Sunflower

Director

• 
  Lee Jin Suk

Screenwriter

• 
  In Jung Ok

Main Role

• 
  Ahn Jae Wook

  Dr. Jang Hyun Woo

  Main Role
• 
  Kim Hee Sun

  Dr. Han Soo Yun

  Main Role
• 
  Han Jae Suk

  Dr. Kwon In Chan

  Main Role
• 
  Chu Sang Mi

  Dr. Choi Ha Kyung

  Main Role
• 
  Nam Sung Jin

  Dr. Ha Jun Seo

  Main Role

Support Role

• 
  Cha Tae Hyun

  Dr. Heo Jae Bong

  Support Role
• 
  Kim Jung Eun

  Moon Soon Young

  Support Role
• 
  Jung Joon Ho

  Moon Soo Nam [Soon Young's brother]

  Support Role
• 
  Ahn Jung Hoon

  Dr. Ko Sang Do [Chief neurology resident]

  Support Role
• 
  Choi Kang Hee

  Lee Eun Joo [Ward nurse]

  Support Role
• 
  Kyung In Sun

  Park Soon Deok [Ward nurse]

  Support Role
• 
  Jun In Taek

  Jang Hyun Jun [Hyun Woo's brother]

  Support Role
• 
  Park Soon Chun

  Kim Eun Jeong [Hyun Woo's sister-in-law]

  Support Role
• 
  Jo Kyung Hwan

  Dr. Suh Nam Joon

  Support Role
• 
  Kim Ji Yun

  Park Sang Hee [Chief resident]

  Support Role
• 
  Park Young Ji

  Kim Jang Seong

  Support Role
• 
  Choi Joon Yong

  [Orthopedic resident]

  Support Role
• 
  Kim Seung Soo

  [Resident]

  Support Role
• 
  Shim Yang Hong

  [Hospital director]

  Support Role
• 
  Yoon Soon Hong

  [Anesthesiologist]

  Support Role
• 
  Lee Young Bum

  [Psychiatrist]

  Support Role
• 
  Park Kwang Jung

  [Diagnostic radiologist]

  Support Role

Guest Role

• 
  Joo Min Jun

  [Junior resident doctor to Dr. Han Soo Yun] (Ep. 16)

  Guest Role
• 
  Kim Gi Hyeon

  Yoon Jae Ho

  Guest Role
• 
  Jo Mi Ryung

  Seong Eun Mi

  Guest Role
• 
  Yoo Hyun Ji

  Ha Jong Mi [Child neurosurgery patient]

  Guest Role
• 
  Lee Keun Hee

  Yoon Tae Dong

  Guest Role
• 
  Yoon Moon Shik

  [Jae Bong's father]

  Guest Role
• 
  Kim Ji Yeong

  [Jae Bong's mother]

  Guest Role
• 
  Lee Jin Woo

  [Eun Mi's husband]

  Guest Role
• 
  Lee Tae Ri

  [Soon Deok's son / Neurosurgery nurse]

  Guest Role
• 
  Yoon Ji Hyeon

  [Soo Yeon's half-brother]

  Guest Role
• 
  Han In Soo

  [Soo Yeon's father]

  Guest Role
• 
  Song Il Gook

  [Guardian of a patient] (Ep.15)

  Guest Role
• 
  Hong Seok Cheon

  [Wig shop owner]

  Guest Role
• 
  Kwon Yeon Woo

  [Nurse]

  Guest Role
• 
  Hong Soon Chang

  [Neurosurgical patient]

  Guest Role
• 
  Lee Hyo Jung

  [Prosecutor]

  Guest Role
• 
  Park Chul

  [Psychiatric patient]

  Guest Role
• 
  Kim Hye Jung

  [Mother of a neurosurgery patient]

  Guest Role
• 
  Go Yong Hwa Guest Role
• 
  Kim Hyung Il Guest Role
• 
  Yoon Ye Ri Guest Role
• 
  Kim Yong Hee Guest Role
• 
  Jeon Noh Min Guest Role
• 
  Ham Shin Young Guest Role
• 
  Hong Eun Hee Guest Role
• 
  Lee Seung Ah Guest Role
• 
  Lee Hyun Kyung Guest Role
• 
  Shin Gui Sik Guest Role
• 
  Yoo Seo Jin Guest Role
• 
  Jung Gi Sung Guest Role
• 
  Kim Se Ah Guest Role
• 
  Seo Kap Sook Guest Role
• 
  Ko Dong Hyoung Guest Role
• 
  Kim Ho Young Guest Role
• 
  Yoon Jeong Hee Guest Role
• 
  Park Yoon Bae Guest Role
• 
  Lee Won Jae Guest Role
• 
  Jo Hyung Ki Guest Role
• 
  Choi Woo Hyeok Guest Role
• 
  Seo Beom Shik Guest Role
• 
  Ahn Hae Sook Guest Role
• 
  Cha Ki Hwan Guest Role
• 
  Yoon Hyun Gil Guest Role

Unknown

• 
  Gu Min Ji Unknown
• 
  Song Seung Yong Unknown
• 
  Ko Dong Hyeon Unknown