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Muddy Grimes is the main antagonist of Beavis and Butt-head Do America.

He was voiced by Bruce Willis who also portrayed a fictionalized version of himself in Gorillaz music video "Stylo".


He first appears when speaking on the phone to a friend of his to send hitmen at his wife, Dallas, to steal the X-5 Unit and murder her making it look like an accident. While speaking on the phone, he finds Beavis and Butt-head outside and mistakes them for the men he is hiring. As to using slang, Muddy tells them to "do" Butt-head even though the two mistake this as to meaning sexual intercourse. After telling them the rewards and giving them a picture, they give into the adventure.

Later on though, Muddy finds out that he hired the wrong guys and now he must kill them. He finds them out in the desert where they're almost dead from the heat, and then changes his mind to let them live. He takes the two in his trunk so the police will not find them and have himself arrested, as they are on the FBI's Most Wanted list for carrying the X-5 Unit.

When Muddy makes it to Washington D.C., but then he finds out that Beavis and Butt-head escaped from his trunk and he threatens to kill them, until Dallas seduces him by saying that they'll both kill them. Dallas eventually betrays Muddy when they are both arrested when Muddy says that he and his wife were getting together again. They go back to hating each other, and the last seen of them is when they're arrested in a secured truck, along with Tom Anderson.


  • Muddy's character is similar to the character Todd Ianuzzi, who never appears in the film. It is possible that Muddy is the movie counterpart to Todd, as they are both violent criminals who threaten and harm the main characters.
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