Doctor John: Cast
Ji Sung
Cha Yo-Han
Lee Se-young
Kang Shi-Young
Oh Hyun-joong
Kim Won Hee
Lee Kyoo-hyung
Son Seok-Ki
Kim Hye-eun
Tae-Kyung
Shin Dong-mi
Chae Eun-Jung
Jeon No-min
Kang Yi-Soo
Uhm Hyo-seop
Kang Yi-Moon
Oh Seung-hyun
Min Joo-Kyung
Jeong In-gi
Jung-Nam
Hwang Hee
Lee Yoo-jun
Jung Min-ah
Kang Mi-Rae
Chun Young-min
Lee Da-hae
Kwon Hwa-woon
Heo Joon
Son San
Hong Yun Jin
Lee You-mi
Na Kyung Ah
Kim Yeong-hun
Han Myung Oh
Jeong Jae-seong
Kwon Suk
Yoon Joo-Sang
Lee Won Gil
Jung Kyung-soon
Yoo Joon's mother
Park Jin-young
Nurse
Kim Mi-hye
Questioner
Noreen Joyce Guerra
Flight attendant
Moon Hak-jin
Kim Jung Ho [3rd-year Resident Ophthalmology]
Jang Hee-soo
Professor of Anesthesiology and Pain Medicine
Yoon Chan-young
Lee Ki Suk (A CIPA patient)
Oh Yoo-na
Yoo Ri Hye [former actress who suffers from neuroblastoma]
Yoon Joo-Sang
Lee Won Gil [Former Minister of Health and Welfare]
Lim Dong-jin
Shim Joon Chul
고용화
Lee Ki Suk's mother
Lee Yo-seong
Cha Yo Han's father
Jung Ji-hoon
Min Sung [Yoo Ri Hye's son]
Park Si-wan
Cha Yo Han (child)
Kim Seung-hyun
Inmate