Guest Stars Phil LaMarr voices Hermes Conrad Lauren Tom voices Amy Wong Maurice LaMarche voices Kif Kroker Tress MacNeille voices Hattie MacDoogal Dawnn Lewis voices LaBarbara Conrad Lauren Tom voices Inez Wong Maurice LaMarche voices Additional Voices Tress MacNeille voices Additional Voices Phil LaMarr voices Additional Voices Lauren Tom voices Additional Voices Tress MacNeille voices Boy Tress MacNeille voices Countess De La Roca Phil LaMarr voices iZac Uncredited David Herman voices Mayor Poopenmayer