Pemeran Heart Surgeons

Go Soo (고수)

as Park Tae Soo

Pemeran Utama

Uhm Ki Joon

as Choi Seok Han

Pemeran Utama

Seo Ji Hye (서지혜)

as Yoon Soo Yeon

Pemeran Utama

Choi Dae Hoon (최대훈)

as Koo Dong Joon [Doctor - Thoracic Surgery Dept]

Pemeran Pembantu

Nam Kyung Eup

as Yoon Hyeon Mok [Soo Yeon's father]

Pemeran Pembantu

Jang So Yeon

as Kang Eun Sook [Nurse]

Pemeran Pembantu

Kim Ye Won (김예원)

as Ahn Ji Na [Fellow doctor in chest department]

Pemeran Pembantu

Oh Dong Min

as Moon Seung Jae [Doctor]

Pemeran Pembantu

Jeong Bo Seok

as Yoon Hyun Il [Soo Yun's uncle]

Pemeran Pembantu

Ahn Nae Sang

as Koo Hee Dong [Dong Joon's father]

Pemeran Pembantu

Lee Jae Won

as Nam Woo Jin [Tae Soo's friend]

Pemeran Pembantu

Cha Soon Bae

as Lee Joong Do

Pemeran Pembantu

Son Kwang Eop

as Son Jae Myung

Pemeran Pembantu

Jo Jae Yun (조재윤)

as Hwang Jin Cheol [Tae Su's former colleague]

Pemeran Pembantu

Jung Yoo Min

as Bae Yoo Ri

Pemeran Pembantu

Jung Hyun Seok

as Yoo Se Hwan

Pemeran Pembantu

Nam Tae Boo

as Lee Mi Ran

Pemeran Pembantu

Lee Deok Hee

as Oh Jeong Ae

Pemeran Pembantu

Park Kyung Hye

as Lee Sun Yeong [Nurse in ICU]

Pemeran Pembantu

Jung Hee Tae

as Professor Lee [Anesthesiologist]

Pemeran Pembantu

Woo Hyun

as Han Sang Ok [Doctor]

Pemeran Pembantu

Jung Dong Gyu

as Han Min Sik

Pemeran Pembantu

Jo Jae Ryong

as Hwang Jin Chul [Orthopedic surgeon]

Pemeran Pembantu

Yang Hyun Tae

as Nam Dong Chang

Pemeran Pembantu

Hong Seo Joon

as [ER head chief department]

Pemeran Pembantu

Kang Seo Ha

as Lee Ye Rin

Pemeran Pembantu

Ju Min Chan

as [Orthopedic medical resident]

Pemeran Pembantu

Park Yoo Mil

as Lee Eun Sung

Pemeran Pembantu

Park Ye Chan

as Oh Won Joon

Pemeran Pembantu

Hong Ru Hyeon

as Jung Ji Won

Pemeran Pembantu

Sim Yi Young

as [Seok Han's wife]

Bintang Tamu

Kim Min Seok (김민석)

as [Doctor] (Ep. 32)

Bintang Tamu

Yang Joo Ho

as [Kim Sung Hee's guardian] (Ep.3/4)

Bintang Tamu

Han Hye Ji

as Kim Sung Hee (Ep. 3-4)

Bintang Tamu

Yang Ye Na

as Eun Ji (Ep. 3/4)

Bintang Tamu

Kim Gwang In

as [Doctor on plane] (ep. 4)

Bintang Tamu

Woo Sang Jun

as [Monk]

Bintang Tamu

Kim Joo Ah

as [Patient's wife]

Bintang Tamu

Jung Kang Hee

as Park Do Chang [Shaman]

Bintang Tamu

Shin Rin Ah

as Lee Yoon Seo (Ep. 29-31)

Bintang Tamu

Lee Si Young

as Lee Yoon Seo's mother (Ep. 29-31)

Bintang Tamu

Lee Soo Ah

Bintang Tamu

Kim Chae Hyun

as [Patient's mother]

Bintang Tamu

Ban Hye Young

as [Fellow Intern of Yoon Soo Yeon and Ahn Ji Na]

Bintang Tamu

Song Chang Gyu

as [Hardware store owner]

Bintang Tamu

Choi Yoon Woo

as [Playground boy]

Bintang Tamu

Shin Hee Gook

Bintang Tamu

Nam Jung Woo

Bintang Tamu

Cherish Maningat

as [Thai mother]

Bintang Tamu

Seo Yoon Ha

Bintang Tamu

Jung Chan Bi

as Yoon Soo Yeon [Young]

Bintang Tamu

Richard Kim

as [Cardiology Patient]

Bintang Tamu

Kang Jin Ah

as [ER nurse]

Bintang Tamu

Jeon Soo Yeon

as [Nurse]

Bintang Tamu

Song Da Kyung

as [Nurse]

Bintang Tamu

Chae Yoo Ri

as Yoo Bin

Bintang Tamu

Choi Kwon Soo

as Park Tae Soo [Young]

Bintang Tamu

Kim Si Woo

as Hyun Woo

Bintang Tamu

Choi Yun Woo

as Kim Kyung Ah

Bintang Tamu

Joo Min Jun

Bintang Tamu

Park Se Jun

Composer

Jo Young Kwang

Sutradara

Jung Dong Yoon

Sutradara

Choi Su Jin

Screenwriter

Choi Chang Hwan

Screenwriter

Lee Yoo Jung

Bit part