Dr. Romantic

Han Suk-kyu

Teacher Kim / Bu Yong-ju

Ahn Hyo-seop

Seo U-jin

Kim Hye-soo

Lee Young-jo

Yoo Yeon-seok

Gang Dong-ju

Lee Sung-kyoung

Cha Eun-jae

Seo Hyun-jin

Yun Seo-jeong

Kim Ju-hun

Park Min-guk

Shin Dong-wook

Bae Mun-jeong

Yang Se-jong

Do In-beom

So Joo-yeon

Yoon A-reum

Seo Eun-soo

Oh Yeon-hwa

Yoon Na-moo

Jeong In-su

Jin Kyung

Oh Myeong-sim

Im Won-hee

Jang Gi-tae

Byun Woo-min

Nam Do-il

Kim Min-jae

Park Eun-tak

Jang Hyuk-jin

Song Hyeon-cheol

Lee Kyu-ho

Mr. Gu Hwang-u

Jeong Ji-an

Uhm Hyeon-jeong

Ko Sang-ho

Yang Ho-jun

Yoon Bo-ra

Ju Young-mi

Park Hyo-ju

Shim Hye-jin

Lee Kyung-young

Cha Jin-man

Lee Sin-young

Jang Dong-hwa

Kim Yong-jin

Chief Lee

Lee Hong-nae

Lee Seon-ung

Choi Jin-ho

Do Yun-wan

Kim Bo-jeong

Nurse Uhm

Moon Ah-ram

Nurse at Doldam Hospital

Park Jin-ah

Hyeon Ji-hyeong

Jo Jung-yoon

ER nurse at Doldam Hospital

Seo Hee

Nurse at Doldam Hospital

Seo Dong-won

Lee Ho-cheol

Loan shark

Sung Ryung

Lim Cheol-soo

Loan shark

Im Jae-geun

Paramedic Heo

Seo Yeong

Manager Ju

Park Jong-hwan

Im Hyeon-jun

Lee Min-woong

Ryu Jun-gil

Kim Hong-pa

Yu Wun-young

Jo Ah-ra

Nurse

Shin Dong-hoon

Bodyguard

Jin Ah-rin

Nurse Jeong

Lee Chae-eun

Ji Min-jung

Bae Myeong-jin

Heo Young-gyu, Nurse Nam

Kim Jung-young

Dong-ju's mother, Kang Dong-joo's mother

Lee Ji-ha

Cha Eun-jae's Mother, Eun-jae's mother

Jeong Han-seol

Seong Yun, Jo Sung-yoon

Joo Hyun

Chairman Shin Myung Ho [Former chairman], Shin Myeong-ho

Kim Joong-ki

Cardiothoracic Surgeon

Moon Ji-in

Jo A-ra

Tae In-ho

Moon Tae-ho

Jeong Kang-hee

Anal Patient

Lee Ji-yeon

Nurse Jin

Lee Cheol-min

Ham Seung-ho

Hwang Chan-seong

Young Gyun

Shin Seung-hwan

Webtoon writer

Kang Chan

Park Joo-hyuk

Han Gab-soo

Park Joo-hyuk's father

Park Doo-sik

Boyfriend of the appendicitis patient fertilizer

Yoon Chan-young

Kang Dong-joo (Young)

Park Sung-kwang

a bad customer

Heo An-na

a bad customer

Gu Da-song

Female student

Kim Hye-eun

Shin Hyeong-jeong

Lee Do-yeop

Captain Yoo In-sik

Ha Yoon-kyung

Interviewee Ha Yoon-kyung

Joo Jong-hyuk

Interviewee

Joo Hyun-young

Interviewee

Moon Sang-hoon

Interviewee

Im Sung-jae

Interviewee

Kim Cheol-yun

North Korean Defector

Yoo Yu-jin

Ri Bok-young

Han Ji-an

Kim Kyung-soo

Kim Beom-seok

Ko Eun-ho

Ha Dong-jun

Kang Sung-jin

Kim Byung-hee

Coast Guard

Kim Seong-in

Coast Guard

Ryu Seung-su

Ski Jumping Coach

Kang Myeong-ju

Deceased Person's Mother

Shin Hyeon-yong

Arsonist

Ahn Sang-woo

Professor Park

Shin Yi-Joon

Yoon Seo Jeong [Young]

Lee Hyo-je

Do In Bum [Young]

Lee Yong-i

[Patient's mother]

Ri Min

[Truck driver involved in an accident]

Choi Kyo-sik

Taxi driver

Kim Hye-jun

Jang Hyun-joo

Yu Eun-mi

Ah Rin

Lee Myung-haeng

Choi Kyung Young

Kwon Hyuk-soo

Ryu Woong Il [Minister], Defense Minister Ryu Woong-il

Kim Jun-won

Auditor Choi

Lee Kang-wook

[Drunken driver]

Park Seoung-tae

[Car crash victim]

Kim Nam-jin

Joo Hyuk's mother

Park Young-soo

[Healthcare center employee]

Cha Jung-won

Soo Jung

Kim Min-sang

Oh Sung Jae [Reporter]

Lee Chae-kyung

[Patient's mother]

Kim Ji-eun

[Yoon Wan's secretary]

Lee Jae-woo

Ahn Woo Yeol

Kim Soo-jin

[Patient's wife]

Cho Wan-ki

Dr. Lee

Gyeong Gi-hyeon

[Station employee]

Jung Bo-seog

Bae Moon-jung's Father, [Moon Jung’s father]

Hwang Bo-Kwon

[Station employee]

Nam Jeong-woo

[Geodae Hospital doctor]

Shin Dong-ryeok

Il Joong [Geodae Hospital doctor]

Kim Jong-tae

Professor Oh [CS Specialist]

