Michael J. Fox (born June 9, 1961) is a Canadian-born actor, made famous by his roles as Marty McFly in the Back to the Future trilogy and as Alex P. Keaton on the sitcom Family Ties.

Born Michael Andrew Fox in Edmonton, Alberta, Canada, he adopted the J as a homage to character actor Michael J. Pollard. He has written an autobiographical book, called Lucky Man, about his experience of young-onset Parkinson's disease.

Notable roles include the Back to the Future movies, Mars Attacks!, Teen Wolf, and the TV series Family Ties and Spin City. He is the voice of Stuart Little in the series of movies based on the popular book by E. B. White, Chance in the Homeward Bound series, and Milo Thatch in Atlantis: The Lost Empire.

Michael J. Fox testifying in the United States Congress.In 1991 he was diagnosed with Parkinson's disease. Since then he has been a strong advocate of Parkinson’s disease research, especially stem cell research, which he believes may one day help sufferers of Parkinson's and other debilitating illnesses.

In 2000, he announced that he would be retiring from the lead role of Spin City after being diagnosed with Parkinson's disease. (A new lead character would be created for Fox's replacement, Charlie Sheen.)

In 2003, he wrote a pilot episode for a sitcom series entitled Hench at Home, but a full series was not produced.

Fox married actress Tracy Pollan in 1988. He has four children.

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