Character Name : Jang-ho

Original Name : 이제훈

Gender : Male

Character Name : Sang-jin

Original Name : 한석규

Gender : Male

Character Name : Sook-hee

Original Name : 강소라

Gender : Female

Character Name : Gang Boss

Original Name : 이재용

Gender : Male

Character Name : Mi-sun

Original Name : 진경

Gender : Female

Character Name : Sang-jin's Alumnus (uncredited)

Original Name : 배성우

Gender : Male

Character Name : Chang-soo

Original Name : 조진웅

Gender : Male

Character Name : Drunken Man (cameo) (uncredited)

Original Name : 김지석

Gender : Male

Character Name : Teacher

Original Name : 이상훈

Gender : Male

Character Name : Delivery Man

Original Name : Yoon Yeong-gyun

Gender : Male

Character Name : Ji-min

Original Name : Yang Han-yeol

Gender : Male

Character Name : Principle Deok-saeng

Original Name : 오달수

Gender : Male

Character Name : Delivery man

Original Name : Yoon Young-kyun

Gender : Male