, Kyon (though this might be interpreted as a dislike for people who interfere in his plans).
He is a time traveler from (presumably) the same future as Mikuru; however, his group "does not wish for the existence of time travelers, or for the possibility of time travel." He is almost the same height as Kyon and may be close to his age. He has a tendency — as observed by Kyon — to continuously smirk and otherwise show ugly facial expressions. In book nine, The Dissociation of Suzumiya Haruhi, Kyon considers that his constant ugly smirks remind Kyon of an evil version of Itsuki Koizumi.
First encountered in volume seven, he has a tense conversation with Kyon and Mikuru, holding an important item. Despite his obvious anger at Mikuru, he returns the item to them, explaining briefly that it was a pre-determined event and that the object in question was "an important artifact for the future." He states that he has met Mikuru several times; however, she has no memory of seeing him. It is possible that she may have met him officially for the first time in some other event yet to be seen (in the novels) or the Adult Mikuru could have met him; as yet, there is no confirmation of this. He is later seen in volume seven where he again states that the event was pre-determined and that he "merely allowed history to follow its course." He steps inside a van and disappears by the time someone opened the door again. This probably means that he has access to similar technology that Mikuru has for traveling in time. He, in tandem with a humanoid interface from the 'Canopy Dominion' and a woman involved with an agency rival to Koizumi's, is involved in a matter concerning Kyon's middle school friend, Sasaki.
Kuyō Suō (周防 九曜, Suō Kuyō)
A humanoid interface created by the 'Canopy Dominion' rather than the Data Overmind that spawned Yuki Nagato and her kin. Kuyō appears as a pretty girl with extremely long hair who remains mainly unnoticed by human beings around her, most likely due to a form of data manipulation. She appears to be extremely uncommunicative, speaking rarely if ever at all. Her purpose on Earth remains unclear, although it is apparent that her patrons have an interest in the events unfolding around and the people surrounding Haruhi and Kyon. Usually, there is considerable tension and latent hostility whenever she meets humanoid interfaces from Yuki's side. As an interface, Kyon considers her to be much cruder than Nagato; she has difficulty with communicating and, when she does, her words often seem nonsensical, her sense of individuality very weak. During her one 'conversation' with Kyon, she told him he had pretty eyes. In the preview of book 10, The Astonishment of Haruhi Suzumiya, it is clarified that she bugged Nagato Yuki, causing her to fall ill.
When she engages into a fight with Asakura Ryoko and Kimidori Emiri, they note that she does not require any requests or permission to alter data, as there was no data leaving or entering the space. The assumption for this is the Canopy Dominion does not have a consciousness, leaving a mystery behind why they have an interface on Earth, perhaps for curiosity, developing how much information they hold, or if Sasaki had produced some sort of event attracting their attention, dodging the eye of the Integrated Data Sentient Entity. She had been able to become 2D, float, and hack into the time-space program and escape. The method is taken as primitive, creating a sound like two tuning forks clanging against each other. She could dodge knives being thrown at warp speed, and her communications skills were highly developed during the battle. It is assumed her vocabulary had been upgraded from hearing the conversations between Ryoko and Emiri. She asked for definitions, such as the definitions "humanoid data interface," "Integrated Data Sentient Entity," and "Canopy Dominion." Her character development appears uneven, but this may be because her experience of time is non-linear.
Kyōko Tachibana (橘 京子, Tachibana Kyōko)
A member of an organization of espers, similar to Itsuki Koizumi's. Both groups realized their powers at the same time, but where Koizumi's group recognized Haruhi as the source of their abilities, Kyōko's group was certain that Kyon's school friend Sasaki was the source of theirs. It is possible that the powers wielded by the organizations are different. Kyōko's group now believes that the powers wielded by Haruhi rightfully belong to Sasaki and that they should be transferred back to her somehow. To this end they have tried to enlist the aid of Kyon, Kuyō's patrons, and the time traveling faction represented by the 'Sneering Bastard'. There is ample indication that Kyōko's group and the Agency now exist in a state of conflict, especially since the former participated in an attempt to kidnap Mikuru.
