A Certain Magical Index/Characters/A Certain Scientific Railgun Supporting Cast

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Here we present principle supporting cast of the A Certain Scientific Railgun spinoff of the A Certain Magical Index franchise.

Even though they do very occasionally make a blink-and-you'll-miss-it cameo appearance in the Index franchise proper, their have more prominence and importance to the Railgun story as a rule, and hence are introduced here.

Harumi Kiyama

Voiced by Atsuko Tanaka

Harumi Kiyama is a character in the A Certain Scientific Railgun manga and anime. She is the primary antagonist of the first storyline and becomes a supporting character in the second storyline of the anime adaptation. She is the creator of the Level Upper, a sound in which when used allowed the user's abilities to become stronger.

Mii Konori

Voiced by Kana Ueda

A high school student and Chief of the 177th Branch of Judgment, where Uiharu and Kuroko work. As their sempai before becoming chief, she tries to make sure both girls do their work at Judgment seriously and at the same time want them to be safe. She is a Level 3 Esper with a power called Clairvoyance which, despite what the name implies, is actually X-Ray Vision.

  • Ascended Extra: Originally a nameless member of Judgment in the manga, her role was significantly expanded in the Railgun anime.
  • Authority Equals Asskicking: Averted in that, although she has a lower Power Level (Level 3) than Kuroko (who’s a Level 4) she actually outranks the Lovable Psycho Lesbian in terms of bureaucratic authority.
    • And as shown in the omake of Railgun's Manga Volume 5, in terms of raw skill she is more than a match for Kuroko as a Martial Artist.
  • Badass Adorable
  • Badass Biker: It comes in awful handy when your younger friends need to get to a battle “fast.”
  • Boobs of Steel: The strongest physical fighter in her branch, and also the most well-endowed.
  • Bring My Red Jacket: Played with. She owns a red biker's jacket that she wears when events turn serious, but she's never shown to be injured.
  • Cool Big Sis: To the younger girls in the Railgun cast.
  • Dark and Troubled Past: Not that troubled, but she was once a member of a gang of delinquents.
  • Former Teen Rebel: Which is a diametric opposite of the side of the law she’s on right now.
  • Desperately Looking for a Purpose In Life: What led to her joining Big Spider, and subsequently Judgment.
  • Gainaxing: During the Beach Episode, because she couldn't find a swimsuit that fit her.
  • Heart Is an Awesome Power: X-ray vision may not seem to be that impressive on its own, but when that means never being surprised by concealed weapons, coupled with her bone-breaking martial-arts skills, it makes her more than a formidable match in battle.
  • Hello, Nurse!: The scene where she appears in her delicious swimsuit.
  • Improbable Age: She's the chief of the 177th branch of Judgment, which is justified since all members of Judgment are young Esper students.
  • Meganekko
  • Ms. Fanservice
  • Nice Girl
  • Reasonable Authority Figure: More of a "Good Cop" than Kuroko in Judgment.
  • Specs of Awesome
  • Stupid Sexy Flanders: So devastatingly sexy in her swimsuit that she's able to provoke this reaction from the straight girls of the cast. And the Misakasexual. And a female snake.
  • Team Mom: When a voice of calm and mature reason is needed amongst the girls.
  • Together Umbrella: She drew one which had her name and that of her sempai at one of her old hangouts when she was a delinquent, but said sempai scratched it out, believing that kind of relationship wouldn't work out for them and because he wanted her to have a better life.
  • X-Ray Vision
  • Younger Than They Look: She's a high school student? With that body?

Mitsuko Kongo

See the Tokiwadai page.


Tokiwadai Dormitory Supervisor

See the Tokiwadai page.


Wataru Kurozuma

Voiced by Katsuyuki Konishi

Kurozuma Wataru is character introduced in the A Certain Scientific Railgun anime. He is a Skill-Out member and is the founder and former leader of one of the largest Skill-Out factions, Big Spider.

  • Badass Normal
  • Berserk Button: "You're hitting girls? That is not cool."
    • He'll also kick your ass if you make him drop his milk.
  • Big Brother Mentor: To Mii Konori, who he sees as a surrogate little-sister. For Mii's part, she wishes it were something more...
  • Casting Gag: He has a few parallels with Kamina, Katsuyuki's most famous role: both are eccentric Badass Normal Delinquents with signature tattoos and virtually the same "voice" out of Katsuyuki's many.
  • Chivalrous Pervert: The rare anime male that can sincerely make comments about a girl's figure without causing offense.
  • Face of a Thug: Averted; in spite of being the singular most Badass Level Zero in Academy City, he has easily the kindest and gentlest appearance of all the males in the franchise, Touma included.
  • First Love: For Mii Konori.
  • Nice Guy
  • One-Man Army: Stands out in Academy City for being a real Level 0 (unlike Touma) who is able to neutralize dozens of armed combatants, including those with firearms, with his Martial Arts abilities alone. It's quite likely that it's through his tutelage that Mii is such a formidable Martial Artist herself.
  • Put on a Bus: Literally, to jail. Do note though that he and Mii parted on very good terms.
  • Tattooed Crook: Subverted; his tattoo, which is badge of his loyalty to Big-Spider, does not stop him from being a kind gentleman and absolute sweetheart.
  • We Hardly Knew Ye
  • Wife-Basher Basher: Plays it straighter than Touma.


Therestina Lifeline

Therestina Kihara Lifeline

Voiced by Sayaka Ohara

The head of Multi Active Rescue unit or "MAR", a search and rescue unit, and an anime-exclusive character from A Certain Scientific Railgun.

She's also the main antagonist of the second arc of the A Certain Scientific Railgun anime. She is the granddaughter of famous scientist Gensei Kihara and is related to Hound Dog's commander Amata Kihara. Like her grandfather, she is obsessed in achieving the creation of a Level 6 Esper.

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