Batman / Batman Joker

Are the Joker and Batman Brothers?

The relationship between the Joker and Batman has been a topic of discussion among fans for decades. Some believe that the two are brothers, while others think it’s just a fan theory with no solid evidence to back it up. In this article, we’ll explore the evidence and theories surrounding this idea.

Origin Stories

Batman and the Joker have vastly different origin stories. Bruce Wayne, a billionaire playboy, witnessed his parents’ murder as a child and swore to fight crime in their honor.

On the other hand, the Joker’s past is shrouded in mystery. In some versions, he was a failed comedian who fell into a vat of chemicals that bleached his skin and turned his hair green. In others, he was an ordinary man who went insane after a tragic event.

The Killing Joke

One of the most popular pieces of evidence supporting the theory that Batman and the Joker are brothers comes from “The Killing Joke,” a graphic novel by Alan Moore and Brian Bolland. In this story, the Joker tells Batman that they are more alike than he realizes.

“Sometimes I remember it one way, sometimes another..if I’m going to have a past, I prefer it to be multiple choice!” – The Joker

Some fans believe that this line implies that Batman and the Joker share more than just their similarities in terms of being vigilantes. They believe that they might share some sort of familial connection.

The Court of Owls

Another piece of evidence comes from Scott Snyder’s “Batman” series. In issue #13, Batman discovers that his family has been involved in Gotham City’s secret society called The Court of Owls for centuries. This discovery leads him on a journey to discover more about his family history.

During this storyline, there is a panel where Batman is shown sitting at a table with several members of The Court of Owls. One of the members is a man with a striking resemblance to the Joker. While this is not definitive proof that they are related, it adds fuel to the fire.

Counter Arguments

While there is evidence to support the idea that Batman and the Joker are brothers, there are also arguments against it. One of the most compelling is that it would undermine their entire relationship.

Batman and the Joker have always been portrayed as polar opposites. Batman represents justice and order, while the Joker represents chaos and anarchy. If they were brothers, it would take away from their dynamic as enemies.


In conclusion, while there is evidence to support the theory that Batman and the Joker are brothers, it’s not definitive proof. Both sides of the argument have valid points, but ultimately it’s up to interpretation.

Regardless of whether or not they share a familial connection, one thing is for sure: Batman and the Joker will continue to be one of pop culture’s greatest rivalries.