Namjjog-Eulo Twieo

Kim Yoon-seok

Choi Hae-gap

Oyeonsu

Ahn Bong-hee

Han Ye-ri

Choi Min-ju

Baek Seung-hwan

Choi Na-ra

Bagsalang

Choi Na-rae

Gimseong-Gyun

Hong Man-deok

Gimtaehun

Lee Jun-hyeok

You Chea-myung

Idogyeong

Sinsinbeom

School guard

Gimjayeong

Headmaster

Gimjongtae

Young Detective