Biff Tannen

Biff Tannen was the main antagonist of Back to the Future: The Ride until its closure in 2007. Ever since then, he felt betrayed as the decision was made between Doc and the Simpson family without any input from him.

Episode 1 - Back to the Future
After almost half a decade with no sign that the Simpsons or Doc would relent on their decision, Biff decided to take action. He defaced The Simpsons Ride and its surrounding exhibition sites, by graffito-tagging it with the comment "BTTF FOREVER!" and kidnapping Homer Simpson.

When he was caught, he decided to take action, and went back in time in his own Delorean to 2007, to convince the theme park executives not to remove the ride and prevent The Simpsons Ride from ever coming into fruition. He almost got away with it, until subseqeunt apprehension by Joseph Barnes. However, before legitimate action could be taken, he escaped and decided to go back even further to 1962, to stop construction on the theme park and make it exclusively about Back to the Future.

He came very close to destroying the construction on Jurassic Park: The Ride and King Kong Encounter, but was plummeted into a pile of manure after Doc's Delorean collided with his. Barnes sucked him into the camera-recorder device before he could cause any more harm.