용순: Reparto
이수경
Yong-soon
최덕문
Father
Park Keun-rok
PE Teacher
Kim Dong‑young
Bbak-gyu
장햇살
Moon-hee
Choi Chan-sook
Che-yook's Mother
김자영
Moon-hee's Mother
Park Chul-min
Chief of School Administration
김민재
Music Teacher
최여진
English Teacher
김응수
Principal
Kim Han-na
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
Woo Yeon-seo
Ethics Teacher