Michael J. Fox's real middle name is Andrew, but he didn't like "Michael A. Fox" as a stage name. By SAG rules, he had to use a name other than "Michael Fox" because there was already an actor with that name, so he just stuck a J in the middle.
In his hit movie "Back to the Future", his character's father, George, says he has to get home so he doesn't miss his favorite TV program, "Science Fiction Theatre". "Science Fiction Theatre" had only 8 episodes. Four starred the original Michael Fox!