Kim Jae-chul

as Bo-seong (8 episodes)

as Yang Chul-hwan (9 episodes)

as Lee Dae-ho (16 episodes)

as Hong Tae-oh (12 episodes)

as Director Jin

as Park Ji-yong

as Kim Tae-joon (1 episode)

as Yoon Hyeong-Seol (20 episodes)

as Mu-young

as Park Myung-hwan (16 episodes)

as Lee Jin Soo (16 episodes)

as Bank Loan Applicant (1 episode)

as Byun Tae Shik [tainted food] (1 episode)

as Min-jae

as Manager Jang

as President Jin's executive assistant

as Department Store Product Evaluator

as Detective Lee

as Ace Crew Member 1