Jim Cummings as Negaduck, Cajun Fox and Papa Heffalump Dan Castellaneta as Megavolt Michael Bell as Quackerjack Tino Insana as Bushroot Jack Angel as Liquidator Barry Humphries as Bruce Eric Bana as Anchor Bruce Spence as Chum Huell Howser (may he rest in peace) as Backson Ken Page as Oogie Boogie Jeff Bennett as Ace, Grubber, Larry, Big Billy and Ollie Tom Kenny as Snake and Lil' Arturo Matthew W. Taylor as Snaptrap Daran Norris as Francisco and The Chameleon Rob Paulsen as BirdBrain Paul Schoeffler as Katz, The Big Toe and Le Quack ??? as The Puddle Queen and Weremole Kazumi Evans as Adagio Dazzle and