Lee Beom-soo

Lee Ji-bong

Jo An

Park Young-ja

최희서

Seo Yeo-soon

김민영

Lee Bo-young

Byun Hee-bong

School Superintendent

Ki Joo-bong

Director Baek (cameo)

안용준

In-ho

임승대

Doctor

김산

Shim Sang-hwan

박준금

Principal

Woo Hyeon

Head teacher

신정근

Big brother

이미소

Seo Young-ran

송재희

Waiter

최성웅

Local notable