Carolyn Keene
Carolyn Keene is the writer behind the notoriously popular The Nancy Drew series, which sold millions around the world and is a beloved set of stories to this day. Fans have long wondered about Carolyn herself, and whether she existed at all. As it turns out, a group of ghostwriters had been hired to write the large series, which is often the case with popular book series to this day. Carolyn is a collection of different people, so her existence is a piece of fiction itself.
Alan Smithee
If you grew up in the 60’s, you’ll definitely recall The Twilight Zone, one of the most popular television series in history. Each episode was directed by someone called Alan Smithee, and by the time it came to doing promotional interviews “he” was nowhere to be found. As it turns out, this was a collective name used for a group of directors who worked on making the series as good as it could possibly be.