Doom at Your Service

Park Bo-young

Tak Dong-kyung

Seo In-guk

Myul Mang / Kim Sa-ram

이수혁

Cha Joo-ik

강태오

Lee Hyun-gyu

신도현

Na Ji-na

Dawon

Tak Seon Kyung

Woo Hee-jin

Kang Soo-ja

정지소

So Nyeo-shin

Lee Seung-joon

Jung Seung-jun / Jeong Dang-myeong

Park Tae-in

Park Jung-min

송주희

Jo Ye-ji

Choi So-yoon

Kim Da-in

Song Jin-woo

Park Chang-sin

남다름

Park Young / Young Prince

Daniel C. Kennedy

Kevin

Lee Ye-seo

Tak Dong-kyung [Young]

Heo Jae-ho

"Jijo King"

오연아

"Dalgona"

Hong In

Stabbing suspect

박재준

Tak Seon-kyung [Young]

유하복

Joo Ik's father

이재은

Patient

한예리

patient

김지석

Jo Dae-han

Kim Baek-ri

Dae Han's wife

Moon Chang-Wan

Tak Jong-won

최교식

Dong Kyung's relative

엄옥란

Dong Kyung's relative

김지수

Nurse

Lee Ja-ryeong

Doomsday pamphlet woman

Lee Young-joo

Dong Kyung's relative

이재은

patient

Kwon Soo-hyun

Dong Kyung's blind date

Shin Soo-Hyun

Nurse

Lee Dong-kyu

YBN announcer

Kim Hyo Myung

Subway pervert

Ryu Yeon-seok

Photographer

Oh Nan-Ju

Shaman

윤태수

Restaurant waiter

손우현

"Siberia"

Min Young

Doctor

윤복성

Judge

Uhm Ja-yoon

Prison officer

임용순

Wedding celebration man

Yoo Sung-yeol

Alumnus

Jang Young-hyeon

Alumnus

박상현

Toshino Publishing staff

Je Seung-hyun

Employee

Kim Sang-wook

Teacher

Park Bo Eun

Shoes saleswoman

Seon Ah Rin

Handbag customer

Park Seung-jun

Graduating student

이영희

Student's grandmother

이황의

Random guy talking to Myul Mang about flowers

이시영

Medical receptionist

Shin Mun-sung

Arsonist

조완기

Murderer

최문경

Hair stylist

Jeon Ah-hee

Pregnant patient

Kang Jung-yun

Hospital lobby woman