All Cast
Lee Je-hoon
Jang-ho
Han Suk-kyu
Sang-jin
Kang So-ra
Sook-hee
Lee Jae-yong
Gang Boss
Jin Kyung
Mi-sun
Bae Sung-woo
Sang-jin's Alumnus (uncredited)
Cho Jin-woong
Chang-soo
Kim Ji-seok
Drunken Man (cameo) (uncredited)
Lee Sang-hun
Teacher
Yoon Yeong-gyun
Delivery Man
Yang Han-yeol
Ji-min
Oh Dal-su
Principle Deok-saeng
