Billion x School

Director

• 
  Ruto Toichiro

Screenwriter

• 
  Gajin Shouta

Main Role

• 
  Yamada Ryosuke

  Kagami Rei

  Main Role
• 
  Kinami Haruka

  Serizawa Ichika

  Main Role

Support Role

• 
  Mizusawa Rintaro

  Nishitani Sho

  Support Role
• 
  Matsuda Genta

  Konno Naoto

  Support Role
• 
  Ohara Azusa

  Todo Yukimi

  Support Role
• 
  Yamashita Coki

  Takenaka Tenju

  Support Role
• 
  Okuno So

  Joshima Yu

  Support Role
• 
  Kashiwagi Haru

  Suzuki Tsukasa

  Support Role
• 
  Kosaka Juri

  Umeno Himeka / "Hime"

  Support Role
• 
  Kurasawa Anna

  Matsushita Rina

  Support Role
• 
  Komiyama Rina

  Osugi Minami

  Support Role
• 
  Adachi Yumi

  "Teach"

  Support Role
• 
  Mizuno Miki

  Todo Makiko

  Support Role
• 
  Nagano Munenori

  Dobashi Junpei

  Support Role
• 
  Sakaguchi Ryotaro

  Mizoguchi Nobuo

  Support Role
• 
  Shida Mirai

  Mitsui Hikaru

  Support Role
• 
  MEGUMI

  Sakai Miyako

  Support Role
• 
  Kamiki Ryunosuke

  Uchimaki Shizuku

  Support Role
• 
  Ichimura Masachika

  Kagami Osamu

  Support Role
• 
  Sunada Masahiro

  Kusakabe Ryuta

  Support Role
• 
  Omasa Rin

  Nagumo Yusaku | [Face of class 0] (Ep. 8)

  Support Role
• 
  Kawaguchi Aoi

  Emoto Maki

  Support Role
• 
  Ohkuma Kanami

  Harada Nonon

  Support Role
• 
  Matsuzaki Miyu

  Makime Hotaru

  Support Role
• 
  Tadenuma Yui

  Kawabata Miki

  Support Role
• 
  Matsunaga Arisa

  Fujimoto Kisaki

  Support Role
• 
  Koizumi Kosaku

  Tamaru Hajime

  Support Role
• 
  Hirano Ruri

  Saito Honoka

  Support Role
• 
  Hayase Ai

  Okamoto Ikoi

  Support Role
• 
  Imai Ryutaro

  Hashimoto Komichi

  Support Role
• 
  Kanekiyo Momoca

  Banba Kaede

  Support Role
• 
  Matsudai Koya

  Harumi Masashi

  Support Role
• 
  Miura Rina

  Aiba Nene

  Support Role
• 
  Sato Shunsuke

  Kotobuki Jin

  Support Role
• 
  Takagi Haru

  Kagami Rei [Child]

  Support Role
• 
  Watanabe Kumika

  Serizawa Ichika [Child]

  Support Role
• 
  Hoshino Mari

  [Rei's mother]

  Support Role

Guest Role

• 
  Yuui Ryoko

  Nishitani Emi (Ep. 1)

  Guest Role
• 
  Oshinari Shugo

  Hiyama (Ep. 1)

  Guest Role
• 
  Hisamatsu Ryuichi

  [Showcase audience] (Ep. 1)

  Guest Role
• 
  Babazono Azusa

  [Landlord] (Ep. 1)

  Guest Role
• 
  Arai Keishi

  [Student] (Ep. 1)

  Guest Role
• 
  Hongo Yuzuha

  [Student] (Ep. 1)

  Guest Role
• 
  Shimomura Misora

  [Student] (Ep. 1)

  Guest Role
• 
  Tonai Sakura

  [Student] (Ep. 1)

  Guest Role
• 
  Murakoshi Ryota

  [SIT member] (Ep. 1)

  Guest Role
• 
  Kaga Sho

  [Audience] (Ep. 1, 11)

  Guest Role
• 
  Kaya Souya

  [Audience] (Ep. 1, 11)

  Guest Role
• 
  Wada Misa

  Umeno Sachiko (Ep. 2)

  Guest Role
• 
  Shimoda Ayaka

  [Himeka's bully] (Ep. 2, 4)

  Guest Role
• 
  Nishiyama Mayuko

  Takenaka Naomi (Ep. 4)

