This part of the page is fairly new. So all the characters wouldn't be up. But here's what I got so far!

Main Good Guys:

Earthworm Jim

Peter Puppy

Princess What's-Her-Name

Not-So-Good Guys:

Psy-Crow

Evil The Cat

Bob the Killer Goldfish

Professor Monkey-for-a-Head

Queen Slug-for-a-Butt