Dan Castellaneta Homer Jay Simpson, Barney Gumble, Grampa Simpson, Mayor Joe Quimby, Krusty the Klown, Groundskeeper Willie Voice Julie Kavner Marjorie Bouvier Simpson, Patty Bouvier, Selma Bouvier, Grandma Jackie Bouvier Voice Nancy Cartwright Bartholomew Jo-Jo "Bart" Simpson, Nelson Muntz Voice Yeardley Smith Lisa Marie Simpson Voice Harry Shearer Charles Montgomery Burns, Waylon Smithers, Principal Seymour Skinner, Ned Flanders, Otto Mann, Scratchy, Kent Brockman, Dr. Julius Hibbert, Reverend Timothy Lovejoy Voice Hank Azaria Moe Szyslak, Apu Nahasapeemapetilon, Chief Clancy Wiggum, Dr. Nick Riviera Voice Hank Williams Jr. 'Canyonero' Singer Guest Voice Marcia Wallace Edna Krabappel Guest Voice Maggie Roswell Miss Hoover , Computer Guest Voice Tress MacNeille Dolph Guest Voice Karl Wiedergott Pick-Up Truck Driver Guest Voice John Kassir Possum Guest Voice James L. Brooks Executive Producer Matt Groening Executive Producer David Mirkin Executive Producer