Gnu, often bailing on him whenever he calls for a stampede. Ironically, it is their lazy tendencies that keep Gnu as leader as any other leader (such as Roland the Waterbuffalo) would forcibly work them hard and into shape, which they don't want. Some of the herd have more distinct personalities, such as the gnu with a backwards baseball cap who speaks like a Californian surfer stereotype, an especially geeky gnu with an ID tag on his ear (these two can often be seen together), and a smaller gnu about Junior's age who appears to be the geeky gnu's little brother as they share similar characteristics, such as glasses and buck teeth Elmo the Crocodile: A somewhat passive and laid back crocodile who usually just floats in the pond. He tends to be the butt of physical pain humor every now and then as someone ends up landing on his head when jumping into the pond. Although he's as docile as any of the other animals in the Preserve, he will on the rare occasion indulge his predatory instincts by trying and failing to convince smaller animals to allow him to eat them Roland the African buffalo Lamont the Hippopotamus Roxanne the Ostrich (voiced by Dawn Ford) Grandpa Tortoise and his grandsons Sergeant Rhino Snake Frog and Toad Episode list Season one Season two Season three Crew Micheline Charest – executive producer Ronald A. Weinberg – executive producer Christian Davin – co-executive producer Cassandra Schafhausen – producer Nadja Cozic – director Louis Piche – director Pascal Pinon – director Katell Lardeux – line producer Justine Hyun Van Phong – line producer Lesley Taylor – line producer Natalie Dumoulin – associate producer Jan Van Rijsselberge – animation supervisor Heidi Blomkvist – timing director Sebastian Grunsta – timing director Alan Jeffery – timing director Jean Pilotte – timing director Pascal Pinon – co-director Greg Bailey – supervising director Andrew Gryn – talent coordinator Eric Theriault – background design Wayne Millett – background design supervisor Writing credits Roger Bollen – comic strip Joseph Mallozzi – writer Ian Boothby – writer Wayne Millett – writer Jennifer Kierans – writer Pierre Colin-Tiebert – writer Thomas LaPierre – writer Jacques Bouchard – writer Jacques Daviault – writer Patrick Granleese – writer Hugh Neilson – writer Maureen Neilson – writer Michael Palmeter – writer Gerard Lewis – writer John Handforth – writer Ken Ross – writer Amy