Peter Puppy is Earthworm Jim's loyal companion and sidekick.
He is an ordinary earth dog who gained intelligence and the ability to turn into a monster whenever hurt, scared, or angry which is a curse placed by Evil the Cat. And only tickling can change him back from his monstrous form into his normal form.
- Anthropomorphic Dog
- Fur Colors
- Black (for Ears, 80% Gray to make it visible), and Tan
- Shirt Color
- Shorts Color
- Black, 80% Gray to make it visible
- Psycrow, Professor Monkey-For-A-Head, Evil the Cat, Queen Slug-For-A-Butt, Bob the Killer Goldfish, Evil Jim
- Jeff Glenn Bennett