Yonemi Kamon

Yonemi Kamon is a government employee who is the administrator of the current Battle Royale program. He briefs the students on the rules of Battle Royale. He is a vile and sadistic man, as he kills two students because they annoy him. He is also overtly lecherous. He also claims to have killed parents who objected to their children's placement in the program, as well as having raped Yoshitoki's guardian.

(Source: Wikipedia)