Park Joong-hoon as Oh Dong-cheol

Jung Yu-mi as Han Se-jin

Park Won-sang as Jeong-seo

Jeong Woo-hyuk as Boss Kim

Jeong In-gi as Ex-detective Park

Kwon Yul as Jae-young

Min Kyung-jin as Se-jin's Father

Yang Eun-yong as Doctor

No Seung-beom as Bong-soo

Yoon Ga-hyun as Woman Looking for House

Choi Won-tae as Schoolboy 1

Choi Gwi-hwa as Gang Member 1

Lee Chae-eun as Nurse 1

Oh Seong-soo as Gyeong-jun

Yang Geun-seok as New Employee

Lee Jun-hyeok as Final Interviewer