Ryu Deok-hwan
Oh Dong-ku
Acting
Baek Yoon-sik
Coach
Acting
Park Young-seo
Jong-man
Acting
Lee Eon
Park Joon-woo
Acting
Kim Yun-seok
Dong-ku's Father
Acting
Tsuyoshi Kusanagi
Japanese Teacher
Acting
Moon Se-yoon
Big Guy
Acting
Yoon Won-seok
Big Guy
Acting
Kim Won-sik
Dong-cheol
Acting
Choi Jung-woo
President
Acting
Jang Nam-yeol
Homeroom Teacher
Acting
Min Kyung-jin
Manager
Acting