Apocalypse (En Sabah Nur) is a fictional supervillain in the Marvel Comics Universe. One of the foremost and most powerful enemies of the superhero group the X-Men, he first fully appeared in X-Factor #6 (June 1986), created by Jackson Guice and Louise Simonson. Apocalypse has a longstanding association with many X-Men characters, and has played vital roles in 1990s-era “event” storylines “The Age of Apocalypse” and “The Twelve.” He is believed to be the earliest known mutant, although some argue that (Selene) is the first mutant as she was born in mid-30th century BC Egypt. Apocalypse however existed before the age of time.
After coming to mutant power, Apocalypse appears as a death god in several ancient mythologies. However, he has been most active in the late 20th and early 21st centuries AD when mutants became a sizable part of the human population. He sees this as an age to implement his extreme Social Darwinist eugenic philosophy: only the fittest have the right to survive — and he gets to define who is fittest. He is most often accompanied by four servants, the Four Horsemen of Apocalypse, a nod to the Horsemen of the Book of Revelation, and named after each.
Apocalypse is one of the most powerful mutants in the Marvel Universe, possessessing a multitude of superhuman abilities, including virtual immortality, almost unsurpassed strength, invulnerability, and the ability to both shift and alter his mass and form. He was bonded with Celestial technology, increasing all of his mutant powers, as well granting him energy manipulative abilities.
He has featured prominently in the 1990s X-Men animated series, its successor X-Men: Evolution and the video games X-Men Legends II: Rise of Apocalypse, and "X-Men: Reign of Apocalypse".