Hwang Jae-yeol

as Detective Kim

as Citizen

as Detective Park · 12 episodes

as Homeroom teacher · 2 episodes

as Mr. Park

as Choi

as Sang Hun [Convenience Store Owner from North Korea] · 12 episodes

as Detective

as Jung Jae Min

as Park Dong Chan · 12 episodes

as Detective Ki-won

as Jung Hyun-wo's Father · 2 episodes