Heo Hyung-kyu

as Pyo Kyu-Cheol (1 episode)

as Yoo Jin-kwang (7 episodes)

as Kim Young-soo (16 episodes)

as 1-3 (6 episodes)

as Kang Jae-ho (6 episodes)

as Kang Sung Beom (12 episodes)

as Detective Kang

as Breath Test Police

as Detective Ko

as Intelligent Crime Investigation Unit Team Member

as Jung Woo-sik

as Construction Site Team Leader Heo