John Carter
A version of John Carter was one of the guests from across the Multiverse brought to the grand opening of the Oasis Springs Nudist Resort by Jenny Everywhere and Jenny Anywhere. She was seen sitting at a table with his Martian partner Dejah Thoris and her handmaidens, Brin and Loo. (VIDEO: Grand Opening)
Behind the scenes
John Carter originated as the protagonist of Edgar Rice Burroughs's Barsoom novels, with Dejah Thoris, the titular princess of Burroughs' original Martian novel, A Princess of Mars, acting as his love interest. Both characters were introduced in this book, serialised in 1912 and released in collected form in 1917; as such, they are in the public domain. The same is not true of handmaidens Brin and Loo, who originated in a modern continuation.