Professor X

NAME Prof. Charles Francis Xavier CURRENT ALIAS Professor X ALIASES Codenames:

X[1] Nicknames: Bald Phoenix,[2] Baldy,[3] Charlie,[4] Charley,[5] Charley-Boy,[6] Chuck,[5] Cue Ball,[7] Proffy[8]

AFFILIATION Formerly Orchis, Crew of No-Place X, Quiet Council of Krakoa, X-Men (founder and former leader), Illuminati, Genoshan Excalibur, Brotherhood of Evil Mutants (leader), Cadre K, Starjammers, Mutant Underground, Project Chimera, The Twelve, New Mutants (founder, teacher & leader), United States Army, X-Corporation (founder and leader) RELATIVES Ancestors: Jonas Graymalkin (paternal collateral ancestor) Charles Graymalkin (paternal ancestor, deceased) Marcia Graymalkin (paternal ancestor, deceased) Jurgen Shields (maternal ancestor, deceased)[17] Aline Fischer (maternal ancestor, deceased)[17] Grandparents:

Benedict Xavier (grandfather, deceased)[18] Parents:

Dr. Brian Xavier (father, deceased) Sharon Xavier-Marko (mother, deceased) Dr. Kurt Marko (maternal stepfather, deceased) Siblings:

Cassandra Nova (twin sister) Cain Marko (maternal stepbrother) Spouses:

Lilandra Neramani (ex-wife, marriage annulled)[19] Children:

David Haller (son) Xandra Neramani (daughter)[20] Charles Xavier II (son) Family-in-Law:

Cal'syee Neramani (former sister-in-law) D'ken Neramani (former brother-in-law, deceased) Shi'ar Royal Family (former family-in-law) HOST OF Phoenix Force (formerly) MARITAL STATUS Single (Marriage annulled)[19]

GENDER Male HEIGHT 6′ (1.83 m) WEIGHT 190 lbs (86.18 kg) EYES Irises:

Blue HAIR Blond, Bald (in original body) (formerly)

ORIGIN Mutant Avian[21] LIVING STATUS Alive; formerly deceased REALITY Earth-616 PLACE OF BIRTH New York City, New York PLACE OF DEATH Utopia, San Francisco Bay (first death) Krakoa, Pacific Ocean (second death) Terra Verde (third death) CAUSE OF DEATH

Killed by Dr. Doom with the Beyonder's power[22] (revived in Battleworld's medical chambers)[23] Killed by Phoenix[24] (revived by Phoenix)[24] Killed by a Phoenix-possessed Cyclops[25] (mind transferred to Fantomex's body)[1] Killed by XENO[26] (resurrected by “The Five”)[27] Killed by Nimrod[28] (resurrected by “The Five”)[28] Vaporized by Legion and the Zorn twins[29] (resurrected by “The Five”)[30] Killed by Themex[31] (resurrected by “The Five”)[32] Killed by Mr. Sinister[33] (resurrected by “The Five”)[34]

IDENTITY Public CITIZENSHIP American, Krakoan OCCUPATION X-Corp liaison, adventurer, mutant leader, mutant rights activist, geneticist; former headmaster, teacher, heir, soldier (US Army) EDUCATION Ph.Ds. in Genetics, Biophysics, Psychology, Anthropology and Psychiatry at Oxford University and Columbia University.[35] Undergraduate studies were conducted at Harvard University, where he graduated with honors at the age of 16.[11] BASE OF OPERATIONS House of X, Krakoa, Pacific Ocean Formerly Utopia, San Francisco Bay, California; Genosha; Xavier Institute, Salem Center, North Salem, Westchester County, New York; Imperial Palace, Chandilar, Shi'ar Empire; Columbia University, Manhattan, New York City, New York

Prof. Charles Xavier is a mutant gifted with complex telepathic powers, being a specialist in mutant biology and sociology and the founder of the uncanny X-Men as Professor X.[36] With immense support from Dr. Moira MacTaggert, his life has become dedicated to fulfilling a dream of mutants and humans coexisting peacefully.[37][38][39] As a young man, he traveled around the world to better comprehend mutantkind, meeting a dear friend and ruthless rival, the man who would become known as Magneto.[40]

