animation - A 90s cartoon show about racoons

You mean The Raccoons.

The series revolves around Bert Raccoon and married couple Ralph and Melissa Raccoon, of whom Bert is a friend and roommate. The series mostly involved the trio's efforts against the industrialist forces of greedy Aardvark millionaire called Cyril Sneer (the antagonist you meant), who usually tries to destroy the forest for money.