While his plays were popular and performed at court, there's no evidence that Shakespeare himself was ever a member of the acting company that performed before the queen.
It's important to remember that:
* Shakespeare was primarily a playwright, not an actor. While he may have acted in his younger years, his main focus was writing.
* Court performances were often reserved for specific companies. These companies were not always the same, and Shakespeare's company, the Lord Chamberlain's Men, may not have been chosen for all court performances.
* There are no official records of Shakespeare's personal life beyond his will. His life remains somewhat mysterious, and we can't be sure if he ever performed before the queen.
So, while Shakespeare's plays were likely performed for Queen Elizabeth I, it's unlikely that he himself was on stage.