Karl Zwicky Director John Cleese Albert, The Magic Pudding Voice Geoffrey Rush Bunyip Bluegum Voice Sam Neill Sam Sawnoff Voice Hugo Weaving Bill Barnacle Voice Toni Collette Meg Bluegum Voice Jack Thompson Buncle Voice Dave Gibson Uncle Wattleberry , Possum Voice John Laws Rumpus Bumpus Voice Mary Coustas Ginger Voice Harry Cripps Writer Greg Haddock Writer Simon Hopkinson Writer Gerry Travers Producer Paddy Conroy Executive Producer Bruce Davey Executive Producer