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 George Harrison himself Guest Voice David Crosby himself Guest Voice Pamela Hayden Milhouse Van Houten Guest Voice James Campbell Seymour Skinner Guest Voice Michael Economou Apu Guest Voice Shelby Grimm Barney Gumble , Chief Wiggum Guest Voice Don Jordan Homer Simpson (singing voice) Guest Voice The Dapper Dans The Be Sharps Guest Voice James L. Brooks Executive Producer Matt Groening Executive Producer David Mirkin Executive Producer