Lee Dong-hwi as Jung-yeop

Yu Seon as Ji-suk

Choi Myeong-bin as Da-bin

Lee Joo-won as Min-jun

Koh Soo-hee as Mi-ae

Seo Jeong-yeon as Moon-jeong

Won Hyun-jun as Jong-nam

Lee Na-ra as So-jeong

Jung Jun-won as Gun-woo

Lee Hyun-kyun as Byung-ju

Lee Ji-hoon as Hyun-seok

Lee Bom as Homeroom Teacher

Jung Hee-tae as Dong-cheol

Jeon Eun-mi as Clerk

Han Hee-jung as Child Welfare Center Employee

Yang Hee-won as Jun-ho

Heo Seung as Next door neighbor