Kwon Sang-woo as Jang Do-young

Yoo Ji-tae as Oh Jin-woo

Son Byung-ho as Yoo Kang-jin

Uhm Ji-won as Kang Joo-hee

Lee Han-wi as Section Chief Bang

Lee Joong-moon as Lee Dong-jik

Ahn Kil-kang as Yang Ki-taek

Jo Hyun-wu as Instructor

Moon Jeong-hee as Yoon Jung-min

Kang Seong-jin as Jo Young-chul

Lee Joo-sil as Do-young's Mother

Jung Won-joong as Chief Prosecutor

Kim Yun-seok as Ju Hyun-tae

Ko Chang-seok as Gang Member

Cho Jin-woong as Guryongpa Gang Member

Kim Yong-tae as Yoo Kang-jin

Park Hyeok-kwon as Fellow Detective

Cho Seong-ha as Trial Prosecutor

Son Byeong-uk as Yellow Hair

Kim Se-dong as Captain Choi

Kim Won-jin as Dogang-pa Organization Member (uncredited)

Lee Gun-moon as Steel Gang Member

Choe Min as Guryongpa Gang

Jung Sang-cheol as Chief Prosecutor

Seo Jeong-gyu as Prosecutor