Kim Yoo-nah
Yun-suk
Park Nam
Yun-sik
Park So-yeong
Sun-na
Kim In-jeong
Ok-i
박순천
Mother
윤철형
Father
Ryu Mi-oh
Vice Principal
김형일
Publisher
백일섭
Gyeong-su's Father
김정란
Gyeong-su's Mother
여운계
Doctor
Jeong Hye-seon
Principal
전원주
School Parent
Hong Yun-jeong
Loan Shark
김일우
Dispatcher
Hwang Min
Korean Teacher
Seo Chang-sook
Class Teacher
이대로
Grandfather
한영수
Yun-sik's Class Teacher
Lim Sun-taeg
MC
Han Myeong-gu
저 하늘에도 슬픔이
Released
Bande-annonce