Screenwriter Bob Gale confirmed Marty McFly's nemesis in the trilogy, Biff Tannen, was modelled on Donald Trump.
HollywoodLife, Tiny Fox Lab

“Back to the Future” screenwriter Bob Gale has revealed that Donald Trump was the inspiration for Marty McFly’s arch nemesis Biff Tannen.Tiny Fox Lab Facts

Preview photo credit: HollywoodLife