Richard "Dick" Vernon is the vice principal of Shermer Highschool and the main antagonist of the film.
Mr. Vernon is a strict and stern person, who does not take kindly to jokes around him. After Bender insults him numerous times, he gives him two months of detention. When Bender and the others go to the hall so he can retrieve marijuana from his locker, Bender takes the fall for everyone, allowing them to go back without getting caught. Vernon locks him in a storage closet for the remainder of the day and threatens him, making Bender think that he's not all tough. He also starts to wonder on how the kids will turn out in the future, and shows serious anxiety and fear in knowing that the incoming generation will be running the world when he is an old man. At the end of the movie, the kids didn't write the assignment he wants them to do, instead they write how he can't accept who they are and he failed to break them. The janitor tells him to not count on those kids to help him because of how he's treating them. He'll one day be alone and no one will care about him when he dies.
Also, he's very gay for Carl the janitor.