7 Pieces Of Evidence That May Confirm The Joker Used To Be Robin

3. "J" Is For Jason?

Does that "J" stand for "Joker" or "Jason"? Because of the events of The Dark Knight Strikes Again, I would lean towards this Joker being Dick Grayson instead of Jason Todd, but there are a long list of reasons for the villain's real identity being the latter. For starters, it would make sense that Jason - who Batman believed to be dead - would adopt The Joker identity because that too is something he's done in the comics. While he didn't become The Joker, he did take on the mantle of the Red Hood (The Joker's original identity), an unhinged vigilante who mentally tortured Batman and murdered the criminals of Gotham City in cold blood. What's to say in this world he didn't take things one step further by actually becoming him? Going back to that tattoo and another sign that it could have some extra meaning is Batman: Arkham Knight. In that, The Joker makes Batman believe his old sidekick is dead and tortured him until he became the villainous Arkham Knight. He also brands his face with a "J"; could Jason have that tattoo to remind him of his old self or because the villain - who would have the last laugh on Batman by transforming his sidekick into him - put it there? Either one would work. The video game and movie were developed at the same time, so it's not like one is necessarily borrowing from the other, but there's nothing to say they couldn't have had the same idea or that Warner Bros. didn't want to test this approach out on fans before committing to it on the big screen...