Dionysus is a fictional character in the Marvel Universe.
Dionysus is a god in the Olympian pantheon.
The character subsequently appeared in Thor Annual #5 (1976), Champions #2-3 (January-February 1976), Thor Annual #8 (1979), The Avengers #281 (July 1987), #283-285 (September-November 1987), Solo Avengers #11 (October 1988), Thor #398 (December 1988), Incredible Hulk: Hercules Unleashed (October 1966), Hercules #4 (September 2005), Thor: Blood Oath #2-4 (December 2005-January 2006), Ares #1 (March 2006), #3 (May 2006), and Deadpool/GLI: Summer Fun Spectacular #1 (September 2007).
Dionysus appeared as part of the "Olympian Gods" entry in the Official Handbook of the Marvel Universe Deluxe Edition #9.
Despondent at a former defeat at the hands of She-Hulk, Dionysus became suicidal. He came to believe the Olympian race was dying, so he stole a nuclear warhead from earth to help it along. Hercules attempts to talk him out of it, but Dionysus crafts a servant called 'Butcher T. Washington' to deal with him. Hercules was almost slain but at the last moment, Dionysus regains his sanity, saves Hercules and returns the warhead to Earth. He places himself at Zeus' mercy. As punishment, he is stripped of his memories and abilities. He ends up on Earth, as Dion, the bartender for 'Dion's Bar'.
Later, while back on Olympus, he becomes so inebriated, he falls off the edge and lands on Earth itself, namely 'Christmas Mountain' in Wisconsin . He is taken by the terrorist group A.I.M. They use his powers to cause mental instabillity in all the superheroes they consider a threat. At a pre-determined time, all affected bases are invaded. The Great Lakes Avengers and Deadpool rescue Dionysus just in time for the affected heroes to regain their stabillity and defeat their respective invading A.I.M. forces. Squirrel Girl helps Dionysus back to Olympus and into his own bed to sleep it off.