Jung Woong-in

as Nam Ja-ryong (1 episode)

as Kim Jin-ju (1 episode)

as Baek Chun-ik (12 episodes)

as Jeon Tae-su (3 episodes)

as Yoon Won-cheol (10 episodes)

as Lee Gwang-gil

as Nam Chi-yeol (12 episodes)

as Na Jin-soo

as Jeong Doo-man (12 episodes)

as Chairman Seol (16 episodes)

as Seok Cheol-hwan (14 episodes)

as Kang Ji-seok (1 episode)

as Lee Sung-joo (12 episodes)

as Oh Tae-soo (14 episodes)

as Jo Won-bo (20 episodes)

as Chief Prosecutor Woong-in

as Seung-won

as [Chaebol man] (1 episode)

as Jang Won-seok (12 episodes)

as Hansu's father (1 episode)

as Bang Soon Chul

as Jang Yoon-Seok (20 episodes), Creator

as Kim Soo-cheol