Guest Stars Lacey Chabert voices Gwen Stacy Alanna Ubach voices Liz Allan James Arnold Taylor voices Harry Osborn Deborah Strang voices May Parker Grey DeLisle Griffin voices Sally Avril Peter MacNicol voices Doctor Octopus Clancy Brown voices George Stacy John DiMaggio voices Hammerhead Andrew Kishino voices Kenny Kong / Oberon Kevin Michael Richardson voices Tombstone Steve Blum voices Green Goblin James Arnold Taylor voices Frederick Foswell Kelly Hu voices Sha Shan Nguyen / Titania Eric Lopez voices Molten Man Dorian Harewood voices Doc Bromwell Steve Blum voices Blackie Gaxton Miguel Ferrer voices Silvermane Nikki Cox voices Silver Sable Jane Lynch voices Joan Jameson