|Voiced by||Trey Parker|
|First Appearance||Big Gay Al's Big Gay Boat Ride|
Fosse and his friend Bill Allen are always hanging out with each other, laughing and calling things gay. They're mostly background characters, but have made a few appearances, like in Big Gay Al's Big Gay Boatride and Lil' Crime Stoppers.
Fosse is a bully, often laughing at things and people. In addition, he thinks everything is gay; on one occasion Fosse even said "we're gay", which shows his apparent opinions on everything. Due to his seeming stupidity, it appears he did not make it to the fourth grade - he is never seen in the fourth grade classroom, but is in the halls, and is only seen in the hallway and playground after the second season. His voice appears to sound almost the same as Bill Allen's. He was seen in "Lil' Crime Stoppers" when the boys discovered he, along with Bill, had stolen Sarah Peterson's doll. They then played along and were "shot" in the game; however, they were just playing a game and didn't die. Fosse seems to be one of the more naive children in the school along with Bill, Butters, Jason, and DogPoo. In the episode "It's a Jersey Thing", he is seen as part of Cartman's group to help capture and lock up Kyle. It seems that unlike most other kids, (Craig, Token, Jimmy) who are more aware of Cartman's manipulating methods, Fosse still hasn't wised up to it and so that is why Cartman would most likely seek him out for help.