HOT GALLERY: Can You Match the Star with Their Simpsons Character?Making a list of the top voice cameos from The Simpsons is tougher than Homer trying to choose his favorite donut. So many great actors have made hilarious guest appearances during the series' 22 seasons, so we just picked some of our favorites. (Season 23 begins on September 25, 2011.) Can you guess whose voice is behind these classic characters? By Brett Singer
When Matt Groening and company decided it was time for Maggie to speak, they knew it would be a big deal. So they got one of the biggest names in showbiz.