Dan Castellaneta (Cop / Scott Christian / Itchy / 'Wheel of Fortune' Contestant / Grampa Simpson / Barney Gumble / Emergency Announcer / Homer Simpson), Julie Kavner (Marge Simpson), Nancy Cartwright (Maggie Simpson / Bart Simpson), Yeardley Smith (Lisa Simpson), Hank Azaria (Chief Wiggum / Male Worker / Professor Frink / Instructor / Moe Szyslak / Apu Nahasapeemapetilon / Carl), Harry Shearer (Scratchy / Medic / Principal Skinner / Jasper / Kent Brockman / Lenny / Waylon Smithers / Montgomery Burns / Otto), Maggie Roswell (Luann Van Houten / Female Worker / Marguerita / Computer Voice), Pamela Hayden (Shelbyville Plant Computer Voice / Milhouse Van Houten), Russi Taylor (Martin Prince / Terri / Sherri), Jon Lovitz (Aristotle Amandopoulis / Mr. Avery Devereaux)