Seo Yea-ji as Kim Soo-jin

Kim Kang-woo as Kim Sun-woo

Sung Hyuk as Lee Ji-hoon

Park Sang-wook as Detective Cho Ki-sang

Bae Yoo-ram as Detective Bae

Yeom Hye-ran as Director of Fine Arts Academy

Park Bom-I as Little Girl

Gong Yu-rim as Teenage Girl

Kim Kang-hoon as Boy

Kim Joo-ryoung as Doctor

Kim Jong-goo as Factory Manager

An Min-young as Girl's mother

Song Chang-gyu as Apartment Security Guard

Bae Je-gi as Loan Shark