What Does the J stand for in Michael J Fox?

Answer:
The "J" in "Michael J. Fox doesn't stand for anything. His birth name is "Michael Andrew Fox," but when he registered for the Screen Actor's Guild, the name "Michael Fox" was already taken, so he added the J for two reasons: 1) He didn't want to be "Michael A. Fox" because it presented a play on words, 2) He was paying homage to actor Michael J. Pollard.
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