Jo Seo-yeon

Park Seon-yoo

Choi Ro-woon

Ahn Jeong-gook

Yang So-min

Yoon Na-hee

Kim Sun-hwa

Jeong-gook's mother

Lee Hwi-jong

Homeroom teacher Hong

Lee Seon-hee

In-kyeong

Won Mi-won

Grandmother

Kim Joong-ki

Taxi Driver