용순

이수경

Yong-soon

최덕문

Father

Park Keun-rok

PE Teacher

Kim Dong‑young

Bbak-gyu

장햇살

Moon-hee

최찬숙

Che-yook's Mother

김자영

Moon-hee's Mother

Park Chul-min

Chief of School Administration

김민재

Music Teacher

최여진

English Teacher

김응수

Principal

김한나

Athletic Club Senior

Kim Ha-yeon

Young Yong-soon

김영재

Birth Mother's Old Love

이나라

Birth Mother

박지연

Art Teacher

Jang Hye-jin

Middle-aged Woman

김금순

Supermarket Worker

나애진

Athletic Club Member

한사명

New Gym Teacher