Who plays marty mcfly in back to the future?

Michael J. Fox (born Michael Andrew Fox on June 9, 1961 in Edmonton, Alberta, Canada) is an Emmy Award-winning, Canadian-American actor who has had success both in television and in film. His best known roles include Marty McFly from the Back to the Future trilogy (1985-1990), Alex P. Keaton from Family Ties (1982-1989), and Mike Flaherty from Spin City (1996-2000).