Choi Jung-woo

as Su-hyeon's Father (2 episodes)

as Byun Kang Suk (12 episodes)

as Chief Secretary

as The President

as Chief secretary

as President Han

as Yoon Dae-hong (16 episodes)

as Chief Judge (2 episodes)

as Geum Jong-hwa (120 episodes)

as Hwang Hyun-seung (16 episodes)

as Lee Taek-kyung (32 episodes)

as Lee Dong Jae (18 episodes)

as Jo Koo-Ho (32 episodes)

as Mr. Koo

as Yeon Chan-Koo (50 episodes)

as Sa Jung-Do (32 episodes)

as Police Executive

as Park Sang-Goo (100 episodes)

as Heo Il-joong (20 episodes)

as Seo Jin-tak (20 episodes)

as Jang Min-Ho (54 episodes)

as Baek Jun-sang (50 episodes)

as Chun Sang-won (10 episodes)

as Lee Moo-yang (16 episodes)

as Moon Hyung-wook (20 episodes)