Marty McFly age 47 vs. Michael J. Fox age 49 Read 2 comments I love him! He is such an inspiration. Well, the real Michael J Fox certainly has faired the years better than his alter ego… I am so loking forward to his new sitcom!! Leave a Reply Cancel replyCommentName Email Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.