Character Name : Jun-oh

Original Name : 황정민

Gender : Male

Character Name : Chung-bae

Original Name : 강신일

Gender : Male

Character Name : Yi-hwa

Original Name : 유선

Gender : Female

Character Name : Ma Yong-Sik

Original Name : 유승목

Gender : Male

Character Name : Jang Mi-na

Original Name : 김서형

Gender : Female

Character Name : Section Chief Nam

Original Name : 김정팔

Gender : Male

Character Name : Detective Oh

Original Name : 정인기

Gender : Male

Character Name : Detective Kim

Original Name : Lee Kyung-Hoon

Gender : Male

Character Name : Vice Principal

Original Name : 이주실

Gender : Female

Character Name : Scarred Man

Original Name : Son Ho-seung

Gender : Male

Character Name : Nylon Patient

Original Name : Kim Do-yoon

Gender : Male

Character Name : Nylon Patient

Original Name : Hwang Choon-ha

Gender : Male

Character Name : Nylon Patient (uncredited)

Original Name : Son Byeong-uk

Gender : Male

Character Name : Chul Yun

Original Name : 문가영

Gender : Female