The King's Doctor

Assistant Director

• 
  Park Seung Woo

Composer

• 
  Jung Se Rin

Director

• 
  Choi Jung Gyu
• 
  Lee Byung Hoon

Screenwriter

• 
  Kim Yi Young

Main Role

• 
  Cho Seung Woo

  Baek Gwang Hyun

  Main Role
• 
  Lee Yo Won

  Kang Ji Nyung

  Main Role

Support Role

• 
  Kim So Eun

  Princess Suk Hwi

  Support Role
• 
  Son Chang Min

  Lee Myung Hwan

  Support Role
• 
  Yoo Sun

  Jang In Joo

  Support Role
• 
  Lee Sang Woo

  Lee Sung Ha

  Support Role
• 
  Han Sang Jin

  King Hyeon Jong

  Support Role
• 
  Kim Chang Wan

  Jung Sung Jo

  Support Role
• 
  Lee Soon Jae

  Ko Ju Man

  Support Role
• 
  Jo Bo Ah

  Seo Eun Seo

  Support Role
• 
  Choi Soo Rin

  Joo In Ok

  Support Role
• 
  Joo Jin Mo

  Guru / Shaman Saam

  Support Role
• 
  Choi Duk Moon

  Hyo Jong

  Support Role
• 
  Park Hyuk Kwon

  Seok Goo

  Support Role
• 
  Ahn Do Kyu

  Baek Gwang Hyun [Child]

  Support Role
• 
  Jang Hee Woong

  Yoon Tae Joo

  Support Role
• 
  Oh In Hye

  Jung Mal Geum

  Support Role
• 
  Ahn Yeo Jin

  Court Lady Kwak

  Support Role
• 
  Lee Jong Goo

  [Myung Hwan's stepfather]

  Support Role
• 
  Yoon Hee Seok

  Jung Cha Shik

  Support Role
• 
  In Gyo Jin

  Kwon Seok Chul

  Support Role
• 
  Choi Bum Ho

  Cho Jeong Cheol

  Support Role
• 
  Kim Kyul

  [Tae Soo's son-in-law]

  Support Role
• 
  Uhm Hyun Kyung

  So Ga Young

  Support Role
• 
  Lee Kwan Hoon

  Ma Do Heum [Princess Suk Hwi's escort guard]

  Support Role
• 
  Lee Doo Suk

  Kim Ju Sik

  Support Role
• 
  Jung Se Hyung

  Jung Tae Seop

  Support Role
• 
  Jeon Woon Jong

  Sa Ri

  Support Role
• 
  Lee Hee Do

  Choo Ki Bae

  Support Role
• 
  Maeng Sang Hoon

  Oh Jang Bak

  Support Role
• 
  Kim Ho Young

  Oh Kyu Tae

  Support Role
• 
  Kim Yeong Im

  Jo Bi

  Support Role
• 
  Yoon Bong Gil

  Park Dae Mang

  Support Role
• 
  Lee Sook

  Choi Ga Bi

  Support Role
• 
  Seo Beom Shik

  Kang Jeong Du [Military officer loyal to Lee Myung Hwan]

  Support Role
• 
  Lee Ka Hyeon

  Queen Myungsung

  Support Role

Guest Role

• 
  Yoon Jin Ho

  Choi Hyung Wook

  Guest Role
• 
  Sunwoo Jae Duk

  King In Jo (Ep. 1)

  Guest Role
• 
  Seo Hyun Jin

  Jo So Yong (Ep. 1)

  Guest Role
• 
  Jung Gyu Woon

  Prince So Hyun (Ep. 1)

  Guest Role
• 
  Jang Young Nam

  [Do Joon's wife] (Ep. 1)

  Guest Role
• 
  Jung Yoon Suk

  [Child with chicken] (Ep. 8)

  Guest Role
• 
  Kang Ki Young

  [Horse doctor] (Ep. 11-12, 26)

  Guest Role
• 
  Jeon Noh Min

  Kang Do Joon

  Guest Role
• 
  Im Byung Ki

  Soo Bo

  Guest Role
• 
  Ahn Sang Tae

  Ja Bong

  Guest Role
• 
  Kwon Tae Won

  Kim Ja Jeom

  Guest Role
• 
  Jo Duk Hyun

  Lee Hyung Ik

  Guest Role
• 
  Kim Hye Sun

  Queen Inseon

  Guest Role
• 
  Park Young Ji

  Hong Yoon Sik

  Guest Role
• 
  Oh Eun Ho

  Hong Mi Geum

  Guest Role
• 
  Lee Hee Jin

  Queen Woo Hui

  Guest Role
• 
  Nam Da Reum

  Lee Sung Ha [Young]

  Guest Role
• 
  Kang Han Byul

  Crown Prince [Child]

  Guest Role
• 
  Roh Jeong Eui

  Kang Ji Nyung [Child]

  Guest Role
• 
  Lee Sang Hyun

  [Man]

  Guest Role
• 
  Jang Tae Min

  [Old man]

  Guest Role
• 
  Lee Seung Won

  [Dog owner]

  Guest Role
• 
  Han Kook Jin

  [Royal guard]

  Guest Role
• 
  Jeon Heon Tae

  [Horse doctor]

  Guest Role
• 
  Song Yong Tae

  [Public officer]

  Guest Role
• 
  Kim Ik Tae

  [Public official]

  Guest Role
• 
  Song Min Hyung

  [Vice governor]

  Guest Role
• 
  Yang Han Yeol

  [Ji Nyung's friend]

  Guest Role
• 
  Seong Chan Ho

  [Uigeumbu official]

  Guest Role
• 
  Yoshimura Kenichi

  [Japan's Yakuza Boss]

  Guest Role
• 
  Kim Jung Soo

  [Medical Dept. Official]

  Guest Role
• 
  Gyeong Su Jin

  [Prince So Hyeon's wife]

  Guest Role
• 
  Oh Jung Tae

  [Roughneck ringleader]

  Guest Role
• 
  Jung Dong Gyu

  [Uigeumbu interrogator]

  Guest Role
• 
  Joo Hui Jung Guest Role
• 
  Gong Jae Won Guest Role
• 
  Go Jin Myung Guest Role
• 
  Gi Yeon Ho Guest Role
• 
  Hong Seung Beom Guest Role
• 
  Seo Kwang Jae Guest Role
• 
  Kang Shin Goo Guest Role
• 
  Byeon Woo Jong Guest Role
• 
  Jo Hyung Rae Guest Role
• 
  Yang Seung Geol Guest Role
• 
  Go Byung Taek Guest Role
• 
  Choi Ye Jin

  Court Lady Nam

  Guest Role

Unknown

• 
  Lee Hyun Woong Unknown
• 
  Park Seong Kyun Unknown
• 
  Han Choon Il Unknown
• 
  Son Jung Rim Unknown
• 
  Kim Do Hyeong Unknown
• 
  Lee Sung Ho Unknown
• 
  Kim Jong Ho Unknown
• 
  Lim Dong Yoon Unknown
• 
  Go Won Seok Unknown
• 
  Heo Ji Eun Unknown
• 
  Ko Tae Jin Unknown