Special Guest Stars Megan Mullally voices Sarah Wiggum Hugh Jackman voices Janitor Robert Reich voices Himself Guest Stars Alex Désert voices Carl Carlson Pamela Hayden voices Milhouse Van Houten Grey DeLisle Griffin voices Martin Prince Tress MacNeille voices Agnes Skinner Maggie Roswell voices Helen Lovejoy Maggie Roswell voices Ms. Hoover Maggie Roswell voices Luanne Van Houten Tress MacNeille voices Crazy Cat Lady Dawnn Lewis voices Bernice Hibbert Chris Edgerly voices Tucker Carlson Tress MacNeille voices Tunnelton Narrator Tress MacNeille voices Linda Kevin Michael Richardson voices Tunnelton Man #2