  Guest Role
• 
  Niiro Shinya

  Question Motegi (Ep. 4)

  Guest Role
• 
  Hida Yasuhito

  ["Yuuki Seminar" headmaster] (Ep. 4)

  Guest Role
• 
  Hyuga Jyo

  [Neurologist] (Ep. 4)

  Guest Role
• 
  Seki Koji

  ["Kagami Group" head of research] (Ep. 4)

  Guest Role
• 
  Moriyama Akiho

  ["Kagami Group" researcher] (Ep. 4)

  Guest Role
• 
  Uemura Yu

  ["Kagami Group" researcher] (Ep. 4)

  Guest Role
• 
  Tsuboi Fu

  ["Kagami Group" researcher] (Ep. 4)

  Guest Role
• 
  Taniguchi Kazukuni

  ["Kagami Group" researcher] (Ep. 4)

  Guest Role
• 
  Kataoka Reiko

  Matsushita Hitomi (Ep. 5)

  Guest Role
• 
  Toritani Hiroyuki

  Matsushita Kenichi (Ep. 5)

  Guest Role
• 
  Moriya Naoko

  Matsushita Akane (Ep. 5)

  Guest Role
• 
  Fujieda Yoshiki

  Sano (Ep. 5)

  Guest Role
• 
  Kataoka Hisamichi

  Sugimura (Ep. 5)

  Guest Role
• 
  Rokkaku Shinji

  Kaido (Ep. 5)

  Guest Role
• 
  Sato Ryuga

  Hanai Ayumu (Ep. 6)

  Guest Role
• 
  Kohama Momona

  Kawana Sakura (Ep. 6)

  Guest Role
• 
  Tonouchi Nijika

  Hasegawa Rin (Ep. 6)

  Guest Role
• 
  Ohta Yuno

  Osugi Minami [Child] (Ep. 6)

  Guest Role
• 
  Daito Shunsuke

  [Party host] (Ep. 6)

  Guest Role
• 
  Tanaka Makoto

  [Hairdresser] (Ep. 6)

  Guest Role
• 
  Hayasaka Miu

  [Minami's classmate] (Ep. 6)

  Guest Role
• 
  Kawada Aki

  [Minami's elementary school classmate] (Ep. 6)

  Guest Role
• 
  Fujimura Kinon

  [Party people] (Ep. 6)

  Guest Role
• 
  Eto Moe

  [Party people] (Ep. 6)

  Guest Role
• 
  Abe Rin

  [Party people] (Ep. 6)

  Guest Role
• 
  Kudo Haruka

  Majima Sarina (Ep. 7)

  Guest Role
• 
  Akama Mariko

  Cathy (Ep. 7)

  Guest Role
• 
  Kanno Hisao

  Hikomaru (Ep. 7)

  Guest Role
• 
  Onikura Ryudai

  [Sarina's friend] (Ep. 7)

  Guest Role
• 
  Boo Jiji

  [Old man who held a bomb] (Ep. 8)

  Guest Role
• 
  Otsu Yuhi

  [Yukimi's classmate] (Ep. 8-9)

  Guest Role
• 
  Sena Haruto

  [Yukimi's classmate] (Ep. 8-9)

  Guest Role
• 
  Ando An

  [Yukimi's classmate] (Ep. 8-9)

  Guest Role
• 
  Kitabayashi Tei

  [Old man in a wheelchair] (Ep. 8-9)

  Guest Role
• 
  Terada Azuki

  [Rei's elementary school classmate] (Ep. 9)

  Guest Role
• 
  Fukasawa Emi

  [Old woman in a wheelchair] (Ep. 9)

  Guest Role
• 
  Yamada Atsuki

  Uchimaki Shizuku [Child] (Ep. 9-10)

  Guest Role
• 
  Oguma Taiki

  Katsuragi Keita [Child] (Ep. 9-10)

  Guest Role
• 
  Shiraishi Shunya

  Katsuragi Keita (Ep. 10)

  Guest Role
• 
  Masana Bokuzo

  Tatsumi Torajiro (Ep. 10-11)

  Guest Role
• 
  Mizuno Tomonori

  Kagura (Ep. 11)

  Guest Role
• 
  kemio

  Ojima (Ep. 7)

  Guest Role

Voice Actor

• 
  Matsumura Mio

  [Airport announcer] (Ep. 11)

  Voice Actor