Editing Professor X (section)

===Ultimate Marvel===<!-- This section is linked from [[Galactus]] -->
In the ''[[Ultimate Marvel]]'' continuity, Professor Charles Xavier is the world's most powerful telepath, the founder and patron of the [[Ultimate X-Men|X-Men]] and a world-famous lecturer for [[pacifism]] and mutant [[political emancipation|emancipation]]. In contrast to his mainstream version, he is publicly open about his mutant status from the beginning and also has limited [[telekinetic]] abilities. He leaves his wife [[Moira MacTaggert#Ultimate Moira MacTaggert|Moira MacTaggert]], whom he collaborated with to create new therapies and [[surgery|surgical]] techniques for their mutant patients, and their sick son [[Legion (Marvel Comics)#Ultimate Marvel|David]] to pursue [[Ultimate Magneto|Magneto's]] dream of a mutant society,<ref>''Ultimate X-Men'' #17</ref> but Magneto turns on him, crippling him with a shard of metal through his spine.<ref>''Ultimate Origins'' #3</ref>

Xavier also repeatedly tampers with other people's minds to reach his goals, but he recognizes his flaws. In one instance, Xavier finds that Iceman has told a girl several secrets about the X-Men and is forced to erase the conversation from their minds. He generally believes that reading minds without permission is unacceptable, or so he leads his students to believe. In ''Ultimate X-Men'' #40, when Angel flies away, the Professor sends Storm after him because he telepathically knows that Angel is attracted to her. Similarly, Beast questions whether Xavier has made Storm love him.<ref>''Ultimate X-Men'' #47-48</ref>

In this timeline, his former love interests include [[Mystique (comics)#Ultimate Mystique|Mystique]] and [[Emma Frost#Ultimate Marvel|Emma Frost]]. In ''Ultimate X-Men'' #77, he tells Cyclops that he is in love with [[Ultimate Marvel Girl#Ultimate Jean Grey/Marvel Girl|Jean]]. He also has a pet cat which he has named "Mystique".<ref>''Ultimate X-Men'' #77</ref>

In ''Ultimate X-Men'' #78, Xavier is apparently killed by [[Cable (comics)#Ultimate Universe|Cable]] who was trying to prevent the horrible events in the future. In ''Ultimate X-Men'' #80 it is revealed that he is in fact alive, and a captive of Cable in the future. It has also been revealed that Cable has repaired his spine and is training Xavier to fight against [[Alternative versions of Apocalypse#Ultimate Apocalypse|Apocalypse]]. However, once the battle came, Jean Grey manifested as the Phoenix and destroyed Apocalypse. Jean returned everything back to normal, giving Xavier a "fresh start".  As she did so however, she undid the repair to his spine that Cable had performed, leaving him once again disabled.  Xavier reformed the X-Men upon return as the Headmaster of the Xavier Institute.{{Volume needed|c=y|date=February 2013}}

Soon after, Xavier left the school temporarily to aid Moira in some research on Muir Island. While he is away, the school is attacked by [[Alpha Flight]] whose mutant powers are enhanced by a drug called Banshee. Furthermore, it is revealed that Colossus has been using [[Banshee (character)|Banshee]] during his entire time at the Xavier's School to use his power without pain. Due to the sudden and apparently rampant use of the drug, Xavier and Jean begin screening all the students for traces of Banshee. However, it is later revealed the Banshee drug was created by Xavier himself, during his time in the Savage Land, and that it was created from Wolverine's blood. When Xavier tested Banshee, he was given powers that mimicked Wolverine's, including claws, enhanced senses, and a healing factor. Xavier and Magneto, however, deemed the drug too dangerous and stopped production of it.  When Wolverine discovered that he was the source of the drug and that Xavier was responsible for its initial creation, Wolverine attacked Muir Island. Xavier admits to creating the drug but denies that he is responsible for its continued creation and use. It is revealed then that Moira got hold of Xavier's research and began creating and selling the drug to finance Muir Island. Moira, who had used the drug to give herself a sonic scream, begins to do battle with Wolverine, and Xavier evacuates the children moments before the research facility explodes.<ref>''Ultimate X-Men'' #19</ref>

In the Ultimatum story arc, Charles informs all mutants that Magneto is behind the actions. Magneto confronts Charles, explaining that he believes that he shall act as God did to cleanse the world and usher in an era of mutant supremacy. When Charles states that Magneto is not God and that he will stop him as he always has in the past, Magneto then snaps Charles's neck, killing him.<ref>''Ultimatum #2''</ref>

He returned, revealed as Rogue's benefactor, secretly sending her on an undercover mission and stating that he does not want his former students to know about his plan. It is unconfirmed if this is truly Xavier, as both William Stryker, Alex Summers and Quicksilver have been seen talking to their supposedly dead loved ones, hinting at a foe mentally manipulating several characters. It was revealed to be the work of [[Mr. Sinister]], Apocalypse's disciple.<ref>''Ultimate Comics X-Men'' Vol 1 #12</ref>