If revealing he orchestrated The Killing Joke wasn't bad enough, Riddler also accuses Jim Gordon of sexual harassment (of his dead wife) in this preview of Batman: One Bad Day - The Riddler #1.

The Joker has had plenty of origin stories over the years, but while he shouldn't have just one, these are the three best.

Batman is having One Bad Day in a series of villain-focused one-shots, starting with Eddie Nygma, AKA the Riddler. And although Bruce Wayne has been playing cat and mouse games with this ...

The Joker tells many stories of how he got his scars in The Dark Knight, but the film never confirms which one, if any of them, is true.

One dip in a vat of chemicals later, his skin and hair are bleached and the Joker we all know is born. But what became of the clown prince of crime after his one bad day?

One of the greatest villains in the world of DC and even the history of comic books is the Joker due to how insane and crazy ...

If The Killing Joke was about showing the "one bad day" that broke the Joker, then this appears to be about following him in the many less bad but still not exactly great days that follow.

Director Todd Phillips has teased the start of production on "Joker: Folie à Deux," releasing an image of Joaquin Phoenix in character.

In Batman: The Killing Joke (1988), he says: “I’ve demonstrated there’s no difference between me and everyone else! All it takes is one bad day to reduce the sanest man alive to lunacy.

“The reviews are not saying it’s bad, but everyone is leaving early. What the f–k is this?” one critic said.