10 Oldest Mutants In X-Men History

Nightcrawler's father, Azazel, is a demonic-looking mutant with a slew of powers including teleportation, paralysis bolts, shapeshifting, and immortality. Because of his appearance, he was labeled as a demon by angelic-looking mutants called the Cheyarafim, causing him and his ilk to be banished to the Brimstone Dimension.

Although Azazel escaped using his teleportation powers, he learned he will is doomed to the Brimstone Dimension within a day or two. To escape from his imprisonment permanently, the scarlet-skinned mutant impregnated women, who then give birth to mutants with teleportation powers.

Using his own children as a conduit, Azazel eventually freed himself from his confinement to wreak havoc upon the world. The X-Men eventually cast him back into his hellish reality but it's only a matter of time before Azazel finds a way out.

Azazel claims to be the direct inspiration for demonic figures like Belial and Beelzebub, implying he predates Christ. He even claimed to have fought Mephisto himself to earn the title of 'Satan'. But because Azazel is a proven trickster, it's hard to tell how much truth is in his words, meaning we can't say for certain how old he is.