After becoming paraplegic following a conflict against the villain Lucifer in the Himalayas,[41] Xavier transformed his family's ancestral home into the Xavier's School for Gifted Youngsters, a sanctuary for mutants to train and learn about their abilities.[42] Under his supervision, Professor X's students formed the first X-Men, a group who fights for a world that hates and fears them, guided by Xavier's dream. Through the years, Xavier and his X-Men found themselves at odds with both humans and mutants with diverging ideologies, especially Magneto, who believed in mutant supremacy.[36] In different situations, Xavier demonstrated to be a shadowy figure, hiding secrets to achieve his goals.[43][44][45][46]

In order to ensure the survival of mutantkind, Xavier eventually assumed a harsher stance on the mutant-human conflict. Influenced by Moira and assisted by Magneto, he established a mutant nation on the living island of Krakoa, granting citizenship to all mutantkind. As a head of state of the mutant nation, Professor X he became responsible for a much larger community than solely the X-Men, which comprises thousands of mutants.[47] However, the species war prevailed, causing Krakoa to collapse.[48] Following a series of convoluted schemes and machinations,[46] Xavier sacrificed his own reputation and credibility to eliminate enemies of mutantkind. However, as a consequence, he was placed under arrest in a catatonic state, ironically being held in the Graymalkin Prison, which was erected over the ruins of his former school.[49] And now Professor X is Confirmed to be An Omega Level Mutant.

Charles Xavier was the mutant son of a wealthy nuclear researcher, Dr. Brian Xavier, and his wife, Sharon.[50] The Nuclear Research Facility where Dr. Xavier worked in Alamogordo, New Mexico[36] was actually a cover for the study of genetic mutations,[51] secretly run by Dr. Nathan Milbury, which was one of Mister Sinister's many aliases.[16] Charles was born minutes after his twin sister, who was declared a stillborn.[52] While still in his mother's womb, Charles was harmed by his twin, who was in fact an evil presence. Having preventively attacked her with his emerging psychic abilities, he caused a miscarriage. The truth about this event was not exposed.[53] Since a very young age, Charles was subjected to Mister Sinister's experiments, alongside Carter Ryking, his best friend and son of one of Dr. Xavier's colleagues, Dr. Alexander Ryking.[54][55] When Charles was nine, Dr. Xavier died in an accident in Alamogordo, and the project was deactivated.[50][54] Sharon Xavier moved to their ancestral mansion in Westchester after marrying her late husband's ex-colleague, Dr. Kurt Marko, in hopes of maintaining a well-structured family for Charles. However, Dr. Marko had married her for her wealth and due to being jealous of Dr. Xavier,[50] though it might also have been due to Mister Sinister's machinations, as a way to keep Charles under his watch through Marko.[56] Charles faced problems with his new family when Marko brought his teenage son, Cain Marko to live in the mansion, since Cain constantly bullied Charles. To make matters worse, Dr. Marko violently abused Sharon. With his growing telepathic powers, Charles attempted to alleviate her pain by sharing it. However, Charles could not prevent his mother's ruin, as she succumbed to alcoholism and died of a broken heart.[50][42][56]

When Cain attempted to extort money from Dr. Marko by accusing him of murdering Dr. Xavier, a fight erupted between father and son, causing some of Dr. Marko's lab equipment to explode. Dr. Marko was mortally wounded but managed to drag the two children to safety before dying, begging forgiveness for not saving Dr. Xavier when he had the chance and telling Charles to keep his powers secret from Cain. From then on, the orphans Xavier and Marko lived as enemies under the same roof as Xavier realized the potential of his mutant powers. Due to his telepathy, which gradually cost him his hair, Xavier excelled in most activities he engaged in, causing Marko's jealousy to escalate to the point he provoked Xavier into a car crash, badly injuring him and making him part ways with his step-brother.[50] A brilliant student, throughout his educational career Xavier attended Harvard University in his early teens graduating when he was sixteen years old.[11]

