- This article is about the guest star. For the character, see Trey Parker (character).
Trey Parker (born Randolph Severn Parker III; October 19, 1969) is an American actor, director, musician, producer, and writer, best known for creating South Park, along with Matt Stone and also the voices of Stan Marsh, Eric Cartman and other characters on the series. He was interviewed in The Simpsons 20th Anniversary Special – In 3-D! On Ice!.