Ryu Deok-hwan

Oh Dong-ku

Baek Yoon-sik

Coach

Park Young-seo

Jong-man

Lee Eon

Park Joon-woo

Kim Yun-seok

Dong-ku's Father

Tsuyoshi Kusanagi

Japanese Teacher

Moon Se-yoon

Big Guy

Yoon Won-seok

Big Guy

Kim Won-sik

Dong-cheol

Choi Jung-woo

President

Jang Nam-yeol

Homeroom Teacher

Min Kyung-jin

Manager