Park Joong-hoon

Hwang Jae-sung

Lee Sun-kyun

Jeong Eui-chan

Lee Sung-min

Detective Jo

Kim Jung-tae

Detective Song

Ko Joo-yeon

Soo-yeon

Han Soo-yeon

Hyun-sook

Kang Ki-hwa

Hye-jin

Jeong Do-won

Detective Shin

Ahn Yong-jun

Detective Kim

Im Won-hee

Ph.D Ko

Lee Han-wi

Lee Yong-kab

Sung Yeol-seok

Metropolitan Detective

Lee Seung-cheol

Hyun-sook's father

Kim So-jin

Mapo Detective

Jang So-yeon

Yoon Sung-won

Oh Seong-soo

Detective

Bae Yong-geun

Investigator

Kim Woon

Conscripted Policeman

Kim Rin

Children's Choir

Lim Jeong-woon

Victim's Husband

Yoo Min-seok

District Captain

Lim Seung-mook

Cheongdo Mapo Detective

Kim Seung-pil

Cheongdo Gang

Son Gwang-ik

Chief of Central Police Station

Son Seon-geun

Head of the Criminal