Real

Kim Soo-hyun

Jang Tae-yeong

Sung Dong-il

Jo Won-geun

Lee Sung-min

Choi Jin-gi

Sulli

Song Yoo-hwa

Jo Woo-jin

Sa Do-jin

Kim Hong-pa

Choi Nak-hyeon

Jeong In-kyeom

Professor Kim

Choi Kwon

Manager Baek

Ko Kyu-pil

Bald man

Han Ji-eun

Han Ye-won

Jung Yi-seo

Addict

Lee Jung-hyun

Gangster in Chinatown

Son Hyun-joo

Patient

Park Seo-jun

Bodyguard

Kim Da-som

Therapist