<P> In 2008, the character was selected by film magazine Empire as one of The 100 Greatest Movie Characters of All Time, ranking at #76 . </P> <P> Biff Howard Tannen (portrayed by Thomas F. Wilson in the films and animated series and voiced by Kid Beyond in Back to the Future: The Game) is the main antagonist of the first 2 films and a local bully who harassed George McFly and has once altered history in the second film . He comes from a long line of bullies in Hill Valley, most of whom harassed members of the McFly family . Biff is also a descendant of Buford Tannen (also portrayed by Wilson), who is one of Hill Valley's outlaws during the 1880s . </P> <P> 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 . </P> <P> In the first film, George is portrayed as weak and the main target of Biff Tannen's bullying . The novelization of the film expounds on George's history of weakness, describing two incidents in which he is unable to stand up for himself . In 1955, in contrast with Marty, George did not have any friends for support and was targeted not only by Biff and his gang but also other kids in school . He has a penchant for science fiction, and writes some of his own but never allows himself to share them with anyone due to his fear of rejection . In 1955, with Marty's help, he gets the courage to stand up to Biff, knocking him unconscious . As a result, he and Lorraine fall in love and George becomes popular in school for defeating Biff in a fight . In the new future, they are both happily married with George working as a college professor and being a successful writer who orders Biff around . In the alternate timeline in Part II, George was murdered by Biff in 1973 . </P>

Who played marty mcfly's father in back to the future