Hwang Jae-yeol

Citizen

Detective Kim

Homeroom teacher • 2 episodes

Detective Park • 12 episodes

Mr. Park • 1 episodes

Detective

Jung Jae Min • 1 episodes

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

Choi

Detective Ki-won • 1 episodes

Detective Song • 16 episodes

Jung Hyun-wo's Father • 2 episodes

Park Dong Chan • 12 episodes

Detective Jung • 12 episodes

Chung Yu Cheol

Control Team Leader #1

Obese • 2 episodes

Mr. Kim • 3 episodes

[Detective] • 1 episodes

Jeong Du-man (Detective) • 4 episodes

Man-cheol

Gap-doo

Kim Yoo-Chul [Detective] • 12 episodes

Patient's Son • 1 episodes

Ki Dong Su • 3 episodes

Hong-gyu

Kim Myeong-bae • 6 episodes

Navigator

[Sangdo Express Union member] • 32 episodes

Ganghwa Detective

Detective

Gambling House Manager • 1 episodes

Detective Go • 5 episodes

suit man