Norbert Gastell (Homer Simpson), Elisabeth Volkmann (Marge Simpson), Sandra Schwittau (Bart Simpson), Sabine Bohlmann (Maggie Simpson / Lisa Marie Simpson), Dan Castellaneta (Barney Gumble / Man in Crowd #2 / Ranger's Assistant / Man Asking for Marshmallow Squares / Droopy-Voiced Man / Blue-Haired Lawyer / Policeman / Grampa / Al Bundy / Man in Crowd / Mayor Quimby / Antibody #2 / Antibody #1 / Arnie Pie / Man Driving Car / I ), Julie Kavner (Selma Bouvier / Patty Bouvier / Marge Simpson), Nancy Cartwright (Nelson Muntz / Todd Flanders / Bart Simpson), Yeardley Smith (Lisa Simpson), Hank Azaria (Man Underneath Rug / Lou / Snake / Professor Frink / Apu Nahasapeemapetilon / Emergency Announcement Voice / Virus / Chief Wiggum / Japanese Worker #1 / Dr. Nick Riviera), Harry Shearer (Man in Crowd #1 / Ranger / Prison Warden / Bailiff / Judge Snyder / Sanjay / Ned Flanders / Dr. Hibbert / Mr. Burns / Steel Drum Player / Scratchy / Otto / Kent Brockman / Principal Skinner / Japanese Worker #2 / Doggy Doorman / Man in Pool)