Kim Kang-woo

Yang Choon-dong

Kim Bum

Kim Joon

Park Hyuk-kwon

Gi-woo

Lee Jun-hyeok

Yang-soo

Seo Hyun-chul

Chief Detective Ko

Park Sung-woong

Chul-hyun

Kim Yoo-bin

Da-hee

Esom

Seung-gi

Seo Young-hwa

Joon's mother

Kim Ki-cheon

Studio owner

Yoo Seung-mok

Restaurant boss

Kim Jung-pal

Da-hee's Father

Kim Ik-tae

Chief of Police

Choi Kyo-sik

Detective

Jeong Jong-yeol

Detective 2

Park Geon-rak

Detective 3

Sung Il

Detective 4

Park Joo-Hyung

Guro-gu detective

Park Seong-yeon

Eun-ji's mother

Park Eun-young

Da-hee's neighborhood resident

Jung Yoon-Sun

Daycare center teacher

Yoon Park

Bully 1

Geum Bo

Bully 2

Oh Hee-jun

Bully 3

Kim Dong-kyu

Playground student 2

Seo Dong-seok

Service 1

Lee Chang-wook

Male reporter

Park Seo-yeon

Yeon-i

Son San

Borough office woman

Yoo Jae-sang

Young Choon-dong

Kim Jun-ho

Multi-level head of a department