Fan Casting Celebrity Paradox in Sort by Tropes

When pop culture references are made within a fictional work, it can create a sort of paradox to the audience where an actor playing a character within the work is also acknowledged to be an actor who has done work elsewhere, creating an assumption that they are somehow a different person from the actor despite looking identical. If a Celebrity Paradox is in play it assumes the current work is not a part of greater cultural landscape; any characters within are real people and not actors with a separate career. For that reason, this is generally barred by As Himself performances.