사춘기 메들리

Kwak Dong-yeon

Choi Jung Woo

이세영

Yang Ah Young

곽정욱

Im Duk Won

최태준

Lee Yuk Ho

Park Jeong-min

Shin Young Bok

Bae Noo-ri

Jang Hyun Jin

윤박

Lee Won Il

백성현

adult Choi Jung Woo

정인기

Jung Woo's father

고수희

Jung Woo's mother

Oh Youn-hong

Ah Young's mother

정수영

Homeroom Teacher

윤주상

Yuk Ho's grandpa

Ahn Ji-hyun

Moon Soo Jung

강한샘

Park Sung Tae