Lee Moon-sik

as Jo Shin-chul (3 episodes)

as Shin Jung-seok (5 episodes)

as Gang Boss (1 episode)

as Jeong-hoon

as Lee Bang

as Jo Shin-chul

as Go Yang-cheol (16 episodes)

as Park Ju-taek (10 episodes)

as Mr. Park

as Hwang Jang-gun (32 episodes)

as Ki Yong-Moon (40 episodes)

as Team Leader Jung

as Detective Squad Chief - Cameo

as Yoo Seung-Ryeol (32 episodes)

as Cheol-soo

as Jodan (12 episodes)

as Oh Ji-Rak (32 episodes)

as Eom-gong (18 episodes)