Principal Mazur is one of the villains in the film A Goofy Movie. He isn't a pure evil villain, like Aunt Sarah.
In the film he tries to give a speech on how NOT to let summer be wasted by studying during the break. His speech is interrupted by Max performing the song Stand Out for the school. After catching Max and his friends he proceeds to punish them. During this time, Max makes a date with Roxanne and celebrates, forgetting what had happened earlier. Mazur takes the celebration as an act of showing no regret for his actions. He then calls Goofy warning him to keep Max in line or he might end up becomeing a criminal. This call results in Goofy's decision to take Max across the country creating the films plot.
Role in the series
Principal Mazur reprises his role from the movie.