Red Death (DC)

"My name is Bruce Wayne. I am vengeance. I am justice. I am Batman: the Red Death."

- Red Death

The Red Death is a villainous version of Batman from the DC Comics universe. He is a member of the Dark Knights, a group of vigilantes from the Dark Mutiverse whose goal is to assist the deity Barbatos plunge the central DC Multiverse into darkness.

Origin
The Batman of Earth -52 once fought crime with the help of his sidekick Robin. Unfortunately, as time went on, many different Robins lost their lives during various missions with the Caped Crusader, which drove him to adopt more extreme methods towards crime-fighting.

When Earth -52 was on the verge of destruction, Batman, using the weapons of the Rogues (Captain Cold's freeze ray, Heat Wave's heat gun, Mirror Master's mirror gun and Weather Wizard's wand) fights the Flash, who had refused to give him Speed Force powers.

After knocking Flash out, Batman chains him to the hood of the Batmobile (which he had modified using the designs of the Cosmic Treadmill) and drives him and Flash into the Speed Force.

As a result, Batman and Flash are forcibly fused together into one being, with Bruce gaining Flash’s powers and a corrupt connection to the Speed Force while Barry’s consciousness became trapped inside Bruce’s body.

With his new abilities, Batman quickly murdered his own rogues gallery, although realized he was still too late to save his world from destruction. Bruce is then visited by The Batman Who Laughs, who tells him that he can still save his world by joining Barbatos’ Dark Knights and aiding the deity in conquering a Multiverse above their own. Batman accepted his counterpart’s offer and became known among the group as The Red Death.