Tantei Gakuen Q

Director

• 
  Inomata Ryuichi
• 
  Otsuka Kyoji
• 
  Ishio Jun

Screenwriter

• 
  Watanabe Yusuke
• 
  Oishi Tetsuya

Main Role

• 
  Kamiki Ryunosuke

  Kyuu

  Main Role
• 
  Shida Mirai

  Minami Megumi

  Main Role
• 
  Yamada Ryosuke

  Amakusa Ryu

  Main Role
• 
  Wakaba Katsumi

  Narusawa Kazuma

  Main Role
• 
  Kaname Jun

  Toyama Kintaro

  Main Role

Support Role

• 
  Jinnai Takanori

  Dan Morihiko

  Support Role
• 
  Yamamoto Taro

  Nanami Kotaro

  Support Role
• 
  Suzuki Kazuma

  Kerberos

  Support Role
• 
  Okunuki Kaoru

  Yurie

  Support Role
• 
  Saiki Shigeru

  Inspector Moroboshi

  Support Role
• 
  Hoshino Gen

  Detective Nekoda

  Support Role
• 
  Akita Makoto

  Uemura Haruka

  Support Role

Guest Role

• 
  Moriguchi Yoko

  Yoneyama Ryoko (Ep. 1)

  Guest Role
• 
  Emoto Tokio

  Tezuka Akira (Ep. 1)

  Guest Role
• 
  Kakiuchi Ayami

  Okada Ritsuko (Ep. 1)

  Guest Role
• 
  Iida Riho

  Sasaki Madoka (Ep. 1)

  Guest Role
• 
  Iwai Nanase

  Nishimura Shizuka (Ep. 1)

  Guest Role
• 
  Ito Miki

  Omori Kyoko (Ep. 1)

  Guest Role
• 
  Tanaka Yoji

  [Shizuka's father] (Ep. 1)

  Guest Role
• 
  Ono Atsuko

  [Madoka's grandmother] (Ep. 1)

  Guest Role
• 
  Hongo Kanata

  Makino Daisuke (Ep. 2)

  Guest Role
• 
  Jinbo Satoshi

  Igarashi Takumi (Ep. 2)

  Guest Role
• 
  Yoshitake Reo

  Takeyama Yuuki (Ep. 2)

  Guest Role
• 
  Yanagita Erika

  Suzuki Ayaka (Ep. 2)

  Guest Role
• 
  Kumabe Yohei

  Morita Yuichi (Ep. 2)

  Guest Role
• 
  Aoyagi Ruito

  [Street dance leader] (Ep. 2)

  Guest Role
• 
  Ikeda Ai

  [Street dance girl] (Ep. 2)

  Guest Role
• 
  Ichikawa Yui

  Mizuno Yoko (Ep. 3)

  Guest Role
• 
  Isaki Mitsunori

  Ochiai (Ep. 3)

  Guest Role
• 
  Fukami Motoki

  Watanabe (Ep. 3)

  Guest Role
• 
  Nagata Anna

  Tamura Yuki (Ep. 3)

  Guest Role
• 
  Kousen

  Takada (Ep. 3)

  Guest Role
• 
  Ochiai Motoki

  Tominaga Masashi (Ep. 4-5)

  Guest Role
• 
  Wakaba Ryuya

  Sakuma Hibiki (Ep. 4-5)

  Guest Role
• 
  Ono Kensho

  Kameda Junya (Ep. 4-5)

  Guest Role
• 
  Suzuki Kasumi

  Asabuki Maya (Ep. 4-5)

  Guest Role
• 
  Tajima Yumika

  Toya Kuniko (Ep. 4-5)

  Guest Role
• 
  Takanashi Rin

  Ogura Emina (Ep. 4-5)

  Guest Role
• 
  Taguchi Kazumasa

  [Security guard] (Ep. 4-5)

  Guest Role
• 
  Yamazaki Yuta

  Fukunaga Ukon (Ep. 6)

  Guest Role
• 
  Satoi Kenta

  Fukunaga Samon (Ep. 6)

  Guest Role
• 
  Nishiyama Mayuko

  Fukunaga Tomoko (Ep. 6)

  Guest Role
• 
  Yamaguchi Miyako

  Fukunaga Hazuki (Ep. 6)

  Guest Role
• 
  Yamashita Shinji

  Toyama Kinzaburo (Ep. 7)

  Guest Role
• 
  Suho Reiko

  Taguchi Ryoko (Ep. 7)

  Guest Role
• 
  Namioka Kazuki

  Mimasaka Ryusuke (Ep. 7)

  Guest Role
• 
  Kamimura Aika

  Okajima Yayoi (Ep. 7)

  Guest Role
• 
  Kinami Haruka

  Nishizawa Maki (Ep. 7)

  Guest Role
• 
  Nozawa Ippei

  [Police officer] (Ep. 7)

  Guest Role
• 
  Suzuki Kosuke

  Asano Takuro (Ep. 8)

  Guest Role
• 
  Iwaido Seiko

  Reika (Ep. 8)

  Guest Role
• 
  Kayo Aiko

  Setouchi Tsugumi (Ep. 8)

  Guest Role
• 
  Akiyama Nana

  Honoka (Ep. 8)

  Guest Role
• 
  Muro Tsuyoshi

  [Takuro's friend] (Ep. 8)

  Guest Role
• 
  Hosokawa Shigeki

  Renjo Satoru (Ep. 9)

  Guest Role
• 
  Hasegawa Tomoharu

  Tanaka (Ep. 9)

  Guest Role
• 
  Nagano Satomi

  [Doctor] (Ep. 9)

  Guest Role
• 
  Maido Yutaka

  Nakamura (Ep. 9)

  Guest Role
• 
  Nakamura Sakuya

  Renjo Kyu [Young] (Ep. 9)

  Guest Role
• 
  Tanaka Minoru

  Benijo Kyosuke (Ep. 10-11)

  Guest Role
• 
  Matsuo Reiko

  Biki Nanamura (Ep. 10-11)

  Guest Role
• 
  Murano Mia

  Kagiya Kikyo (Ep. 10-11)

  Guest Role
• 
  Kosuda Yasuto

  Amado Takuma (Ep. 10-11)

  Guest Role
• 
  Yamashita Hiroko

  Benijo Tsubaki (Ep. 10-11)

  Guest Role
• 
  Wakamatsu Takeshi

  King Hades (Ep. 11)

  Guest Role

Unknown

• 
  Kawashima Dai Unknown