류덕환
Go Hwan
Ahn Jae-hong
Gap Deok
김동영
Nam Joon
전노민
[Go Hwan's father]
Jeon Mi-seon
[Go Hwan's mother]
Lee Han-wi
[Gap-deok's father]
이병헌
{The Thug}
Han Kuk-jin
[Homeroom teacher]
