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Lee Ik-jun
24 episodes
Ahn Jeong-won
Kim Jun-wan
Yang Seok-hyeong
Chae Song-hwa
Jang Gyeo-ul
Chu Min-ha
Lee Ik-sun
Lee U-ju
Jeong Rosa
Do Jae-hak
Myeong Eun-won
Heo Sun-bin
Choi Seong-yeong
Yong Seok-min
Bong Kwang-hyeon
Song Su-bin
Jang Hong-do
Im Chang-min
Jang Yun-bok
Jo Young-hye
Ju Jeon
Ju Jong-su
Sunwoo Hui-su
Hwang Jae-shin
Min Ki-jun
Jong Se-hyeok
Eun Seon-jin
Han Seung-ju
So Yi-hyun
Han Hyun-hee
Ham Deok-ju
Kim Jae-hwan
Lee Young-ha
Cheon Myeong-tae
Guk Hae-sung
Kwon Sun-jeong
Lee Ji-hun
Ahn Chi-hong
13 episodes
Auntie Wang
12 episodes
Bae Jun-hee
Yoon Shin-hye
Hwang Bae-jin
Kang So-ye
Kim Da-young
Yoon Ga-hee
Nam Yoo-ri
Hwang Ji-woo
Choi Se-hoon
Kim Geon
Shin-hye's mother
Seo Yoon-hee
Kim Tae-yeon
Chief neurosurgeon
Yang Tae-yang
Pregnant Wife
7 episodes
Pregnant Wife's Husband
Hwang Du-na
6 episodes
Colorectal Surgeon
4 episodes
Eun-ji's Mother
Hyo-ju
Jang Ga-eul
3 episodes
Peter
Hwang Min-jung
Ok Gang-nam, Doctor
Jang Jong-gil
Jong-gil's Son
Jong-gil's Wife
Sim Mi-jin
Song-hwa's ex-boyfriend
2 episodes
Jae-hun's Father
Go A-ra
Surgical Ward Nurse
Ji-a's Father
Ji-a's Mother
Mr. Jung
Kim Hyeon-su
Min-ha's Mother
So-mi
Dong-ju
Lee Chang-hak
Chang-hak's Wife
Kim Soo-jung
Soo-jung's Husband
Yoo Gyung-jin
Gyung-jin's Mother
Patient's Daughter (Voice) (Eps 8), Seok-hyeong's Patient (Eps 8)
Lee Gyung-mi
Min-chan's Father
Min-ha's Father, Chu Cheol-woo
Du-na's Mother
Pediatrician
Sun Du-ho
Sun Seong-hui
Jang Young-seok
Dong-hyeon's Guardian, Patient's Guardian
Du-ho's Wife
Baby Jae-won's Mother
1 episode
Seung-chae
PD Song
Brain Cancer Patient
Electrician
Nurse
Ju-hwan's Mother
Bit-na's Mother
Eun-ah's Mother
Patient's Relative
Min-young's Mother
Jeong-won's Eldest Sister
Jeong-won's Second Eldest Sister
Jeong-won's Second Eldest Brother
KWMC Resident
Gal Ba-ram
Park Jeong-su
Noh Jin-hyeok
Han Seung-hyeok
Gong Hyeong-woo
Doctor
Upset Patient
Patient
Patient's Son
Heart Patient
Neurosurgeon
Jung-hu's Mother
Ba-ram's Husband
Patient's Daughter
Jeong-su's Guardian
Sung-hyuk's Mother
Patient Next to Ba-ram
Won-jun
Dr. Tae-in
Jeong Ho-jun
Jeong Su-beom
Jeong Eun-bin
Yuk Hye-jeong
Yuk Hui-gwan
Hui-dong
Hui-gwan's Wife
Chan-hyeong's Mother
Chan-hyeong's Grandmother
Jae-hun / Jae-yong
Priest
Middle-age Female Staff
Teen Girl
Teen Girl's Mother
Sim Yeong-ho
Mother in Labor
Foreign Patient's Co-worker
Yeong-ji's Mother
Cervix Patient's Husband
Waitress
Su-beom's Wife
Heart Procurement Team 2
Chang-mo's Mother
Marathon Announcer (voice)
Ji-hyun's Grandpa
Paramedic
Oh Jae-il
Jang-hun's Wife
Son of Patient
Kim Jae-yeong
Bin
Go Yeong-min
Detective
Social Worker
Tae-jin's Father
Geon-hui's Father
Geon-hui's Mother
Jae-yeong's Husband
Thoracic Surgery Doctor
Shin Mi-jin
Worried Mother of Patient
Shop Owner's Wife
Phoenix Shop Owner
Chang-mo's Father
Jo Moon-jung
Choe Jung-won
Jung-won's Wife
Pediatric Surgery Nurse
Visitor
Patient Next to Painkiller Patient
Jae-young's Husband
Jung-won's Daughter
