Subject: I'd say it depends on the canon
Author:
Posted on: 2015-07-31 21:00:00 UTC
In 99.9% the characters believe their world is real, and I personally think fan-mades are the same, until being introduced to the PPC.
Then again, you have things like Marvel universe, and Deadpool, who is perfectly aware he's a fictional character and exists in a comic book.