Character Name : Do-chul

Original Name : 정우성

Gender : Male

Character Name : Hong-ki

Original Name : 이정재

Gender : Male

Character Name : Byeong-guk

Original Name : 이범수

Gender : Male

Character Name : Mimi

Original Name : 한고은

Gender : Female

Character Name : Seong-hoon

Original Name : Park Ji-hoon

Gender : Male

Character Name : Mr. Moon

Original Name : 이기열

Gender : Male

Character Name : Hong-ki's Mother

Original Name : Han Sang-mi

Gender : Male

Character Name : Byeong-guk's Man

Original Name : 박성웅

Gender : Male

Character Name : Boxing Trainer (uncredited)

Original Name : 김영호

Gender : Male

Character Name : Man (uncredited)

Original Name : 권태원

Gender : Male

Character Name : Lender (uncredited)

Original Name : Lee Bong-gyu

Gender : Male