Lee Je-hoon
Jang-ho
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
Jeon Gun-ik
Special Effects Supervisor
Yoon Jong-chan
Director
Kim Man-geun
Assistant Editor
Jeon Jae-hyeong
Stunts
Shin Jae-ho
Special Effects Makeup Artist
Kwon Tae-ho
Stunts
Choi Bong-rock
Stunts
Jeong Jin-geun
Stunts
Lee Seu-ra
Storyboard
Jung Jin-wook
Production Sound Mixer
Choi Wun-jin
Key Grip
Kim Mi-mi
Boom Operator
Eo Jeong-il
Assistant Director
Lee Seok-won
Producer
Lee Seung-chul
Sound Supervisor
Han Myung-hwan
Sound Mixer
Yoo Young-a
Writer
Lee Chang-jae
Director of Photography
Lee Jae-hak
Original Music Composer
Park Min-hui
Makeup & Hair
Bang Chu-Seong
Producer
Jang Joo-hee
Costume Design
Yang Hong-sam
Production Design
Steve M. Choe
Editor
Han Mi-yeon
Assistant Editor
Lee Sang-hoon
Original Music Composer