이제훈
Jang-ho
한석규
Sang-jin
강소라
Sook-hee
이재용
Gang Boss
진경
Mi-sun
배성우
Sang-jin's Alumnus (uncredited)
조진웅
Chang-soo
김지석
Drunken Man (cameo) (uncredited)
이상훈
Teacher
Yang Han-yeol
Ji-min
Oh Dal-su
Principle Deok-saeng
Yoon Yeong-gyun
Delivery Man
