Scraptrap is not a character that the actor can develop, he is corrupt and unpleasant. He's the leader of the Scraps and has no common sense. Lefty seems to be the only thing he wants from the pizzeria. He's the main villain so he's technically a Lead character. {also he can have any accent but British would be preferred because he's British in this AU} Any age can take this role but it would be better if someone with a deep voice did the acting.