Shim Hyung-tak

as Detective Woo (8 episodes)

as Self (1 episode)

as Gye Sun-woo's uncle (1 episode)

as Han Do-kyung (12 episodes)

as 출연 (1 episode)

as Self

as Hwang Byeong-sim (16 episodes)

as Self (2 episodes)

as Choe Yun-hyeok (16 episodes)

as Chae Kang-Min (40 episodes)

as Ko Jung-do (50 episodes)

as Choon-Poong (32 episodes)

as Shim Hyung-tak (11 episodes)

as Lee Ho-Tae (54 episodes)

as Self - Guest (1 episode)

as Self (1 episode)

as Bong Min-gyu (18 episodes)

as Na Woo-jin/Kevin Edwards (12 episodes)

as Tae Pung (12 episodes)

as Baek Young-joon (149 episodes)

as Kim Hong-shik