Jang Won-young

as Shim Gang-hun (2 episodes)

as Mr. Kim Soon-kwan (12 episodes)

as Kim Hee-do (14 episodes)

as Executive manager Kim (3 episodes)

as Mr. Bang (14 episodes)

as Oh Cheon-won (8 episodes)

as CEO Kim OMEGA Entertainment CEO (1 episode)

as Doctor

as Doo-hee

as Joo In-do (32 episodes)

as Mr. Yang (1 episode)

as Kang Moo-Sung (1 episode)

as Director Park (16 episodes)

as Train Pervert (1 episode)

as Kwon

as Kwon Chang-tae (3 episodes)

as Suk-ho

as 악어 (16 episodes)

as Department head Kang

as 이철만 (16 episodes)

as Jang Won-young (16 episodes), as Choi Kyu-sik (1 episode)

as Leather Man

as Kim-yong