Kang Ye-won

as Kang Su-a

Lee Sang-yun

as Na Nam-su

Choi Jin-ho

as Jang Hyung-sik

Ji Dae-han

as Kang Byung-joo

Kim Jong-soo

as Director Cha

Cheon Min-hui

as Mi-ro

Lee Hak-ju

as Dong-sik

Jang Tae-seong

as Depeartment Head Gu

Yoo Gun

as Woo-jin

Choi Youn-so

as Ji-young

Jo Jae-yun

as Detective Park

Kil Hae-yeon

as Su-a's mother

Kim Han-jong

as Balbari

Kim Won-jung

as Section Cheif Kim

Park Se-jin

as (uncredited)

Lee Kyu-ho

as Camera

Ahn Ji-hye

as Yeo Kyung

Kim Ho-won

as Doctor