정우성
Do-chul
Lee Jung-jae
Hong-ki
이범수
Byeong-guk
한고은
Mimi
Park Ji-hoon
Seong-hoon
이기열
Mr. Moon
박성웅
Byeong-guk's Man
김영호
Boxing Trainer (uncredited)
권태원
Man (uncredited)
Lee Bong-gyu
Lender (uncredited)
Han Sang-mi
Hong-ki's Mother
