Chocolate

Director

• 
  Lee Hyung Min

Screenwriter

• 
  Lee Kyung Hee

Main Role

• 
  Yoon Kye Sang

  Lee Kang

  Main Role
• 
  Ha Ji Won

  Moon Cha Young

  Main Role
• 
  Jang Seung Jo

  Lee Joon

  Main Role
• 
  Min Jin Woong

  Moon Tae Hyun

  Main Role

Support Role

• 
  Kang Boo Ja

  Han Yong Sul

  Support Role
• 
  Lee Jae Ryong

  Lee Seung Hoon

  Support Role
• 
  Kim Sun Kyung

  Yoon Hye Mi

  Support Role
• 
  Yoon Ye Hee

  Lee Seo Hoon

  Support Role
• 
  Kim Won Hae

  Kwon Hyun Suk

  Support Role
• 
  Kim Ho Jung

  Han Sun Ae

  Support Role
• 
  Yeom Hye Ran

  Ha Young Shil

  Support Role
• 
  Lee Ju Yeon

  Bae Na Ra

  Support Role
• 
  Lee Chan Yoo

  Yun Min Yong

  Support Role
• 
  Park Jun Hyuk

  "Agent 119"

  Support Role

Guest Role

• 
  Yoo Teo

  Kwon Min Sung

  Guest Role
• 
  Kim Min Joon

  Moon Tae Hyun [Young] (Ep. 1)

  Guest Role
• 
  Kim Geon Ho

  [Moon Cha Young's dad] (Ep. 1)

  Guest Role
• 
  Choi Sung Won

  [Jang Yu Suk's boyfriend] (Ep. 1)

  Guest Role
• 
  Shin Hee Gook

  [Doctor] (Ep. 1)

  Guest Role
• 
  Jang Deok Ju

  Ha Dong Goo [Fisherman] (Ep. 1-2, 12)

  Guest Role
• 
  Kang Tae Ung

  Lee Joon [Young] (Ep. 1-2, 9, 11, 14, 16)

  Guest Role
• 
  Oh Ja Hun

  Lee Kang [Young] (Ep. 1-3, 7, 9, 12, 14, 16)

  Guest Role
• 
  Do Yeong Seo

  Moon Cha Young [Young] (Ep. 1, 4, 6, 10, 16)

  Guest Role
• 
  Park Ok Chool

  Nurse Park (Ep. 1, 6)

  Guest Role
• 
  Kang Yeon Jung

  Jang Yu Suk [Patient] (Ep. 1)

  Guest Role
• 
  Jung Yu Mi

  [Cha Yeong's mom] (Ep. 1, 16)

  Guest Role
• 
  Yoo Dam Yeon

  [Restaurant manager] (Ep. 2)

  Guest Role
• 
  Ahn Chang Hwan

  Seo Kang Ho [Cha Young's blind date candidate] (Ep. 2)

  Guest Role
• 
  Kim Jo Yeon

  [Fellow] (Ep. 2)

  Guest Role
• 
  Garrison Michael Farquharson-Keener

  [Greece police officer] (Ep. 2)

  Guest Role
• 
  Myung Jae Hwan

  Do Yeon (Ep. 2-4)

  Guest Role
• 
  Lee Hyo Bin

  Kim In Ju [Min Sung's fiancée] (Ep. 3)

  Guest Role
• 
  Joo Byung Ha

  [Intern doctor] (Ep. 3)

  Guest Role
• 
  Kim Hye Jung

  [Yong Sul's household maid] (Ep. 3, 9-11)

  Guest Role
• 
  Woo Sung Min

  Yun Ji Yong [Hospice Patient / Min Yong's youngest brother] (Ep. 4-8)

  Guest Role
• 
  Lee Han Seo

  Ye Sol (Ep. 4-5, 7, 9-10, 16)

  Guest Role
• 
  Lee Yong Yi

  Jang Suk Ja (Ep. 4-8)

  Guest Role
• 
  Jeon Sung Ae

  Bong Yong Sun (Ep. 4-8)

  Guest Role
• 
  Kim Ja Young

  [Yun Ji Yong's grandmother](Ep. 4)

  Guest Role
• 
  Lee Moo Saeng

  Jung Se Yun [Professor / Hee Ju's husband] (Ep. 5-6, 8)

