Bae Myeong-jin

as Lee Gi-ri (12 episodes)

as Ma Seok-bong (12 episodes)

as Lee Won-joon (6 episodes)

as Won seo-hu ceowoker (1 episode)

as Control Room Staff

as Big 3

as Cha Eun-woo (16 episodes)

as Bae Yong-dae (12 episodes)

as 2-4 (6 episodes)

as Ji Woong (8 episodes)

as Dae-young

as Asst. Director Park (16 episodes)

as Lee Won-joon

as Police Officer

as Detective Kim

as Nurse Nam (2 episodes), as Heo Young-gyu (16 episodes)