Lim Soo-jung

Yoon-jung / So-eun

Cho Jung-seok

Ji-hwan

Lee Jin-uk

Detective Gun-woo

Jung Jin-young

Detective Kang

Lee Ki-woo

Detective Lee

On Ju-wan

Teacher Park

Lee Tae-ri

Kang Seung-bum

Chun Sin-hwan

Biology Teacher

Kim Bo-ra

Choi Hyeon-ju

Shin Ji-soo

Nice Schoolgirl

Jung Woong-in

Kang Hyeong-chul

Kim Won-jin

Detective Yeo-ju

Im Ye-jin

Vice Principal

Park Jun-gyu

Real Estate Man

Kang Bo-min

Hostage Woman