Sul Kyung-gu

as Dong-hoon

Uhm Ji-won

as Mi-hee

Lee Re

as So-won

Kim Sang-ho

as Gwang-sik

Kim Hae-sook

as Psychiatrist Jung-sook

Ra Mi-ran

as Young-suk's Mother

Kwon Tae-won

as Detective Squad Chief

Kang Shin-chul

as Prosecutor

Seo Hyun-woo

as Paramedic

Cha Mi-kyeong

as Vice Principal

Jeong Min-sung

as Reporter

Ahn Se-ha

as Cocomong Costumed Part-Timer

Jo Bok-rae

as Cocomong Costumed Part-Timer

Jo Moon-ee

as Court-appointed Lawyer

Kim Ooh-jin

as Judge

Yang Jin-sung

as Do-kyung

Kim Do-yeob

as Young-suk

Kim Jin-hyeok

as Detective Seo

Jin Sun-mi

as Head Nurse

Jang Dae-woong

as Young-suk's Friend

Yoon Jong-goo

as Mr. Kim

Jo Moon Eui

as Gook-sun

Kang Hye-jung

as Jong-sul

Park Eun-young

as Parents' Association President

An Hui-ju

as Parents' Association Member