Kwon Sang-woo
Hyeon-su
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
Noh Jong-yun
Producer
Kim Jun-seok
Original Music Composer
Choi Hyeon-gi
Cinematography
Kim Ki-chul
Production Design
Tcha Sung-jai
Executive Producer
Pil Gam-seong
Assistant Editor
Kim Kyung-tae
Production Sound Mixer
Yoo Ha
Director
Yoo Ha
Screenplay
Kim Byeong-gi
Special Effects Supervisor
Park Gok-ji
Editor
Kim Seo-young
Makeup & Hair
Lee In-gyu
Sound Designer
Sin Jae-myeong
Fight Choreographer