Dean Pritchard is the main antagonist in the film Old School.

After three friends, Mitch, Frank, and Bernard, move into a house near a college campus, Pritchard (who was bullied by the trio as a kid) tells them that the house must be used for school-related purposes.  They then turn it into a fraternity where everyone is welcome, including an 80 year old man.  Pritchard is later fired for bribing a student in order to revoke the fraternity's charter.  During the end credits, he is killed by an exploding car.