Kang Shi-hyun

Na Aeri / Go Eunae (voice)

정혜원

Hany (voice)

홍범기

Mr. Hong / Student 1 / Student 5 / Bench Man (voice)

이새벽

Rapid Ju (voice)

이상호

Lee Changsu / Play-by-play Commentator / Doctor (voice)

김현욱

Yoo Juntae / Principal / Long-legged Athlete / Student 2 (voice)

곽규미

Mina / Lee Seoyeon / Bully Girl 2 / Bully Girl 4 / Student 3 (voice)

최낙윤

Na Aeri's Father / Color Commentator (voice)

Kim Ye-jin

Bully Girl 1 / Bully Girl 3 (voice)