Loyola University professor Robert A McNees posted several excerpts from an old issue of Dragon magazine, a publication run by original Dungeons & Dragons publisher TSR Inc. The pages contained stat blocks for Bugs Bunny, Daffy Duck, and several other popular cartoon characters that could be used in actual AD&D campaigns.

Bugs Bunny was presented as a 15th level illusionist with innate reality-warping abilities. Popeye the Sailor was presented as a 9th or 18th level fighter (the level boost was likely due to his ingestion of spinach) and Rocky and Bullwinkle were presented as mid-level fighters….although Bullwinkle’s Wisdom and Intelligence stats were woefully low.

Source: Comic Book Dot Com