Han Suk-kyu as Detective Cho

Shim Eun-ha as Chae Su-yeon

Jang Hang-seon as Detective Oh

Yu Jun-sang as Kim Ki-yeon

Yum Jung-ah as Oh Seung-min

Ahn Suk-hwan as Prosecutor Gu

Kim Jung-hak as Detective Lee

Gil Eun-hye as Young Soo-yeon

Park Cheol-ho as Section Chief Yoo

Lee Hwan-jun as Detective Kim

Kwon Tae-won as Chae Yong-hoon

Lee Dae-ro as Chief of Police

Maeng Bong-hak as Museum Colleague

Kwon Nam-hee as Soo-yeon's Mother