Once upon a time in high school
Technique
Casting
Kwon Sang-woo
Hyeon-su
Lee Jung-jin
Woo-shik
Han Ga-in
Eun-ju
Lee Jong-hyuk
Cha Jong-hoon
Park Hyo-joon
Ham Jae-bok
Seo Dong-won
Seong-hun
Kim Dong-young
Young Hyeon-su
Cho Jin-woong
Yasaengma Gang Member
Lee Gyu-ho
Yasaengma Gang Leader
Kim In-kwon
Jiksae
Baek Bong-ki
Cheetah
Ahn Nae-sang
Teacher
Kim Byung-choon
Choi Byeong-sam
Kwon Tae-won
English Teacher
Cheon Ho-jin
Hyeon-su's Father
Lee Hyeon-seok
Hyun-soo's Mother
Jun Sung-ae
Jong-hoon's Mother
Yang Han-seok
P.E. Teacher
Park Soo-young
Politics & Economics Teacher
Kim Bu-seon
Boniface
Lee Jang-woo
Student
Back Joo-hee
Student
Lee Gun-moon
Korean crow-tit's gang
Production
Tcha Sung-jai
producteur exécutif
Noh Jong-yun
producteur