이정

Baek Sung Gi (School's top dog)

안재모

Jung Han-Soo

윤은혜

Han Min Joo (Tomboy Boxer)

현영

Kim Seon-mi

정준하

Ko Min-sik

천명훈

Han-soo's brother

박효준

Sung-gi's friend

박슬기

Kang Hae-soo

윤문식

김을동

Min-ju's mother