Shin Mo-rin
Yu-min's Father
Tae-hui's Father
Tae-hui's Mother
Aneurysm Patient
Yun-bok's Boyfriend
Neuropatient
Aneurysm Patient's Dad
Aneurysm Patient's Mom
Yeong-ji
Kim Hae-beom
Hong Jeong-ho
Interpreter
Yeong-ji’s Nurse
Hae-beom's Aunt
Nurse (Eps 11)
Im Jang-hun
Chang-hak's Father
Chang-hak's Mother
Chang-hak's Brother
Baby Chae-yun's Father
Baby Chae-yun's Mother
Child Patient in Elevator
Chang-hak's Sister-in-law
Stillbirth Mother
Ko Jung-min
Ji-hyun
Han Seung-hui
Attorney
Ji-hyun's Father
Ji-hyun's Mother
Cirrhosis Patient
Jung-min's Father
Cha Mi-kyung
Astrocytoma Patient
Cirrhosis Patient's Wife
Cirrhosis Patient's Mother
Neurosurgery Patient
Brain Hemorrhage Patient's Daughter
Astrocytoma Patient's Wife
Yeom Se-hee
Stroke Patient
Chae-eun's Mother
Yeon-woo's Mother
Kim U-jae
Kim Jang-ho
Park Seung-won
Seung-won's Mother
Seung-won's Father
Gyung-jin's Father
Restaurant Waitress
Ha-yul
Cho Seon-ho
Yoo Han-yang
Son Chan-gyu
Kim Hyeong-jin
Baek Hyeong-do (voice)
Assemblyman
Ha-yul's Mother
Oncologist Surgeon
Heart Patient's Wife
Assemblyman's Aide
Ye-rim's Mother-in-law
Impatient Heart Patient
Impatient Heart Patient's Husband
Recovered Cancer Patient
Recovered Cancer Patient's Son
Ba-da
So-yeon
Fellow
Ba-da's Mother
Chae-eun
Jong-seop's Son
Physical Therapist
ASD patient
Seizure Woman
Ga-ram's Mother
Bile Duct Patient
Son of Seok-hyeong's Patient
Boy Patient's Mother
Transfer PPH Patient's Husband
Chang-min's Mother
Se-ho
Ba-da's Father
Eun-ji's Father
Ru-bin's Father
Patient from Jinhae
Husband from Jinhae
Choi Eun-seok
Eun-seok's Husband
Kim So-young
Cafe Cashier
Patient's Wife
Du-na's Father
Ik-jun's Professor
So-young's Mother
Chang-min's Father
So-young's Husband
So-young's Mother-in-law
Han Jun
An Seong-ju
Jun's Mother
Seong-ju's Father
Seong-ju's Mother
Seong-ju's Brother
Security Guard
Preterm Baby's Mother
Ik-jun's Patient
Song-hwa's Mother (voice)
Seok-hyeong's Patient
Brain Tumor Patient
Transfer PPH Patient
Brain Tumor Patient's Son
Brain Tumor Patient's Daughter
Ko Ju-hyeong
Shin Sung-eui
Min-sol's Mom
Pregnant Nurse
OB-GYN Fellow
Table Tennis Umpire
Dr. Shin's Teammate
Orthopedics Team Doctor
Nuclear Medicine Professor
Kang Chan-dong
Intern
Pediatrics Doctor
Chan-dong's Friend
Ki Eun-mi
An Sang-mo
Sang-mo's Son
Sang-mo's Wife
Ho-jung's Sister
Ho-jung's Mother
Sun Chun-sik's Family Member
Bae Jong-seop
Choi Eun-dam
Pediatrics Fellow
Seo-joo's Husband
Bae Jong-sup's Wife
Seung-chae's Mother
Bae Jong-sup's Mother
Brain Hemorrhage Patient's Son
ASD Patient's Daughter
Ju-hyeong's Wife
Sim Yeong-su
Jae-min
Ye-rim's Husband
Kang Seo-ju
Lee Won-u's guardian
Baby Hun's mother
Radio DJ (voice)
Sang-u
Foreign Currency Patient
Bolgogi Grandma
Bolgogi Grandpa
Jade Belle Cashier
Hungry Pregnant Patient
Do Jae-yeong
Oh Yu-min
Baby Patient's Mother
Kim Tae-hui
Ji-won
Restaurant Staff
Pregnant Woman's Husband
Choi Ji-eun
Seung-hui's Husband
Si-on's father
Delivery Room Nurse
Kim Ha-eun
Si-on's Mother
Ga-ram's Father
Brain hemorrhage patient
