Kim Yoo-nah

Yun-suk

Park Nam

Yun-sik

Park So-yeong

Sun-na

Kim In-jeong

Ok-i

박순천

Mother

윤철형

Father

Ryu Mi-oh

Vice Principal

김형일

Publisher

백일섭

Gyeong-su's Father

김정란

Gyeong-su's Mother

여운계

Doctor

Jeong Hye-seon

Principal

전원주

School Parent

Hong Yun-jeong

Loan Shark

김일우

Dispatcher

Hwang Min

Korean Teacher

Seo Chang-sook

Class Teacher

이대로

Grandfather

한영수

Yun-sik's Class Teacher

Lim Sun-taeg

MC

Kim Hye-yeong

MC