Son Byung-wook

as Doo-soo

as Dean of Students

as Demolition Captain

as Agent

as Seok-bong

as Young-shik

as Hyung-bae's Gangster

as Juwol's Homeroom Teacher

as Servant

as Kim Do-soo

as Nylon Patient (uncredited)

as Yellow Hair

as Tae-son

as Kang-goo

as Park Sung-min

as Detective Kim

as Factory Gangster 3

as Locksmith

as Police Executive

as Detective