황정민
Jun-oh
강신일
Chung-bae
유선
Yi-hwa
유승목
Ma Yong-Sik
김서형
Jang Mi-na
김중팔
Section Chief Nam
정인기
Detective Oh
이주실
Vice Principal
문가영
Chul Yun
Lee Kyung-Hoon
Detective Kim
Son Ho-seung
Scarred Man
Kim Do-yoon
Nylon Patient
Hwang Choon-ha
Nylon Patient
Son Byeong-uk
Nylon Patient (uncredited)