저 하늘에도 슬픔이

Kim Yoo-nah

Yun-suk

Park Nam

Yun-sik

Park So-yeong

Sun-na

Kim In-jeong

Ok-i

朴顺天

Mother

윤철형

Father

Ryu Mi-oh

Vice Principal

金衡一

Publisher

白日燮

Gyeong-su's Father

김정란

Gyeong-su's Mother

吕韵季

Doctor

郑惠先

Principal