4 Shimai Tantei Dan

Director

• 
  Tsunehiro Jouta
• 
  Shinjo Takehiko
• 
  Ikezoe Hiroshi

Editor

• 
  Hirakawa Masaharu

Original Creator

• 
  Akagawa Jiro

Producer

• 
  Yokochi Ikuei
• 
  Takayama Naoya

Screenwriter

• 
  Fukuda Takuro

Main Role

• 
  Kaho

  Sasamoto Yuriko

  Main Role
• 
  Nakagoshi Noriko

  Sasamoto Mari

  Main Role
• 
  Kato Natsuki

  Sasamoto Ayako

  Main Role
• 
  Ichikawa Yui

  Sasamoto Tamami

  Main Role

Support Role

• 
  Takenaka Naoto

  Sasamoto Shuhei

  Support Role
• 
  Yoshizawa Hisashi

  Kunitomo Yasuyuki

  Support Role
• 
  Kondo Yoshimasa

  Misaki Taro

  Support Role
• 
  Hino Yojin

  Yamada Kunio

  Support Role
• 
  Hara Fumina

  Tajima Asuka

  Support Role
• 
  Sano Motoya

  Detective Nakayama

  Support Role
• 
  Namase Katsuhisa

  Jounouchi Hideki

  Support Role
• 
  Muroi Shigeru

  Miyamoto Kazuyo

  Support Role

Guest Role

• 
  Kazama Toru

  Ando Kenji (Ep. 1)

  Guest Role
• 
  Wakabayashi Shiho

  Ando Michiko (Ep. 1)

  Guest Role
• 
  Masu Takeshi

  Uematsu Hiroshi (Ep. 1, 5)

  Guest Role
• 
  Ueno Natsuhi

  Kanda Hatsue (Ep. 1)

  Guest Role
• 
  Kawashima Naomi

  Hamada Masako (Ep. 2)

  Guest Role
• 
  Aimoto Kumiko

  Shiratori Kimiyo (Ep. 2)

  Guest Role
• 
  Maeda Aki

  Shiratori Sanae (Ep. 2)

  Guest Role
• 
  David Ito

  Takaoka Kensuke (Ep. 2)

  Guest Role
• 
  Matsuo Bannai

  Onuma Kengo (Ep. 2)

  Guest Role
• 
  Umemiya Masako

  Hara Tomoko (Ep. 2)

  Guest Role
• 
  Oshima Satoko

  Konishi Kiyoko (Ep. 2)

  Guest Role
• 
  Yasui Kenichiro

  Konishi Eiichi (Ep. 2)

  Guest Role
• 
  Hasegawa Hatsunori

  Nishizaki Atsuo (Ep. 3)

  Guest Role
• 
  Maeda Ai

  Morita Akane (Ep. 3)

  Guest Role
• 
  Saito Shota

  Onoda Shuichi (Ep. 3)

  Guest Role
• 
  Kato Mayuko

  Yamagata Setsuko (Ep. 3)

  Guest Role
• 
  Sone Yuta

  Yazawa Koichi (Ep. 3)

  Guest Role
• 
  Ozawa Maju

  Murota Haruyo (Ep. 4)

  Guest Role
• 
  Nakajima Hiroko

  Murai Satoko (Ep. 4)

  Guest Role
• 
  Nonami Maho

  Horie Ryoko (Ep. 4)

  Guest Role
• 
  Tachibana Misato

  Kinoshita Nobuko (Ep.4)

  Guest Role
• 
  Nakamura Shigeyuki

  Kinoshita Norio (Ep. 4)

  Guest Role
• 
  Tachihara Mai

  Uchiyama Midori (Ep. 4)

  Guest Role
• 
  Matsuzawa Kazuyuki

  Horie Hitoshi (Ep. 4)

  Guest Role
• 
  Yamada Meikyo

  Murota Katsuhiko (Ep. 4)

  Guest Role
• 
  Hakamada Yoshihiko

  Sakuma Takashi (Ep. 5)

  Guest Role
• 
  Sato Tamao

  Miyashita Akari (Ep. 5)

  Guest Role
• 
  Aoi

  Ueda Maki (Ep. 5)

  Guest Role
• 
  Funaki Sachi

  Utsumi Reiko (Ep. 5)

  Guest Role
• 
  Watanabe Kohei

  Negishi Takenori (Ep. 5)

  Guest Role
• 
  Asami Reina

  Morishita Yui (Ep. 6)

  Guest Role
• 
  Kaito Ken

  Tamura Katsuyuki (Ep. 6)

  Guest Role
• 
  Anan Kenji

  Masubuchi Mikio (Ep. 6)

  Guest Role
• 
  Suzuki Sachiko

  Masubuchi Mitsuko (Ep. .6)

  Guest Role
• 
  Jinbo Satoshi

  Mizuguchi Nobuyuki (Ep. 6)

  Guest Role
• 
  Terada Minori

  Miyake Kozaburo (Ep. 6)

  Guest Role
• 
  Wakaba Makino

  Yotsuya Mizuho (Ep. 6)

  Guest Role
• 
  Miyaji Mao

  Yonehara Tomoko (Ep. 7)

  Guest Role
• 
  Saito Keita

  Ichikawa Kazuto (Ep. 7)

  Guest Role
• 
  Kunihiro Tomiyuki

  Yonehara Tatsuya (Ep. 7)

  Guest Role
• 
  Ishino Mako

  Yonehara Satomi (Ep. 7)

  Guest Role
• 
  Kanayama Kazuhiko

  Kazeno Akira (Ep. 7)

  Guest Role
• 
  Hari Sakiko

  Maeda Miyuki (Ep. 7)

  Guest Role
• 
  Kaneko Ken

  Takada Kyoji (Ep. 8)

  Guest Role
• 
  Hinagata Akiko

  Yamane Reina (Ep. 8)

  Guest Role
• 
  Fuse Hiroshi

  Murai Yasuo (Ep.8)

  Guest Role
• 
  Teraizumi Ken

  Yamane Teiichi (Ep. 8)

  Guest Role
• 
  Mizusawa Aki

  Yamane Shizue (Ep. 8)

  Guest Role
• 
  Ohba Kumiko

  Fukano Sumiko (Ep. 8)

  Guest Role
• 
  Oshima Yoko

  Mita Sakiko (Ep. 8)

  Guest Role
• 
  Akimoto Naomi

  Tabuchi Kaorri (Ep. 9)

  Guest Role
• 
  Haba Yuichi

  Hirano Takuro (Ep. 9)

  Guest Role
• 
  Handa Kento

  Miyata Koichi (Ep. 9)

  Guest Role
• 
  Kudo Shunsaku

  Onuma Joji (Ep. 9)

  Guest Role
• 
  Machida Masanori

  Tabuchi Yasuo (Ep. 9)

  Guest Role
• 
  Wagatsuma Miwako

  [Classmate]

  Guest Role
• 
  Mori Yoshiyuki

  [Apartment manager]

  Guest Role

Unknown

• 
  Inoue Rinna Unknown
• 
  Furugori Masahiro Unknown