Ko In-beom

as Oh Sang-moon (1 episode)

as Governor-General

as Dong Dong-il (1 episode)

as Wang Teo-Joo (1 episode)

as Jo Man-hong (20 episodes)

as Lee Sang In

as Jang Jong-gil (3 episodes)

as Man-gil

as Oh Da-Jin (123 episodes)

as Jung Soo-Chan (32 episodes)

as Tae Pil-Woon (40 episodes)

as Im Ba-reun's Father (16 episodes)

as Kim Seub (20 episodes)

as Kook Chae-wan (16 episodes)

as Yarn testing machine rejection

as Team leader

as Police substation captain

as NIS

as Executive Director Lee Joo Ho (18 episodes)

as Hyung-bae's Father

as Company president Jan (15 episodes)

as Coach

as Citizen 2

as Park Eun-bong

as Yang Chun Man (20 episodes)