Kyōko has shown Kyon that she can enter an Enclosed Space she claims was created by Sasaki — a peaceful, well-lit realm as opposed to the gloomy, perilous realms spawned by Haruhi, which has no destructive giants tearing everything down. She also claims that transferring the power from Haruhi to Sasaki would be in the world's best interest and has implied that Kyon would be the only key needed to effect the transfer. As a person, Kyōko seems cheerful, friendly and pleasant, although she is frustrated by the unwillingness of others to assist in the transfer of power. Kyōko's claim that the Enclosed Space supposedly generated by Sasaki are preferable to those created by Haruhi is suspect; while there is no destruction taking place in these realms, they are devoid of any other kind of change.
Kyōko (left), Kuyō (middle), and Sasaki (right).
Sasaki (佐々木)
A friend of Kyon's from middle school. She first appears in volume nine. She introduces herself as a "close friend" of Kyon's, evoking feelings of jealousy in Haruhi. Many of Kyon's middle school friends, including Kunikida and Nakagawa, had developed the mistaken impression that Kyon and Sasaki were boyfriend and girlfriend, when they had simply become good friends due to attending the same cram and middle schools. It was this perceived relationship which led to Kyon getting the reputation of being interested in 'weird girls.' Sasaki is prone to odd philosophical musings and behavior which some might perceive as being atypical. For instance, she used the male 'boku' for 'I' when speaking with boys. Sasaki becomes a source of interest because her presence causes Haruhi to manifest Closed Space, and she has attracted the attention of a rival Agency similar to Koizumi's, who believe that Sasaki is capable of creating a distinctly different form of Closed Space.
While Sasaki is, like Haruhi, pretty, intelligent, and eccentric, there are considerable differences between them. Sasaki displays none of Haruhi's boundless and sometimes random energy and seems to be somewhat dismissive of all emotion, considering it an inhibition to human development. Sasaki and Haruhi claim that emotions of love are like a mental illness. Haruhi, however, has admitted to sometimes feeling a desire to engage in a romantic relationship and is known to have dated a lot. Sasaki apparently has no desire to do so. However, she said that she was unable to keep from smiling around Kyon and there was a personal matter between them that she could not bring herself to talk with him about. Like Haruhi, Sasaki has been in contact with an alien, a time traveler, and an esper. Unlike Haruhi, Sasaki is somewhat aware of the backgrounds of her companions, although she feels that she does not understand the specifics as well as Kyon does.
Sky Canopy Dominion/Macrospatial Quantum Cosmic Existence (天蓋領域, Tengai Ryōiki)
An alien race, most likely data-based like the Data Overmind, that was behind the events of "Snowy Mountain Syndrome" chapter of volume 5, The Rampage of Haruhi Suzumiya. This second alien race is so different from the Data Entity that the two have been completely incapable of communicating with each other, although they have been aware of each other for eons. Most telling is that Yuki Nagato considers the appearance of a Canopy Dominion-created interface capable of linguistic communication was great progress, despite the fact that she is openly hostile toward said interface, Kuyō Suō. Even though it was now possible to attach a name to the Canopy Dominion, it was without equal in the history of the two alien species' existence. There is considerable evidence of antagonism between the two, who seem to be roughly equal in power.
Kyon holds considerable mistrust and hostility toward the Canopy Dominion; its first interaction with the SOS Brigade was a difficult trial which nearly took the life of Yuki Nagato, a matter which Kyon has taken personally. Considering the lack of communicative ability in the Canopy Dominion's first known interface, it is questionable whether the Canopy Dominion was capable of communicating with the SOS Brigade in a different manner. Considering the agencies hovering around Haruhi Suzumiya, one might speculate the Canopy Dominion considered it unlikely that a less grandiose way of interacting with her would have been possible at the time of "Snowy Mountain Syndrome."

Other characters[edit]

Kyon's Sister.
Kyon's Sister (キョンの妹, Kyon no Imōto)
Voiced by: Sayaka Aoki (Japanese); Kari Wahlgren (English)
Not much is revealed about Kyon's fifth-grade sister; not even her real name is given. Other characters simply refer to the ten-year-old as 'Kyon's (Younger) Sister' or Little Sis (妹ちゃん, Imōto-chan). She has relatively few speaking lines in the anime, though she appears in The Adventures of Mikuru Asahina: Episode 00, episode six, and fourteen, fulfilling the duties of an irrepressible younger sister. She has an even smaller role in the original novels than in the anime. Usually, her presence is made apparent when Kyon is at home.
