리얼

Kim Soo-hyun

Jang Tae-yeong

성동일

Jo Won-geun

Lee Seong-min

Choi Jin-gi

설리

Song Yoo-hwa

조우진

Sa Do-jin

김홍파

Choi Nak-hyeon

정인겸

Professor Kim

최권

Manager Baek

고규필

Bald man

한지은

Han Ye-won

정이서

Addict

이정현

Gangster in Chinatown

손현주

Patient

박서준

Bodyguard

김다솜

Therapist

An So-hee

Restaurant Waitress

수지

Song Yoo-hwa's best friend

경리

Waitress

Park Min-ha

Waitress

Ah Ri

Brothel Men-Women