6) He’s Faced Punisher, Judge Dredd, Scooby Doo And More
Being such a popular breakout character and given the proliferation of comic book crossovers, the Joker has teamed up with and fought various unlikely characters over the years.
Some of the non-DC properties he’s crossed paths with include Judge Dredd, Scooby Doo (in cartoon form and comic books) and even a face-hugging Xenomorph. A memorable one was the time he went up against the Punisher. Unlike Batman, Frank Castle had no qualms about killing the Joker and would have, too – if it wasn’t for that meddling Caped Crusader.
Joker has also teamed up with some crossover characters. In the Amalgam comics universe that mixed DC and Marvel characters, Joker became Hyena – a blend of him and Sabretooth who fought Dark Claw AKA Batman/Wolverine. He’s also joined forces with Carnage and even worn the Mask (you know, the one from the Jim Carrey movie).