Kim Ji-soo

Yong-bi

수호

Sang-woo

Ryu Jun-yeol

Ji-gong

Kim Hee-chan

Doo-man

김동완

Yong-bi's Older Brother

Kim Jong-soo

Chief Oh

최준영

Detective Choi

Lee Joo-shil

Sang-woo's Grandmother

Moon Hee-kyung

Ji-gong's Mother

유하복

Doo-man's Father

Lee Ji-yeon

Park Eun-hye

정도원

Detective Baek

Kang Jun-seok

Paramedic

한혜지

Nurse