Jin-seok

Kang Ha-neul

Yoo-seok / Choi Seong-uk

Kim Moo-yul

Yoo-seok

Kim Moo-yeol

Yoo-seok

Kim Mu-yeol

Arresting Detective 2

Lee Dong-jin

Jin-seok's Father / Mr. Park

Moon Sung-keun

Father

Moon Seong-geun

Jin-seok's Father / Madam Min

Na Young-hee

Professor Choi

Nam Myung-ryul

Professor Choi

Nam Myung-ryeol

Professor Choi's Wife

Lee Na-ra

High School Yoo-seok

Jeong Taek-hyeon

Questioned Man #1

Bae Seong-il

Girl

Jung Chan-bi

Young Yoo-seok

Choi Go

Questioned Man #2

Lee Soon-won

Questioned Man #3

Byeon Dong-joon

Father

Kang Sin-goo

Jin-seok's Real Father / Precinct Policeman 4

Kang Sin-gu

Jin-seok's Real Mother

An Min-young

Older Brother

Park Jae-yeong

Mover

Park Chae-ik

Precinct Policeman #1

Kwon Jae-hwan

Precinct Policeman 2

Moon Seong-pil

Precinct Policeman 3

Eom In-woo

President Song

Oh Hyeon-soo

Employment Agency Director

Park Kyung-chan

First-aid

Lee Dong-geun

Emergency Room Nurse #1

Han Tae-eun

Emergency Room Nurse #2

Ahn Yoo-jin

Hallway Nurse

Jo Han-na

Hospital Room Nurse

Han Da-eun

Arresting Detective #1

Lee Sung-woo

Hallway Nurse

Cho Han-na

Police Precinct Student #1

Yeon Je-hyung

Police Precinct Student #2

Kim Hyeon-mok

Police Precinct Student #3

Yoo In-soo

Drunk

Kim Hyeon-chang

Loan Shark #1

Kang Hak-soo

Loan Shark #3

Jo Hong-woo

Questioning Detective

Im Jeong-min

Driver in Accident

Lee Seung-yong

young Yoo-seok

Chung Taek-hyun

Questioning Detective

Lim Jung-min

Real Estate Agent

Oh Min-jeong

Neighborhood Auntie

Jeong Mi-kyeong

Criminal Investigator 1

Jeon Sang-jin

Criminal Investigator 2

Kim Joo-hwang

Psychiatrist

Ma Jeong-pil