Mr. Mueller, played by Brent Chapman, is a character in the film Freddy vs. Jason.
Mr. Mueller angrily chides his son Blake Mueller for having been at the house where his friend Trey Cooper was murdered, when he should have been home watching his sister instead. He asks if he's been drinking.
Blake argues back telling him to lighten up since his best friend had just been killed. Mr. Mueller tells him that he should watch himself before storming off.
Blake dozes off on the porch swing. When he snaps awake from a nightmare, he sees his dad again. But his head falls off because Jason Voorhees decapitated him. Jason then kills Blake.