Stewart is a gentle voiced, friendly character in the cartoon Beavis and Butt-head.

He likes to think of himself as Beavis and Butthead's friend, although the pair really don't like him and usually mock him. Frequently, when caught committing some sort of outragous prank, Beavis and Butthead blame Stewart ("He threatened to hit us"), which is quite often believed, even though Stewart is younger and smaller than the pair. Stewart is usually depicted wearing a Winger t-shirt.