One-Eyed Jack

In the episode The Horror of Slumber Party Mountain, One-Eyed Jack (played by Frank Welker) was an dumb hulk of a rabbit who was excluded by his kind. One day, Jack was run over by a truck driven by a taxidermist. He took Jack to his studio and remade him with a pair of antelopes into the monster he is today. When the Taxidermist kissed him, Jack woke up and escaped into the forest. Jack captured Buster, Babs, Plucky, Shirley, Hamton and Fifi and locked them all in the dungeon. Jack was really Elmyra in disguise, who wanted to cuddle them. And they all escaped.