Jang Yoo-sang

as Korean Teacher

as Jun-su

as Joo-yeon

as Kijoon

as Choi Do-Yoon (16 episodes)

as Young-in

as Young-in (1 episode)

as Im Se-chan (32 episodes)

as Choi Ho-Dol (4 episodes)

as Byun Shi Woo

as Kim Yi-soo (16 episodes)

as Im Sang-Jin (16 episodes)

as Kim Yi-Kyung (16 episodes)

as Seung Jong (2 episodes)

as Young Seok

as Byeo-chan

as Lee-seob

as Meok-shoi

as Nam Gong Dae (6 episodes)

as Ji Gwang-soo (16 episodes)

as Min-jae

as Hoon (segment "Night Bugs")

as Hoon

as Yoon Dae-beom (1 episode)