When Beavis and Butt-Head are assumed to be dead in the last episode, McVicker organizes a teachers' party. Most commonly, he also refers to the duo as "little bastards" in return, the duo refers to McVicker as "McDicker". He also has threatened to kill Beavis and Butt-head. McVicker also has a bottle of pills (presumably anti-depressants or xanax) that he keeps in his desk and also will use (by the handful) in public. He speaks with a New York accent, constantly shakes, his voice is strained, and he keeps a bottle of Old Crow whiskey in his desk, from which he drinks even when people are present. McVicker suffers from extreme nervous tension caused by having to deal with Beavis and Butt-Head over the years. Principal McVicker: the principal of Highland High School.Dickie in the 2011 revival episodes ( Dumb Design, Copy Machine and School Test). Biology Teacher (Laraine Newman): A brunette female teacher who replaces Mrs.Butt-Head switches to Letterman's show just in time for his lead-in for "Top Ten Ways to Break Stuff". Prior to coming up with an idea for a television show as a class project that very closely approximates Letterman's show (in their imagination, Butt-Head appears as Letterman and Beavis as band leader Paul Shaffer), B&B are watching television at home when Beavis asks Butt-head to "put on that Letter dude". David Letterman (David Letterman): Letterman appears as himself in Late Night with Butt-Head.When they threaten him, he calls the bouncer Thor (see Other below). He turns B&B away because they are under age. Kelly (David Spade): The ticket attendant at Babes R Us (from the episode of the same name), a club where female mud wrestling matches are held.It is implied that he became an educational speaker only for the money. He is presumably arrested after both episodes. Candy fares much worse in a fight with Coach Buzzcut, who repeatedly kicks him in the face. Manners fights back, he gets into a confrontation with Mr. Manners of striking him or trying to molest him. In each episode, he instantly clashes with Beavis and Butt-head. Candy, promoting a fundraising drive for the school ( Candy Sale). Manners is an educational speaker who initially comes to Highland High to teach the students proper etiquette ( Manners Suck). He reappears in the 2011 revival episode Bounty Hunters, this time voiced by David Koechner. Goodnight Hairdo" and "Turd Boy." He also makes a cameo in It's a Miserable Life in the homeless shelter. He often respectively refers to Beavis and Butt-head as "Mr. He later teaches Beavis and Butt-head the art of panhandling ( Beavis, Can You Spare a Dime?), after noticing that pedestrians are more charitable toward him after mistaking the duo for his children. Homeless man (Bobcat Goldthwait): First seen briefly in a drunken stupor behind Maxi-Mart, where he trades his booze for the duo's old doughnuts ( Party).