A mind-blowing ensemble of voice talent. Dan Castellaneta, Julie Kavner, Nancy Cartwright, Yeardley Smith, Hank Azaria, and Harry Shearer join host James Lipton.
Seeing the faces behind the characters will transform the way you watch the Simpsons forever.
Short attention span? Start with part 3 at 2:00 to hear the actors speaking 'in character'.