The Return of: 4.13 is a user at the Fantendo Forums created by McQueenMario as a part of the User Characters Mystery, although it was created a fairly long time afterwards. After McQueenMario gave JesseRoo the password, the forums were "taken over" by 4.13 and "The Return of 4.13 Superland" forum was created, as well as the infamous lolwut topic.