ONE: High School Heroes (2025) | Full Cast

Seong-Tae Lee

DIRECTOR

Lee Eun-Jae

WRITER

Lee Jeong-Ha

Kim Eui Gyeom

Kim Do-wan

Kang Yoon Gi

Kim Sang-ho

Kim Eui-gyeom's father

Kim Joo-ryoung

Kim Eui Gyeom's mother

Shin Hyun-soo

Kim Soo-Kyum

Kim Jong-goo

Kim Ui-Gyeom's grandfather

Im Sung-kyun

Kim Seung-joom

Yuk Jun-Seo

Lee Gwi Jae

Yoo Hee-je

Choi Kisoo

Shin Jun Seop

Nam Seung-sik

Lim Hyun-tae

Choi Hong-il

Kim Mi-ra

Kim Ui-Gyeom's aunt