Seo Jung-hoo

[119 operator]

Gu Bon-jin

[Lieutenant commander]

Seo Myung-chan

[Military officer]

Ahn Su-bin

[TV reporter]

Jung Young-hoon

[Security]

Im Jae Ha

Seo Woo Jin [Young]

Kim Soo-Min

Soo Jin [Patient]

Jin Yong-uk

[Soo Jin's father / Patient]

Kim Ga-young

[Soo Jin's mother]

Kim Dong-hyun

[Violent husband]

Cherish Maningat

[Domestic abused victim]

Kwak Ja-hyung

Lee Jang Shik [Gangster #2]

Lee Seong-woo

[Gangster #3]

Min Sang-woo

[Chest patient]

Kang You-seok

Joon Young [Prisoner]

Kim Jin

Choi Soon-young [Paramedic]

Woo Hyun-ju

[Joon Young's mother]

Hong Seok-yeon

[Violent drunk man]

Jeong Hyun-seok

[Organ transplant doctor]

Ji Hye-won

Seo Se Young [Trainee nurse]

Lee Ji-hae

[Pregnant bus passenger]

Choi Yun-seol

[Bus passenger]

Go Byeong-taek

[Bus passenger with leg injury]

Park Joo-yong

[119 paramedic]

Kim No-jin

Jung Ga Young [Rape victim]

Park Ki-ryung

[Yoon Wan's associate]

Lee Yun-sang

[Yoon Wan's associate]

Park Seong-il

[Police officer in ER]

Jang Ui-don

[Local police officer]

Kang Suk-won

Hyung Joon [Woo Jin's ex colleague]

Cheon So-Ra

[Nurse]

Song Chang-gyu

Song Chang Gyu

Son Sang-yeon

Kang Ik Joon [VIP Patient], Cabo Lightning

Ahn Soo-ho

[Tow yard worker]

Hwang Jae-yeol

Detective Go [Police detective], Detective Go

Kim Seo-won

Lee Dong Woo [Amputee]

Jung Hyeon-jun

[Dong Woo's son]

Kang Hyung-suk

[Ik Joon's brother]

Han Sang-chul

[Hiker]

Lee Young-sil

[Patient's wife]

Park Ga-young

[Nurse]

Yoon Cha-young

Soo Yeon

Jeon Jin-oh

Lee Dae Young [Minister Ryu's bodyguard]

Oh Min-ae

Ko Kyung-sook

Park Ha-joon

Kim Han-wool

Im Young-joon

Jae-hyun's Grandmother's Son

Jo Eun-sol

Jung Byeol

Lee Ji-hyeon

Choi Soon-young's Mother

Oh Ji-hye

Bae Yu-rim's Mother

Ji So-young

Bae Yu-rim

Seong Jeong-seon

Elderly Patient

Jang Nam-yeol

Bus Terminal's Cleaner (Chief Lee's Uncle-in-Law)

Woo Ji-hyeon

Jeon Kyung-soo

Kim Kyun-ha

Choi Seok-gu

Park Ji-hoon

First Lieutenant Kang Bo-seung

Yong-Jin

Blood Transport Vehicle Driver

Lee Bong-joon

Choi Seok-gu's Friend

Jang Young-hyeon

Heo Byung-bae

Cha Solomon

Choi Seok-gu's Friend

Kim Jang-hwan

News Announcer

Lee Jin-hong

Anesthetic Nurse

Lee Ki-seop

Ko Kyung-sook's Aide

Lee Do-guk

Chief Park of Field Control Team

Cho Dong-in

Math Academy Teacher

Cho In-woo

Paramedic Choi Min-kyu

Hwang Soo-min

Reporter Song Hye-jin

Lee Ga-yeon

Seo Joo-young

Ha I-aan

Student with Scraped Leg

Yoo Sung-min

Student Park Jung-min

Hyun Gun-woo

Unconscious Dance Academy Student

Baek Kyung-min

Dance Academy Student

Han Gi-joong

Head of Jongseon

Seo Ah-in

Student Experiencing Dizziness

Go Geon-ryeong

Cardiac Patient

Guk Joong-woong

Patient Guardian who Complain

Byun Joong-hee

Patient with Dementia

Lee Seung-won

Guardian of Patient with Wheelchair

Lee Jang-ho

Paramedic

Jung Woo-jae

Woo Sang-min

Kim Ye-rin

Cha Eun-jae (Young)

Kim Moon-chan

Fighting Patient

Kim Il-hyeon

Doctor

Bae Bo-ram

Doctor

Shin Hye-ji

Patient Min-jung

Kim Jae-man

Vomitting Patient

Hong Seong-gwan

Paramedic

Kwak Jin

Fighting Brother Patient

Kim Da-huin

Officer Choi

Han Kyu-won

Yeom Jung-do

Park Seong-chan

Anesthesiologist

Park Joo-young

Embolism Patient

Park Hui-jeong

Nurse

Kang Hae-ri

Nurse

Lee Joo-young

Nurse

Kim Do-won

Heo Ye-jun

Kim Si-on

Heo Ye-jun's Sister

Lee Han-ju

Angry Patient

Ryu Ye-ri

Jung In-soo's Wife

Ban Hye-young

Reporter

Park Joon-sang

Reporter

Lee Dong-kyu

Anchor

Jeong Hyeon-woo

Electrician

Yoon Kwan-woo

Detective

Jeong Ae-hwa

Villa resident

Choi Sol-hee

Villa resident

Min Woo-gi

Patient

Jeong Doo-won

Cramps patient's husband

Han Ki-jang

Firefighter

Kim Do-hyeong

Cha Jin Man's chauffeur

Oh Min-jeong

Tteokbokki restaurant owner