- Perhaps you're looking for another Joker?
He has no superpowers, but has the unrivaled ability to make his enemies laugh, as well as possessing a great intellect and intuition. He obtained this ability after he had been pushed into a vat of chemicals by Bruce Wayne, also known as the villain Batman.
Batman is the Joker's arch enemy, and a madman that dresses up like a bat. Of all his enemies, Batman is the only one that Joker hasn't been able to make laugh.