Park Keun-hyong

as Hyeong-jun

as Kang Yeong-ik (7 episodes)

as Tae-ho

as Self (1 episode)

as Jongryung (12 episodes)

as Kim Chi-deok

as Chairman Kim (12 episodes)

as Hwang Soon-cheol

as 출연 (13 episodes)

as Kang Kang Hoon (6 episodes)

as Park Gi-joon

as Lee Man Ho (16 episodes)

as Chairman Park (1 episode)

as Self (1 episode)

as President Oh

as Jung In-Beom (16 episodes)

as Hasegawa

as Gil-jae

as Kim Sang-Chun (48 episodes)

as Self (1 episode)

as Shin Tae-Jong (124 episodes)

as Self (1 episode)

as Oh Man-Soo (16 episodes)

as Kim Shin