Park Soon-cheon

Mother

Kim Hyeong-il

Publisher

Baek Il-seob

Gyeong-su's Father

Kim Chung-ran

Gyeong-su's Mother

Yeo Un-gye

Doctor

Jeong Hye-seon

Principal

Jeon Won-joo

School Parent

Kim Il-woo

Dispatcher

Lee Dae-ro

Grandfather

Han Young-su

Yun-sik's Class Teacher