Adolescence Medley

Kwak Dong-yeon

Choi Jung Woo· 4 ep

Lee Se-young

Yang Ah Young· 4 ep

Kwak Jung-wook

Im Duk Won· 4 ep

Choi Tae-joon

Lee Yuk Ho· 4 ep

Park Jeong-min

Shin Young Bok· 4 ep

Bae Noo-ri

Jang Hyun Jin· 4 ep

Yoon Park

Lee Won Il· 4 ep

Baek Sung-hyun

adult Choi Jung Woo· 4 ep

Jeong In-gi

Jung Woo's father· 4 ep

Koh Soo-hee

Jung Woo's mother· 4 ep

Oh Youn-hong

Ah Young's mother· 4 ep

Jeong Soo-young

Homeroom Teacher· 4 ep

Yun Ju-sang

Yuk Ho's grandpa· 4 ep

Ahn Ji-hyun

Moon Soo Jung· 4 ep

Kim Dong-hee

Park Sung Tae· 4 ep

Lee Jong-hyun

Yang Young Woong· 2 ep

Lee Sung-yeol

student council president· 1 ep

Kim Hwan-hee

Young Bok's little sister· 1 ep