She is carefree, happy and playful and is the force behind the use of the nickname "Kyon"; after she heard their aunt call her older brother such, she started using the nickname as well in front of his school friends. From there, the name spread and stuck. She seems to get along well with all of the SOS Brigade, especially with Mikuru and Tsuruya, sharing a sister-like relationship with them. In the manga Kyon sees a similarity between his sister and Haruhi, especially when they are playing detectives.
Okabe (岡部)
Voiced by: Eiji Yanagisawa (Japanese); Michael McConnohie (English)
The homeroom teacher of Kyon and Haruhi's class. He is in charge of the handball club at the school. First name remains unknown.
Miyoko "Miyokichi" Yoshimura (吉村 美代子(ミヨキチ), Yoshimura Miyoko)
A girl whom Kyon wrote about when forced to come up with a romantic story for a Literary club assignment. Although Kyon appeared to have had a romantic date with her, the truth was she was a classmate and friend of his sister. She had asked Kyon to accompany her to see a horror movie that required a guardian over the age of twelve.
Nakagawa (中河)
A friend of Kyon's from middle school. He believed he fell in love with Nagato at first sight. So extreme was this effect that he dedicated himself fully to his studies in the hopes of someday becoming a worthy suitor to Nagato, whom he regarded as a "goddess." In reality, he only saw the Data Overmind, with Nagato as an interface, and was overwhelmed by the wealth of knowledge it possessed. His ability to see the Entity is later removed by Nagato. Kyon suspects that he might have been an esper like Koizumi.
Yoshimi Sakanaka (阪中 佳実, Sakanaka Yoshimi)
Voiced by: Mai Aizawa
The SOS Brigade's second client, who believed that the strange behavior exhibited by her dog Rousseau was the result of spiritual activity. After receiving a flier from Haruhi's ill-fated plan to advertise while wearing bunny girl costumes during the beginning of the school year, Sakanaka followed the flier's advice and presented the brigade with her problem. Her problems were complicated when the SOS Brigade failed to find anything and her dog mysteriously became ill. Nagato was able to identify elementary silicon-based data lifeforms as the cause of the illness. With the help of Kyon and Koizumi, Nagato transferred the lifeforms to Shamisen to preserve the data lifeforms without causing the dogs to suffer. Sakanaka, with several other witnesses of Nagato's efforts, believes that her dog was cured using an obscure folk remedy Nagato had once read about.

Shamisen (シャミセン)
Voiced by: Kenichi Ogata (Japanese); Steve Kramer (English) (Season 1), Michael McConnohie (Season 2)
A stray calico cat selected by Haruhi to play the role of Yuki's familiar for their film The Adventures of Mikuru Asahina, Shamisen is unusual in the sense that he is a male calico cat. During filming, Haruhi's reality-altering powers temporarily give Shamisen the ability to speak. He is adopted by Kyon after the completion of the movie and is given the nickname "Shami" by his sister. (The word shamisen refers to a three-stringed Japanese musical instrument with a rectangular body traditionally covered with skin from a cat or a dog.)
Shamisen #2 (シャミセン2号, Shamisen Ni-gō)
A cat who's nicknamed Shami Two (Shami-nii), although she is female. Itsuki Koizumi found her for a special SOS Brigade-related detective game, where Shami-nii served as a decoy and stand-in for the real Shamisen. After the game, she apparently becomes Koizumi's pet.
Kimidori (キミドリ)
Voiced by: Minoru Shiraishi (Japanese); Sam Riegel (English)
Introduced in the spin-off The Melancholy of Haruhi-chan Suzumiya, Kimidori is a "dog" that was made by Yuki using balloons Kyon had given her, which she then used her unique abilities on to create into a walking, talking creature, although the creation process was horrifying. Whilst it initially appears as a cute, friendly creature, Kimidori turns out to be another way of pulling pranks on Achakura when she's at home. He speaks in a rather distinguished voice and even requests to be called 'Kimidori-san'. His name comes from the color of the yellow-green balloon from which he is formed, as well as a reference to the main series' Emiri Kimidori.


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