Who played Stan's dog in the South Park episode "Big Gay Al's Big Gay Boat Ride"?
Explanation
The answer is not George Clooney, but rather a misunderstanding. In the South Park Episode "Big Gay Al's Big Gay Boat Ride," Stan's dog Sparky is actually voiced by creator Trey Parker. Rumors and misconceptions might lead some to believe it was George Clooney, but this is not accurate. The role of Sparky was played by Parker, adding comedic value to the show.