Kim Cheol-yun

as Kang Jin-su

as Sung-hyun

as Dong-chun

as Jung-Bok (9 episodes)

as Gambler

as Priest

as Nam-il

as Manager

as Bum-sun (12 episodes)

as Squad Leader

as Lee Tae-won

as Double agent (1 episode)

as Hospital hostage taker (1 episode)

as Sang-min (1 episode)

as Public Security Elite Agent (Sewage Culvert)

as Chul-yoon

as North Korean Defector (2 episodes)

as Yeongdeungpo Thug at the Graveyard