<P> As the storm arrives, Marty returns to the clock tower and the lightning strikes on cue, sending Marty back to October 1985 . He finds that Doc is not dead, as he had listened to Marty's warnings and worn a bullet - proof vest . Doc takes Marty home, then departs to 2015 . </P> <P> Marty awakens the next morning to find his family changed: George is a self - confident, successful author, Lorraine is physically fit and happy, his brother David is a successful businessman, his sister Linda works in a boutique and has many "boyfriends" and Biff is now an obsequious auto valet . As Marty reunites with Jennifer, the DeLorean appears with Doc, dressed in a futuristic outfit, insisting they accompany him to 2015 to fix a problem with their future children . The trio gets inside the DeLorean and disappear into the future . </P> <Ul> <Li> Michael J. Fox as Marty McFly </Li> <Li> Christopher Lloyd as Dr. Emmett "Doc" Brown </Li> <Li> Lea Thompson as Lorraine Baines - McFly </Li> <Li> Crispin Glover as George McFly </Li> <Li> Thomas F. Wilson as Biff Tannen </Li> <Li> Claudia Wells as Jennifer Parker </Li> <Li> James Tolkan as Mr. Strickland </Li> <Li> Marc McClure as Dave McFly </Li> <Li> Wendie Jo Sperber as Linda McFly </Li> </Ul> <Li> Michael J. Fox as Marty McFly </Li>

Names of characters in back to the future