Personagens principais
Outros personagens
- Park Dong-soon
Kim Min-jucoreano - Jung Ho-yeon
Min Seung-woocoreano - Ahn Seung-kyu
Doh-hyeong Namcoreano - Kim Ji-min
Kim Yeon-woocoreano - Kim Sunny / Lee Su-kyungMi-Na Leecoreano
- Cho Ho-ran
Chae-Rin Kimcoreano - Yang Song-hee
Yea-Lim Kimcoreano - Young Lee So-ri
Kim A-rongcoreano - Young Jung Ho-yeonLee Serenacoreano
- Lee So-ri's Father
Ki-Wook Parkcoreano - Doctor
Soon-Mi Kimcoreano - Jersey
Kim Hyeon-ukcoreano - MaskWon Jong-juncoreano
- Bully from Hanwol Middle School
Hyun Sik Choicoreano