박중훈

Hwang Jae-sung

이선균

Jeong Eui-chan

이성민

Detective Jo

김정태

Detective Song

Ko Joo-yeon

Soo-yeon

한수연

Hyun-sook

Kang Ki-hwa

Hye-jin

Jeong Do-won

Detective Shin

안용준

Detective Kim

임원희

Ph.D Ko

이한위

Lee Yong-kab

Sung Yeol-seok

Metropolitan Detective

Lee Seung-cheol

Hyun-sook's father

김소진

Mapo Detective

장소연

Yoon Sung-won

Oh Seong-soo

Detective

배용근

Investigator

Kim Woon

Conscripted Policeman