Lee Doo-seok

as Kim Jeong-Su (1 episode)

as Hong Jin-Woo (16 episodes), as Hong Jin U (16 episodes)

as Reporter Han (10 episodes)

as Choi Dong-hoon (16 episodes)

as CEO Jin Sung-Ho (2 episodes)

as Kang Hyeong-Cheol (12 episodes)

as Lawyer (1 episode)

as Kim Doo-jin

as Park Jin-Woo (12 episodes)

as Lawyer (2 episodes)

as Voice Appearance

as CEO Baek Yul-Ho (12 episodes)

as Kwon Myung-Woo (16 episodes)

as Lawyer Park (2 episodes)

as Kim Ui-joon (12 episodes)

as Park Gun-woo

as Lee Jun-beom (5 episodes)

as Gyu-seok

as Player 062 (3 episodes), as Mat Te Soo/ Player 062 (9 episodes)

as Kim Bang

as Kim Min

as Scholar

as Jang In-seok (80 episodes)

as Secretary Park (32 episodes)

as Kim Joon-Sung (1 episode)