Anna Daniels
Charles Xavier’s family includes some of the most powerful and dangerous people on Earth, and in at least one case, he’s been fighting them literally before he was born. When Xavier is conceived, he’s one in a pair of twins. Even in the womb, he senses his twin is an inherently malevolent presence, and he uses his still budding psychic abilities to cause a miscarriage. Astonishingly, the twin survives and grows into the powerful telepath and villain Cassandra Nova.
Another sibling, though not blood-related, gets power of a different kind. Xavier’s father dies while the mutant is still young, and his mother remarries Dr. Kurt Marko. Dr. Marko’s son, Cain, bullies Charles relentlessly. Later, the stepbrothers serve together in the Korean War. When Cain goes AWOL, he finds a ruby in a cave that transforms him into the unstoppable Juggernaut. Marko proves to be one of the most physically powerful villains in Marvel, able to go toe-to-toe and even defeat powerhouses like Thor and the Hulk.
And there’s the matter of his kid. Around the same time Charles first meets Erik Lehnsherr (the future Magneto), he falls in love with an Israeli woman named Gabrielle Haller, though they split up when Xavier leaves Israel. Years later, he discovers he has a son by Haller — David, aka Legion. While Legion couldn’t be called evil, the combination of his powerful mutant abilities, his mental instability, and his hundreds of split personalities tend to cause some unintended chaos.
Written by: Looper
