Lee Soo-kyung
Yong-soon
Acting
Choi Deok-moon
Father
Acting
Park Keun-rok
PE Teacher
Acting
Kim Dong-young
Bbak-gyu
Acting
Jang Hat-sal
Moon-hee
Acting
Choi Chan-sook
Che-yook's Mother
Acting
Kim Ja-young
Moon-hee's Mother
Acting
Park Chul-min
Chief of School Administration
Acting
Kim Min-jae
Music Teacher
Acting
Choi Yeo-jin
English Teacher
Acting
Kim Eung-soo
Principal
Acting
Kim Han-na
Athletic Club Senior
Acting
Kim Ha-yeon
Young Yong-soon
Acting
Kim Young-jae
Birth Mother's Old Love
Acting
Lee Na-ra
Birth Mother
Acting
Park Ji-yeon
Art Teacher
Acting
Jang Hye-jin
Middle-aged Woman
Acting
Kim Keum-soon
Supermarket Worker
Acting
Na Ae-jin
Athletic Club Member
Acting
Han Sa-myeong
New Gym Teacher
Acting
Woo Yeon-seo
Ethics Teacher
Acting