
2019
16 Episodes
60 min
| Ep 1 | Ep 2 | Ep 3 | Ep 4 | Ep 5 | Ep 6 | Ep 7 | Ep 8 | Ep 9 | Ep 10 | Ep 11 | Ep 12 | Ep 13 | Ep 14 | Ep 15 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S1 | 9.0 | 8.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 | 8.0 | 9.0 | 9.0 | 9.0 | 9.0 | 9.0 |

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

Yun Ju-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)

Lim Dong-jin
Shim Joon Chul

Go Yong-hwa
Lee Ki Suk's mother

Lee Yo-seong
Cha Yo Han's father

Park Si-wan
Cha Yo Han (child)
Cha Yo-Han—an arrogant but genius doctor of anesthesiology—and Kang Shi-Young—a smart, warm resident of anesthesiology—work together to help people with mysterious cases of acute or chronic pain.