Jang Hyuk

as Bang Ui-kang

Lee Seo-young

as Kim Yoon-ji

Bang Eun-jeong

as Sung-yeon

Bruce Khan

as Yuri

Lee Seung-joon

as Detective Lee

Yoo Seo-jin

as Divorced Woman

Shin Seung-hwan

as Park Hyung-joo

Hong Seo-jun

as Kim Jung-hoon

Lee Chae-young

as Hyun-soo

Choi Ki-seob

as "Birthmark"

Cha Tae-hyun

as Cleaning Head

Son Hyun-joo

as Shooting Range Owner

Park Hyung-jun

as Hallway Man 1

Park Young-woon

as Hallway Man 2

Kim Hae-woong

as Hallway Man 3

Jeong Ho-gyun

as Corridor Man 5