용순

Lee Soo-kyung

Yong-soon

Choi Deok-moon

Father

Park Keun-rok

PE Teacher

Kim Dong-young

Bbak-gyu

Jang Hat-sal

Moon-hee

Choi Chan-sook

Che-yook's Mother

Kim Ja-young

Moon-hee's Mother

Park Chul-min

Chief of School Administration

Kim Min-jae

Music Teacher

Choi Yeo-jin

English Teacher

Kim Eung-soo

Principal

Kim Han-na

Athletic Club Senior

Kim Ha-yeon

Young Yong-soon

Kim Young-jae

Birth Mother's Old Love

Lee Na-ra

Birth Mother