이수현
— Lee So-ri (voice)
김민주
— Park Dong-soon (voice)
민승우
— Jung Ho-yeon (voice)
남도형
— Ahn Seung-kyu (voice)
김연우
— Kim Ji-min (voice)
Lee Mi-na
— Kim Sunny / Lee Su-kyung (voice)
Kim Chae-rin
— Cho Ho-ran (voice)
Kim Yea-lim
— Yang Song-hee (voice)
김아롱
— Young Lee So-ri (voice)
이세레나
— Young Jung Ho-yeon (voice)
Park Ki-wook
— Lee So-ri's Father (voice)
Kim Soon-mi
— Doctor (voice)
김현욱
— Jersey (voice)
Won Jong-jun
— Mask (voice)
Choi Hyun-sik
— Bully from Hanwol Middle School (voice)