Saiai (2021)

Composer

• 
  Yokoyama Masaru

Director

• 
  Tsukahara Ayuko
• 
  Yamamoto Takeyoshi
• 
  Murao Yoshiaki

Producer

• 
  Arai Junko

Screenwriter

• 
  Okudera Satoko
• 
  Shimizu Yukako

Main Role

• 
  Yoshitaka Yuriko

  Sanada Rio

  Main Role
• 
  Matsushita Kouhei

  Miyazaki Daiki

  Main Role
• 
  Iura Arata

  Kase Kenichiro

  Main Role

Support Role

• 
  Tanaka Minami

  Tachibana Shiori

  Support Role
• 
  Oikawa Mitsuhiro

  Goto Shinsuke

  Support Role
• 
  Mitsuishi Ken

  Asamiya Tatsuo

  Support Role
• 
  Yakushimaru Hiroko

  Sanada Azusa

  Support Role
• 
  Sakuma Yui

  Kuwata Hitomi

  Support Role
• 
  Takahashi Fumiya

  Asamiya Yu / Informant

  Support Role
• 
  Okuno Eita

  Sanada Masanobu

  Support Role
• 
  Sakou Yoshi

  Watanabe Akira

  Support Role
• 
  Tsuda Kenjiro

  Yamao Atsushi

  Support Role
• 
  Okayama Amane

  Fujii Hayato

  Support Role
• 
  Kanai Sonde

  Nagashima Toru

  Support Role
• 
  Misaki Ayame

  Aoki Nana

  Support Role
• 
  Sugawara Ken

  Takagi Ryunosuke

  Support Role
• 
  Miyashita Kanako

  Kojima Ayaka

  Support Role
• 
  Kayashima Narumi

  Nagaoka Megumi

  Support Role
• 
  Hiiragi Hinata

  Asamiya Yu

  Support Role
• 
  Minemura Rie

  Umino Kozue

  Support Role
• 
  Asai Daichi

  Watanabe Kosuke

  Support Role

Guest Role

• 
  Shibue Joji

  Yano Susumu [Coach of Shiroyama University's field and track club] (Ep. 1-2)

  Guest Role
• 
  Yoshizawa Ken

  [Doctor] (Ep. 1)

  Guest Role
• 
  Sato Ryo

  [Rio's friend] (Ep. 1)

  Guest Role
• 
  Onohara Maiko

  [Rio's friend] (Ep. 1)

  Guest Role
• 
  Matsukuma Tsurumatsu

  [Housekeeper at the Sanada family] (Ep. 2)

  Guest Role
• 
  Boo Jiji

  Mine [Employee at Monjayaki] (Ep. 3, 6-7, 9-10)

  Guest Role
• 
  Miyazaki Shuto

  Iguchi [Detective at Komazawa Police Station] (Ep. 4-6)

  Guest Role
• 
  Kawakami Yuri

  Orihara Satomi [Clinical trial coordinator] (Ep. 4, 8)

  Guest Role
• 
  Kawamorita Masato

  [Doctor] (Ep. 4)

  Guest Role
• 
  Eishin

  [The man who kidnapped Shiori] (Ep. 5)

  Guest Role
• 
  Iwaya Kenji

  Yuasa [Witness at the victim's crime scene] (Ep. 6)

  Guest Role
• 
  Yamashina Keita

  [A man who analyzed the video by Kase's request] (Ep. 6)

  Guest Role
• 
  Machii Shouma

  [Employee at Ramen shop] (Ep. 6)

  Guest Role
• 
  Buffalo Goro A

  Inuzuka (Ep. 7-8)

  Guest Role
• 
  Naganuma Ikuya

  Kenji [Bartender at 'Rock Bottom' bar] (Ep. 7)

  Guest Role
• 
  Kanehara Ryotaro

  [Doctor] (Ep. 7)

  Guest Role
• 
  Hotaru Yukijiro

  Yanagi [Forensic doctor] (Ep. 8, 10)

  Guest Role
• 
  Nakano Tsuyoshi

  Sone [Detective] (Ep. 9-10)

  Guest Role
• 
  Yagishita Kouga

  [Boy] (Ep. 9)

  Guest Role
• 
  Nagatomo Ikuma

  [Reporter] (Ep. 9)

  Guest Role
• 
  Inoue Hiroshi

  [Commentator on news program] (Ep. 9)

  Guest Role
• 
  Asada Miyoko

  Maki [Shiori's mother] (Ep. 10)

  Guest Role
• 
  Furugori Masahiro

  (Ep. 10)

  Guest Role
• 
  Yatabe Shun

  Morishita Takashi (Ep. 3)

  Guest Role
• 
  Ebata Hidehisa

  (Ep. 4)

  Guest Role

Unknown

• 
  Sugawara Daishi Unknown
• 
  Sato Shunsuke Unknown