Lee Chun-hee

as Self (10 episodes)

as Sung Si-hoon (10 episodes)

as Self

as Self (10 episodes)

as Park Geun-tae (16 episodes)

as Man-sik

as Lee Cheol-i

as Kim Sung-ho

as Song Min Ho (48 episodes)

as Cha In-Tae

as Kim Joo Won (3 episodes)

as Sang-won

as Kang Eun-hyuk (16 episodes)

as Lee Min-chul (1 episode)

as Soo-young

as Cha Seung-pyo (16 episodes)

as Section Chief Kim

as Kim Eung Seok (8 episodes)

as Kang Dong-Soo (20 episodes)