Kim Yun-seok
Choi Hae-gap
Oh Yeon-soo
Ahn Bong-hee
Han Ye-ri
Choi Min-ju
Baek Su-ho
Choi Na-ra
Park Sa-rang
Choi Na-rae
Kim Sung-kyun
Hong Man-deok
Kim Tae-hun
Lee Jun-hyeok
Yoo Jae-myung
Lee Do-gyeong
Sin Sin-beom
School guard
Fight Teacher
Kim Ja-young
Headmaster
Kim Jong-tae
Young Detective
