Animals

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  Agent A (aardvark)
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  Agent A (ant)
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  Agent A (Anteater)
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  Agent A (armadillo)
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  Agent B (bear)
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  Agent C
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  Agent C (crocodile)
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  Agent D (dog)
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  Agent D (duck)
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  Agent Dog (2nd Dimension)
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  Agent E
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  Agent F (fox)
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  Agent F (frog)
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  Agent G (goat)
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  Agent G (Gorilla)
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  Agent H (heron)
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  Agent K (2nd Dimension)
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  Agent K (kangaroo)
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  Agent L
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  Agent M (monkey)
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  Agent M (moose)
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  Agent M (mouse)
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  Agent O (octopus)
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  Agent O (Ostrich)
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  Agent O (owl)
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  Agent P (porcupine)
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  Agent P (possum)
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  Agent R (2nd Dimension)
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  Agent R (raccoon)
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  Agent R (rat)
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  Agent R (reindeer)
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  Agent R (rhinoceros)
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  Agent Rat (2nd Dimension)
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  Agent S (Sloth)
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  Agent S (snake)
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  Agent S (squirrel)
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  Agent T (sea turtle)
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  Agent T (tadpole)
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  Agent T (turkey)
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  Agent W (whale)
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  Agent W (worm)
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  Agents F (koi)
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  Agents O (ostriches)
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  Albert the Moose
• 
  Animal Borgs
• Animals
• 
  Aqua Primates

• Background animals
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  Bango-Ru
• 
  Barry
• 
  Beaver (agent)
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  Belgian Shepherd
• 
  Biff
• Big Mouth Ramon
• 
  Bigfoot
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  Bobo the Rabbit
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  Bontebok agents
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  Bucky
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  Bulldog (agent)
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  Bunka da Bunkaquan

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  Calvin the Cat
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  Calvin the Cat (2nd Dimension)
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  Cheetah (agent)
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  Crikey the Crocodile

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  Dennis the Rabbit
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  Dennis the Rabbit (2nd Dimension)
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  Derek the Stunt-Bat
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  Diogee
• 
  Doonkelberry Bats
• 
  Ducky Momo

• 
  Floyd
• 
  Floyd (bug)
• 
  User:FoxyAlex25

• 
  Gary the Gander
• 
  Gertrude (Excaliferb)
• 
  Giant squid
• 
  Gnarl
• Category:Goldfish
• 
  Goldie
• 
  Goozim

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  Harry the Hyena
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  Heinz Doofenshmirtz's unnamed bird
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  Herman the Hedgehog
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  Horse in a Bookcase (character)
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  Human Head Fly

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  Johnson family poodle

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  Karen the Cat

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  Goozim (2nd Dimension)
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  Perry the Platyborg (Toy Dimension)
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  Lawrence Fletcher (Lost in Danville Dimension)
• 
  List of Doofenshmirtz's pets
• 
  List of O.W.C.A. agents

• 
  Maggie the Macaw
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  Manny the Mongoose
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  Marty the Rabbit Boy
• Category:Members of the Bug Trio
• 
  Mother ocelot

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  Napoleon
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  Newton the Gnu
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  Nosey

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  Olga and Chicago Joe
• 
  File:On the savannah nap.jpg
• 
  Only Son
• 
  Ox

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  Parable the Dragonpus
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  Perry the Platyborg (Desert Dimension)
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  Perry the Platypus
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  Perry the Platypus (1914)
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  Perry the Platypus (2nd Dimension)
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  Perry the Rebelpus
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  Master Perry the Platypus
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  Peter the Panda
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  Peter the Panda (2nd Dimension)
• Category:Pets
• 
  Phineas and Ferb's unnamed fish
• 
  Pig (agent)
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  Pinky the Chihuahua
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  Pinky the Chihuahua (2nd Dimension)
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  Platypus
• 
  Platypus monster
• 
  Professor Parenthesis

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  Rabbit (agent)
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  Residents of Odd
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  Robe-wearing platypus
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  Robot Bull

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  Sergei the Snail
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  Sir Bacon
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  Starnose Mole
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  Steve
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  Sweary the Swan

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  T. rex
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  Talking Zebra
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  Terry the Turtle
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  Terry the Turtle (2nd Dimension)
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  Tristan
• Two-headed cow

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  Unnamed bat agent
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  Unnamed chimpanzee agent
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  Unnamed elephant agent
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  Unnamed gazelle agent
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  Unnamed giraffe agent
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  Unnamed gnu agent
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  Unnamed hippo agent
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  Unnamed horse agent
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  Unnamed lemur agent
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  Unnamed lion agent
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  Unnamed lioness agent
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  Unnamed meerkat agent
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  Unnamed mouse
• 
  Unnamed penguin agent
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  Unnamed shark agent
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  Unnamed warthog agent
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  Unnamed waterbuck agent
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  Unnamed Zebra Agent

• 
  Wendell
• 
  Whale song-singing double-breasted angle hooper
• 
  Whalemingo (alien)
• 
  Phineas and Ferb Wiki:Wikia tour/Perry the Platypus
• 
  Wolves