!Taz
* AntiHero (Type IV)/ AntiVillain (Type I)
* ElectiveUnintelligible
* IronButtMonkey
* Creator/JimCummings
* PunchClockVillain: Replaced [[WesternAnimation/RalphWolfAndSamSheepdog Ralph Wolf]] in one episode.

!Jean

!Hugh
* MauriceLaMarche
* NoCelebritiesWereHarmed: Of Music/BingCrosby
* TrademarkFavoriteFood: OJ
** "Yay"

!Jake
* CheerfulChild

!Molly
* KellieMartin
* ValleyGirl

!Digeri Dingo
* DeadpanSnarker
* FourthWallObserver
* {{Jerkass}}
** JerkWithAHeartOfGold
* RobPaulsen

!Wendell T Wolf
* Creator/JimCummings
* LastOfHisKind: The Last Tasmanian Wolf (Thylacine)
* NoCelebritiesWereHarmed: Of Creator/WoodyAllen.

!Francis X Bushlad
* {{Determinator}}
* RobPaulsen

!Bushwacker Bob
* GrumpyBear
* HiddenHeartOfGold
* {{Jerkass}}: He ''does'' have a soft side, but it appears in about once in a blue moon.
* Creator/JimCummings

!Mum

!Constance Koala
* CuteBruiser: "Autograph Pound" is one example.

!Mr. Thickley
* DanCastellaneta
* KangaroosRepresentAustralia: Technically a wallaby.
* KnowNothingKnowItAll

!Bull Gator
* AffablyEvil
* SesquipedalianLoquaciousness: He is known to make liberal use of phrases and linguistics not commonly heard by the layman.
* AntiVillain: He and Axl just want to please to zoo-going children of the world. And get money for doing so.
* FourthWallObserver: Sometimes Bull shows signs of Medium Awareness, and acknowledgement, that he exists on an animated television show.
* JohnAstin
* WellIntentionedExtremist
* PunchClockVillain
* LizardFolk: Of the Alligator variety.

!Axl
* MinionWithAnFInEvil
* RobPaulsen
* PunchClockVillain: Seems to be this, just like his superior above.
* LizardFolk: Of the Alligator-type, just like Bull.
* ObfuscatingStupidity: One episode reveals that he holds multiple degrees, including a doctorate in biomolecular engineering, and he just acts stupid because it's part of being a sidekick.

!Buddy Boar
* FlatCharacter: Arguably, the most boring character on the show.
* Creator/JimCummings
* PutOnABus

!The Platypus Brothers
* [[EverythingsBetterWithPlatypi Everything's Better With Platypodes]]
* MauriceLaMarche and RobPaulsen

!Kiwi
* {{Expy}}: Of the Road Runner.
* RidiculouslyCuteCritter

!Bushrats
* {{Lilliputians}}
* {{Ridiculously Cute Critter}}s

!Willie Wombat
* {{Expy}}: Of WesternAnimation/BugsBunny (Much to his chagrin).
* NiceGuy