Buford "Mad Dog" Tannen uses the seemingly modern word "Dude" in Back to the Future Part III, but this isn't the anachronism ...
Biff might have restored the status quo to what it was before Marty McFly changed history, forcing George McFly to become his subordinate again. Back to the Future Part II would still have needed ...
However, Marty McFly - voiced by David Kaufman in the animated series - openly ponders whether every period they visit has its own past or future version of Biff Tannen. Either way, there's very ...