Missing Crown Prince

Director

• 
  Kim Jin Man

Screenwriter

• 
  Park Chul
• 
  Kim Ji Soo

Main Role

• 
  Suho

  Prince Lee Gon

  Main Role
• 
  Hong Ye Ji

  Choi Myeong Yun

  Main Role
• 
  Myung Se Bin

  Queen Dowager Min Su Ryeon

  Main Role
• 
  Kim Min Kyu

  Grand Prince Do Seong

  Main Role
• 
  Kim Joo Heon

  Choi Sang Rok

  Main Role

Support Role

• 
  Yoo Se Rye

  Jung Jeon Yun / Queen Yun [King Hae Jong’s second wife]

  Support Role
• 
  Jeon Jin Oh

  King Hae Jong [Lee Gon and Do Seong's father]

  Support Role
• 
  Cha Kwang Soo

  Yun I Gyeom [Queen Yun's father]

  Support Role
• 
  Kim Seol Jin

  Gab Seok [Lee Gon's companion]

  Support Role
• 
  Park Sung Yun

  Kim Sang Gung [Queen Dowager Min's lady-in-waiting]

  Support Role
• 
  Son Jong Bum

  Yun Jeong Dae [Head of capital bureau]

  Support Role
• 
  Kim Sung Hyun

  Han Sang Su [Lee Gon's eunuch]

  Support Role
• 
  Kim Tae Geun

  Kim Dae Seung [Office of Censors's official]

  Support Role
• 
  Choi Jong Yoon

  Jung Yeong [Royal guard]

  Support Role
• 
  Seo Jae Woo

  Moo Baek [Sang Rok's bodyguard]

  Support Role
• 
  Kim Noh Jin

  O Wol I [Myeong Yun's maid]

  Support Role
• 
  Sul Ji Yoon

  Cho Sang Gung [Queen Yun's lady-in-waiting]

  Support Role
• 
  Nam Kyung Eup

  Moon Hyeong [Lee Gon's maternal grandfather]

  Support Role
• 
  Park Gi Ho

  [King Hae Jong's eunuch]

  Support Role
• 
  Won Seong Yeon

  Cheol Du [Do Seong's confidant]

  Support Role

Guest Role

• 
  Cho Jin Se

  Prince Hae Seong (Ep. 1)

  Guest Role
• 
  Park Sung Woo

  Heo Jin Su [Physician] (Ep. 1)

  Guest Role
• 
  Moon Seo Yeon

  Jong Geum [Court maid] (Ep. 1)

  Guest Role
• 
  Jang Moon Seok

  [Thug] (Ep. 1)

  Guest Role
• 
  Park Jong Bo

  [Servant] (Ep. 1)

  Guest Role
• 
  Kim Yong Myung

  [Gang boss] (Ep. 1-2)

  Guest Role
• 
  Kim Won Hoon

  [Storyteller] (Ep. 1)

  Guest Role
• 
  Cho Seok In

  [Clinic patient] (Ep. 1)

  Guest Role
• 
  Seo Beom Shik

  [Ex-royal guard] (Ep. 1)

  Guest Role
• 
  Kim Kwan Jang

  [Gae Ttong’s father] (Ep. 1)

  Guest Role
• 
  Lee Moo Nyoung

  [Storyteller's listener] (Ep. 1)

  Guest Role
• 
  Kim Jin Ok

  [Tavern worker] (Ep. 2)

  Guest Role
• 
  Choi Mi Hye

  [Royal taster] (Ep. 3)

  Guest Role
• 
  Kim Dae Kook

  [Physician Heo’s servant] (Ep. 3)

  Guest Role
• 
  Yang Hee Won

  Prince Do Seong [Young] (Ep. 4)

  Guest Role
• 
  Jung Hyun Joon

  Prince Lee Gon [Young] (Ep. 4)

  Guest Role
• 
  Kim Young Sun

  [Royal taster] (Ep. 4)

  Guest Role
• 
  Park Gi Seon

  [Royal physician] (Ep. 5)

  Guest Role
• 
  Ji Sung Geun

  [Royal physician] (Ep. 6)

  Guest Role
• 
  Lee Woo Shin

  [Physician] (Ep. 7)

  Guest Role
• 
  Uhm Tae Ok

  [Physician] (Ep. 7-8)

  Guest Role
• 
  Hong Suk Bin

  Lord Min (Ep. 8)

  Guest Role
• 
  Ahn Suk Hwan

  King Seok Jong (Ep. 8)

  Guest Role
• 
  Shin Ha Jun

  [Magistrate] (Ep. 8)

  Guest Role
• 
  Kim Wang Do

  [Magistrate's subordinate] (Ep. 8)

  Guest Role
• 
  Jang Eui Don

  [Magistrate] (Ep. 8-9)

  Guest Role
• 
  Kim Do Hyeong

  [Eunuch] (Ep. 9)

  Guest Role
• 
  Park Geon Rak

  [Yi Gun's uncle] (Ep. 9)

  Guest Role
• 
  Jung Jae Jin

  [Coffin maker] (Ep. 10)

  Guest Role
• 
  Seo Kwang Jae

  [Vassal] (Ep. 11)

  Guest Role
• 
  Moon Ki Young

  [Court lady] (Ep. 14)

  Guest Role
• 
  Kim Joo Ah

  [Court lady] (Ep. 14)

  Guest Role
• 
  Jung Hye Kyung

  [Monk] (Ep. 15)

  Guest Role
• 
  Son Seon Geun

  [Smuggler] (Ep. 15-16)

  Guest Role
• 
  Hong Dae Sung

  [Bandit] (Ep. 17)

  Guest Role
• 
  Park Seong Kyun

  [Criminal] (Ep. 17)

  Guest Role
• 
  Lee Jae Wook

  [Criminal] (Ep. 17)

  Guest Role
• 
  Lee Yong Nyeo

  [Face reader] (Ep. 18)

  Guest Role
• 
  Choi Gyo Shik

  [Governor] (Ep. 20)

  Guest Role
• 
  Kim Byung Ok

  Geo U

  Guest Role
• 
  Park Ki Duk

  [Eunuch]

  Guest Role
• 
  Choi Si A

  Sun Ok [Court lady]

  Guest Role