Doctor X

Composer

• 
  Sawada Kan

Director

• 
  Matsuda Hidetomo
• 
  Tamura Naoki

Narrator

• 
  Taguchi Tomorowo

Screenwriter

• 
  Nakazono Miho

Main Role

• 
  Yonekura Ryoko

  Daimon Michiko

  Main Role

Support Role

• 
  Kishibe Ittoku

  Kanbara Akira

  Support Role
• 
  Ito Shiro

  Busujima Ryunosuke [Hospital director/Professor]

  Support Role
• 
  Danta Yasunori

  Torii Takashi [Director of surgery department]

  Support Role
• 
  Uchida Yuki

  Jonouchi Hiromi [Anesthesiologist]

  Support Role
• 
  Tanaka Kei

  Morimoto Hikaru [Assistant surgeon]

  Support Role
• 
  Katsumura Masanobu

  Kaji Hideki/"Laparoscopic Magician" [Surgeon]

  Support Role
• 
  Suzuki Kosuke

  Hara Mamoru [Surgeon]

  Support Role
• 
  Hayashi Tantan

  Okumura Ai [Torii's secretary]

  Support Role
• 
  Muroi Shigeru

  Terayama Kaneko [Hospital's secretary]

  Support Role
• 
  Masaoka Taishi

  Handa Tadashi [Hospital's secretary]

  Support Role
• 
  Matsuda Kenji

  Shibata Yu [Freelance surgeon/ Mahjong playmate]

  Support Role
• 
  Inoue Takashi

  Mejiro Kengo [Freelance surgeon/ Mahjong playmate]

  Support Role
• 
  Komatsu Kazushige

  Shiraki Tohru [Radiologist]

  Support Role
• 
  Shibuki Jun

  Chiba Shonoko [Chief nurse]

  Support Role
• 
  Yamamoto Mizuki

  Koike Rie [Nurse]

  Support Role
• 
  Yonezawa Rumi

  Kato Mika [Nurse]

  Support Role
• 
  Nakano Hideki

  [Doctor]

  Support Role
• 
  Tano Yoshiki

  (Ep. 7)

  Support Role

Guest Role

• 
  Ryu Raita

  Kubo Shigeru [Hospital director/Professor] (Ep. 1)

  Guest Role
• 
  Fuwa Mansaku

  Ichinose Jiro ['Ichinose Gomu' President] (Ep. 1)

  Guest Role
• 
  Yamaguchi Miyako

  Ichinose Namiko [Jiro's wife] (Ep. 1)

  Guest Role
• 
  Tsubaki Takayuki

  [Morimoto's friend] (Ep. 1)

  Guest Role
• 
  Suzuki Akinofu

  [Morimoto's friend] (Ep. 1)

  Guest Role
• 
  Yajima Shunsaku

  (Ep. 1, 4, 6-8)

  Guest Role
• 
  Yamazaki Daisuke

  (Ep. 1, 7)

  Guest Role
• 
  Nishizawa Jinta

  Suzumeno Yoshito [Freelance anesthesiologist] (Ep. 2-3, 6)

  Guest Role
• 
  Hankai Kazuaki

  Nikaido Noboru ['Nikaido Publishing' president] (Ep. 2)

  Guest Role
• 
  Arai Yasuhiro

  Yasuda Satoru [Patient] (Ep. 2)

  Guest Role
• 
  Kimura Midoriko

  Yasuda Masayo [Satoru's wife] (Ep. 2)

  Guest Role
• 
  Nocchi

  (Ep. 2)

  Guest Role
• 
  Fujii Anna

  Jonouchi Mai [Hiromi's daughter] (Ep. 3, 5)

  Guest Role
• 
  Hiraiwa Kami

  Hanayama Mitsue [Food blogger] (Ep. 3)

  Guest Role
• 
  Nakamaru Shinsho

  Honda Tadashi [Mitsue's lawyer] (Ep. 3)

  Guest Role
• 
  Kimura Midori

  (Ep. 3)

  Guest Role
• 
  Kodama Takashi

  (Ep. 3)

  Guest Role
• 
  Mashita Yuki

  (Ep. 3)

  Guest Role
• 
  Sasahara Naoki

  (Ep. 3)

  Guest Role
• 
  Tsurumi Shingo

  Yotsuya Atsushi (Ep. 4)

  Guest Role
• 
  Akae Tamao

  Yoshinaga Mariko (Ep. 4)

  Guest Role
• 
  Uchida Shinichiro

  [Politician] (Ep. 4, 11)

  Guest Role
• 
  Sasaki Takuma

  (Ep. 4)

  Guest Role
• 
  Sagara Itsuki

  (Ep. 4)

  Guest Role
• 
  Ninomiya Akari

  Gokita Saki (Ep. 5)

  Guest Role
• 
  Fukushi Seiji

  Kishida Takuya (Ep. 5)

  Guest Role
• 
  Ishimaru Kenjiro

  Professor Soma (Ep.5)

  Guest Role
• 
  Musaka Naomasa

  Rokusaka Motohiko (Ep. 6)

  Guest Role
• 
  Yamamoto Koji

  Professor Hijikata Ikuya (Ep. 7-8)

  Guest Role
• 
  Kishimoto Kayoko

  Torii Nanako [Torii Takashi's wife] (Ep. 7-8)

  Guest Role
• 
  Kobayashi Nenji

  Teshigawara Tsuyoshi (Ep. 8)

  Guest Role
• 
  Tsuda Kanji

  Yagi Ryo [Black journalist] (Ep. 8)

  Guest Role
• 
  Kodama Kenji

  (Ep. 8)

  Guest Role
• 
  Kongochi Takeshi

  (Ep. 8)

  Guest Role
• 
  Ishii Teruyuki

  (Ep. 8)

  Guest Role
• 
  Kamino Naotaka

  (Ep. 1)

  Guest Role
• 
  Otada Naoki

  [Patient's family member] (Ep. 8)

  Guest Role

Unknown

• 
  Inoue Wakahiro Unknown
• 
  Yoshida Yuki Unknown
• 
  Inukai Wakahiro Unknown