10 Times Batman And The Joker Saved Each Other

10. The Batman Who Laughs - Dark Nights: Metal

Created by Scott Synder and Greg Capullo, the Batman Who Laughs is a terrifying alternate version of Batman, and one dangerous enough to even cause the Joker to join forces with his arch-enemy in order to defeat. The Batman Who Laughs is essentially a version of Bruce Wayne from Earth-22 who killed his Joker in a fit of rage, getting infected with Joker Venom in the process. This causes Master Wayne to become unhinged, turning into a kind of monstrous amalgamation of the two storied enemies.

This makes some sense as something for writers to explore, given how it has often been asserted that they are so similar. After the unlikely duo finally manage to defeat the Batman Who Laughs, the regular Dark Knight comes close to replicating the very event that cause his alternate reality self to end up as the monster they have just defeated, beating his vanquished foe almost to death.

Alfred begs Bruce to stop, but only the Joker is able to put an end to his untethered rage, firing a non-lethal shot at Batman, rendering him unconscious, and saving him from himself in the process.