이미연
— Lee Eun-joo
김보성
— Kim Bong-koo
Kim Min-jong
— Son Chang-soo
이덕화
— Park Gil-ho
최주봉
— Homeroom Teacher
김일우
— Mr. Jung
양택조
— Lee Jung-suk
Choi Soo-hoon
— Ahn Chun-jae
Choi Soo-ji
— Ms. Kang
전운
— Principal
정혜선
— Eun-joo's mother
이해룡
— Eun-joo's father
Hwang Byung-hoon
— Kang Moon-do
김의상
— Na Chok-sae
Lee Mi-nam
— Lee So-young