황재열

Citizen

Detective Park

Homeroom teacher

Mr. Park

Choi

Sang Hun [Convenience Store Owner from North Korea]

Detective

Jung Jae Min

Park Dong Chan

Detective Ki-won

Jung Hyun-wo Dad (Eps 1, 2)

Detective Jung

Chung Yu Cheol

Detective Song

[Detective]

Obese

Man-cheol

Mr. Kim

Control Team Leader #1

Jeong Du-man (Detective)

Gap-doo

Kim Yoo-Chul [Detective]

Hong-gyu

Ki Dong Su

Patient's Son

Navigator

Kim Myeong-bae

[Sangdo Express Union member]

Ganghwa Detective

[Gambling House Manager]