Park Joong-hoon as Detective Woo

Ahn Sung-ki as Chang Sung-min

Jang Dong-gun as Detective Kim

Choi Ji-woo as Kim Ju-yeon

Ahn Jae-mo as Young-bae

Do Yong-gu as Detective Jang

Park Seung-ho as Detective Lee

Lee Won-jong as Detective Park

Ki Joo-bong as Chief of Criminal Unit

Song Young-chang as Drug Dealer

Lee Ho-seong as Hyeon-su

Lee Hae-eun as Detective Woo's Sister

Park Sang-myeon as Jang-gu

Park Gil-su as

Cheal-jong Shim as Detective Joo

Kwon Byung-gil as Laundry

Kim Jong-goo as Restaurant