Jo Han-sun

as Im Moon-gi

as 선생님 (11 episodes)

as Bale (16 episodes)

as Seon-du

as 송의찬

as In Ho-Cheol (8 episodes)

as Sun-ki

as Sun Yang-Woo (16 episodes)

as Joo Do-Sik

as Tae-ju

as Ho-bin

as Yoo Se-Hyun (54 episodes)

as President Kim

as Joon-Sik

as Sang-geun

as Un-cheol

as Kim Jung-tae (20 episodes)

as Ahn Kwang-mo (40 episodes)

as Jung Tae-min

as Jeong Seok-young (1 episode)

as High Kick