Ryu Seung-ryong

as Ko Min-joong (1 episode)

as Jung Man-su

as Hwang Joong-goo

as Self

as Kim Nak-su (12 episodes)

as Oh Gwan-seok (11 episodes)

as Jin-bong

as Choi Sun-man (10 episodes)

as Self (1 episode)

as Jang Ju-won (21 episodes)

as Tailor (1 episode)

as Self (1 episode)

as Self (1 episode)

as Poong Woon-ho's Father

as Kang Jin-bong

as Hyun

as Museum Narrator (1 episode)

as Jeong Yak-yong

as Seung-ryong

as Self (1 episode)

as Self (5 episodes)

as Self (1 episode)

as Cho Hak-ju (12 episodes)

as Squad Chief Go

as Self (1 episode)