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

An 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 Hyuk-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

Lee Geon-moon

as Steel Gang Member

Choe Min

as Guryongpa Gang

Jung Sang-cheol

as Chief Prosecutor

Seo Jeong-gyu

as Prosecutor