Special Guest Stars Joe Mantegna voices Fat Tony Jay Pharoah voices Drederick Tatum Guest Stars Tress MacNeille voices Agnes Skinner Maggie Roswell voices Helen Lovejoy Maggie Roswell voices Ms. Hoover Pamela Hayden voices Additional Voices Tony Rodriguez voices Julio Franco Eric Lopez voices Bumblebee Man Chris Edgerly voices Laughing Crowd Tress MacNeille voices Springfield Zoo Director Tress MacNeille voices Mrs. McLellan Employee Jonathan Lipow voices Hyenas Jonathan Lipow voices Rhinos