Lee Sun-kyun as Go Gun-su

Cho Jin-woong as Park Chang-min

Jeong Man-sik as Detective Choi

Shin Jung-keun as Chief of Homicide

Shin Dong-mi as Younger Sister

Heo Jung-eun as Min-a

Kim Dong-young as Detective Doh

Ju Seok-tae as Detective

Park Bo-gum as Officer Lee Jin-ho

Lee Ji-hoon as Police Officer of Chemistry Storage

Kim Bo-kyung as Ex-wife

Kim Kang-hyun as Young-cheol

Kim Hae-gon as Vault Owner

Gi Ju-bong as Mr. Kim

Bae Yoo-ram as Police Officer

Jang In-sub as Police Officer

Seo Hyun-woo as Police Officer

Jang Jun-nyeong as Mr. Choi