  Guest Role
• 
  Geum Hyo Min

  Kim Hee Ju [Hospice patient] (Ep. 5-8)

  Guest Role
• 
  O Yeong Su

  Mr. Kim [Hospice patient] (Ep. 5)

  Guest Role
• 
  Choi Ga In

  Kim Ha Young [Hospice Patient] (Ep. 5, 7, 10)

  Guest Role
• 
  Yang Joo Ho

  [Kim Ha Young's husband] (Ep. 5, 7, 10)

  Guest Role
• 
  Yoon Boo Jin

  Gyung Su [Hospice chef] (Ep. 5, 14)

  Guest Role
• 
  Kim Bi Bi

  Yang Sung Hee [Ji Yong's mother] (Ep. 6-8)

  Guest Role
• 
  Yook Mi Ra

  [Chairman Jo's wife] (Ep. 6)

  Guest Role
• 
  Seo Dong Hyun

  Lee Joon [Teen](Ep. 7)

  Guest Role
• 
  Ha Young

  Kim Hee Ju [Teen] (Ep. 7)

  Guest Role
• 
  Jeon Woon Jong

  [Detective] (Ep. 8)

  Guest Role
• 
  Lee Sae Yoon

  Yun Sung Eun [Doctor] (Ep. 8)

  Guest Role
• 
  Won Geun Hee

  [Han Yong Sul's brother-in-law] (Ep. 8)

  Guest Role
• 
  Yoon Kap Soo

  [Hospital board of director] (Ep. 8)

  Guest Role
• 
  Trey Noh

  Michael [Hospice patient] (Ep. 8, 10-12)

  Guest Role
• 
  Kim Mi Hwa

  Gwang Suk [Michael's birth mother] (Ep. 9-13)

  Guest Role
• 
  Yoo In Soo

  Jo Seung Gu [Michael's twin brother] (Ep. 9-11)

  Guest Role
• 
  Choi Yoon Woo

  Seong Cheol [Young (Ep. 10)

  Guest Role
• 
  Jiyun Kim Huong

  Hoang (Ep. 10)

  Guest Role
• 
  Shin Dong Ryuk

  Han Jeong Gi [Hospice patient] (Ep. 10)

  Guest Role
• 
  Park Mi Ri

  [Woman asking for directions] (Ep. 10)

  Guest Role
• 
  Hong Suk Youn

  [Ye Sol's grandfather] (Ep. 10, 12)

  Guest Role
• 
  Jeon Seok Ho

  Min Dae Shik [Young Shil's ex-boyfriend / Hospice Patient] (Ep. 11, 14-15)

  Guest Role
• 
  Kim Yu Bin

  Oh Jung Bok [Ha Dong Goo's niece] (Ep. 11-13)

  Guest Role
• 
  Maeng Bong Hak

  Mr. Im [Lawyer] (Ep. 12)

  Guest Role
• 
  Kim Jae Rok

  [Young Shil's cousin] (Ep. 12)

  Guest Role
• 
  Yoon Bo Ra

  Hui Na [Hospice patient / Youtuber] (Ep. 13, 15-16)

  Guest Role
• 
  Choi Moo In

  [Na Ra's father] (Ep. 14)

  Guest Role
• 
  Kim Myung Joong

  [Pension owner] (Ep. 14)

  Guest Role
• 
  Eom Ji Man

  [Detective] (Ep. 15)

  Guest Role
• 
  Bae Gi Beom

  Jo Chul Woo [CEO of Sinmyeon construction] (Ep. 15)

  Guest Role
• 
  Lina

  Song Yeo Jin [Woman who fainted in the museum] (Ep. 16)

  Guest Role
• 
  Shin Ki Won

  [Moving company man] (Ep. 16)

  Guest Role
• 
  Song Hoon

  [Boyfriend of Cha Young's mom] (Ep. 16)

  Guest Role
• 
  Im Jae Geun

  [Doctor]

  Guest Role
• 
  Seo Sang Won

  [Resident]

  Guest Role
• 
  Lee Chae Yoon

  [Mud Diner owner ]

  Guest Role
• 
  Lee Eon Jeong

  Jung Soo Hee

  Guest Role
• 
  Lee Su Hyung

  [Driver]

  Guest Role
• 
  Moon Hak Jin Guest Role

Unknown

• 
  Chu Yeon Gyu Unknown
• 
  Jo Yong Joon Unknown