Jang Keun-suk

Han Joon-soo

Song Ha-yoon

Kim Byul

Moon Mason

Han Woo-ram

Ko Kyu-pil

Ki-seok

Choi Jae-hwan

Chun-sung

Kim Byeong-ok

Joon-soo's father

Park Hyun-suk

Joon-soo's mother

Jeong Gyu-su

Byeol's father

Jang Jung-hee

Byeol's mother

Kim Jung-nan

Tyson

Kim Yang-woo

Mad dog

Kil Hae-yeon

Ki-seok's mother

Lee Moon-sik

Subway Attendant

Oh Kwang-rok

Gwang-rok

Jeon Se-hyun

Joon-soo's Ex

Jeong Min-sung

Drunk Man

Kim Gu-ra

Room Salon Customer

Lee Cheol-min

Police Officer

Park Myung-soo

Woo-ram (voice)

Song Min-hyung

Teacher

Yoo Ji-yeon

Room Salon Girl

Kim Dong-seok

Doctor

Kim Jin-young

Director

Kim Jin-young

Writer

Lee Sung-min

Writer

Lee Geun-woo

Grip

Lee Sung-jin

Sound Supervisor

Lee Chul-ho

Production Design

Kim Sang-yun

Co-Executive Producer

Moon In-dae

Editor

Yoon Gun

Music

Jung Jin-ho

Director of Photography

Eom Gwang-won

Lighting Director

Jung Hyun-su

Production Sound Mixer

Jang Dae-seong

Original Music Composer