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