Chaos;Head - Plot - Characters - Main Characters

Main Characters

Takumi Nishijō (西條 拓巳, Nishijō Takumi?)

Voiced by: Hiroyuki Yoshino (Japanese), Todd Haberkorn (English)

Takumi is the main character of the series. He is withdrawn and is not interested in 3D things. He suffers from intense delusions as a result of his apparent schizophrenia and the extremely secluded lifestyle he lives as a hikkikomori. He only attends school in order to fulfill the minimum for graduation requirements. He avoids conversations with others whenever possible. He prefers to engage in watching anime, playing eroge, and massively multiplayer online role-playing games. He is a second-year student at Suimei Academy (翠明学園, Suimei Gakuen?). He is hinted to appear in Steins;Gate's sequel, Steins;Gate: Henikuukan no Octet, as the main character, Rintarō Okabe, receives a D-Mail telling him to reclaim an IBN 5100 from a person under the alias of "Neidhardt", Takumi's name in his favorite MMORPG. The D-Mail also states that "Neidhardt" lives in Shibuya and has "inherent, supernatural abilities", a reference to his power as a gigalomaniac.

Rimi Sakihata (咲畑 梨深, Sakihata Rimi?)

Voiced by: Eri Kitamura (Japanese), Carrie Savage (English)

Rimi is a mysterious pink-haired girl that Takumi encounters at the crime scene on his way home. Rimi was wearing Suimei Academy's uniform at the time and appeared to recognize Takumi. She later claims to have known Takumi for a long time, something that only Takumi seems to be unable to remember, yet she claims to have no idea what he is talking about in regards to the murder.

Nanami Nishijō (西條 七海, Nishijō Nanami?)

Voiced by: Ui Miyazaki (Japanese), Brittney Karbowski (English)

Nanami is Takumi's younger sister and is a first-year Suimei Academy student. She often puts up a strong front and seems to argue with her brother whenever they meet but she is actually really concerned about him.

Ayase Kishimoto (岸本 あやせ, Kishimoto Ayase?)

Voiced by: Yui Sakakibara (Japanese), Stephanie Sheh (English)

Ayase is a second-year Suimei Academy student by day and vocalist by night. She sings for a popular indie rock band named "Phantasm" (ファンタズム, Fantazumu?). Her stage name is "FES". The lyrics in her songs appears to describe the events of the recent murders, leading the police to see her as a potential suspect. She is also the most spiritual and eccentric of the main characters. She (besides Takumi) is another connection to Steins;Gate: Yui Sakakibara (singer of Steins;Gate ending) credited as FES.

Yua Kusunoki (楠 優愛, Kusunoki Yua?)

Voiced by: Chiaki Takahashi (Japanese), Colleen Clinkenbeard (English)

Yua is a third-year student at Suimei Academy who seems to be stalking Takumi but later seemingly befriends him. She seems to be quite into anime and manga. However, this is all later shown to be an act where she is investigating him as she suspects Takumi of being the criminal behind the recent murders.

Sena Aoi (蒼井 セナ, Aoi Sena?)

Voiced by: Hitomi Nabatame (Japanese), Clarine Harp (English)

Sena is a third-year student at Suimei Academy. Takumi first encounters her in a hallway at school but quickly excuses himself after facing her ominous glare. She is often seen standing around Shibuya holding a very long sword and eating a light blue ice pop.

Kozue Orihara (折原 梢, Orihara Kozue?)

Voiced by: Ayumi Tsuji (Japanese), Kara Edwards (English)

Kozue is a second-year student that transfers into Suimei Academy early on in the story. She is not shown to be speaking but appears to have telepathic abilities. She calls herself Kozupii.