who played marty mcfly's father in back to the future
List of Back to the Future characters George Douglas McFly (portrayed by Crispin Glover in Back to the Future and by Jeffrey Weissman in Back to the Future Part II and Back to the Future Part III and voiced by Michael X. Sommers in Back to the Future: The Game) is the father of Marty, Linda and Dave from the union with his wife Lorraine Baines McFly. Although he is one of the main characters in the first movie, George only makes cameos in Back to the Future Part II and Back to the Future Part III.
Back to the Future Part II On October 26, 1985, Dr. Emmett Brown arrives in the DeLorean time machine and persuades Marty McFly and his girlfriend, Jennifer Parker, to travel to the future with him, and help their future children. Biff Tannen witnesses their departure. They arrive on October 21, 2015, where Doc electronically knocks out Jennifer, and leaves her asleep in an alley, explaining that she should not have too much knowledge of future events. He has Marty pose as his own son and lookalike Marty Jr. to refuse an offer to participate in a robbery with Biff's grandson Griff, thus saving both of Marty's children from prison.