Intent on undertaking graduate studies, Xavier won a scholarship to England's Oxford University, to gain his Ph.Ds. in Genetics and Biophysics. Studying the consequences of genetic mutations in society, Xavier dreamt of peaceful coexistence between mutants and humans.[57] During a fair in Oxford, he was approached by Moira Kinross, who questioned his wonderful dream for the future of mutants. As Xavier established telepathic contact by her request, she revealed herself to be a mutant with resurrection powers who had lived several lives, knowing Xavier in many of them. Completely crushed by the experience, Xavier was left thunderstruck by the revelation that despite his best efforts, mutantkind would always lose. In her tenth and tentatively last life cycle, Moira declared they must break all rules and unite mutantkind.[39][58] In Moira, Xavier had found an academic peer with whom he could openly discuss his ideas and plans. He was put into contact with her advisor, a revolutionary geneticist at Oxford, without knowing his true identity as Mister Sinister.[11] Moreover, Moira was romantically involved with lance corporal Joe MacTaggert. However, after Xavier rescued Moira from the wrecks of a car accident caused by MacTaggert, the two geniuses fell in love.[38]

Around this period, Xavier was confronted on campus by two mutants named Logan and Victor Creed who, upon learning that the American government was actively imprisoning mutants, were seeking to band mutants together in a common group. Xavier flat out turned Logan and Creed down.[59] At some point in his life, Xavier also worked alongside Karl Lykos, a fellow scholar who was interested in mutation.[60]

After experiencing the happiest period of his life following his engagement to Moira, Xavier was drafted and sent to Korea.[37] In the Korean War, Xavier and his step-brother Cain Marko served in the same unit. Attempting to bring back the deserting Marko, Xavier witnessed Marko discovering a mystical ruby in the Temple of Cyttorak that transformed him into the unstoppable Juggernaut. Just then, enemy high explosive bombardment caused a cave-in and Marko was buried under several thousand tons of rock.[50] Xavier also served alongside Carmen Pryde on search and rescue missions, where he earned the nickname "the Good Shepherd," as he secretly used his telepathic abilities to search for people in need.[11] Xavier survived the war and, while he recovered from his battlefield wounds, he received a letter from Moira announcing their engagement's end.[37]

After his failed engagement, Xavier traveled abroad, bumming around the Mediterranean, eventually settling in the island of Kirinos, where he found himself helping people, a therapeutic experience for him. From Kirinos, Xavier moved on to Cairo, Egypt, where in the city's main bazaar, he was pickpocketed by a young girl thief. While trying to establish contact with her, Xavier was smashed down by a powerful psychic attack, leading him to a nearby saloon. There, he met and battled Amahl Farouk, the Shadow King, the first malicious mutant he had ever met. After defeating his foe, Xavier realized how deadly mutant powers could be in the wrong hands. This spurred Xavier towards what would become his life's work as he decided to bring mankind and its mutant children together in peace and harmony, aiming to protect humanity from evil mutants and innocent mutants from human oppression, believing that both could peacefully coexist.[37]

Xavier next went to the seaport city of Haifa, Israel, to meet with an old friend of his, the head of a clinic for traumatized Holocaust victims, psychiatrist Daniel Shomron. One of Shomron's worst cases was the catatonic Gabrielle Haller, who Xavier awoke by secretly using his telepathy and eventually fell in love with.[40] As part of Moira's plans, it was implied that she and Xavier had hatched the idea for conceiving specially powerful mutants on purpose. Moira used her experience as a geneticist to identify potential matches for her and Xavier that might result in the birth of such so-called Omega-Level individuals. It is probable that both Joe MacTaggert and Gabrielle Haller were purposefully sought out with this intent.[58]

Helping at the clinic, Xavier also became friends with a man known as Magnus, a volunteer who was a survivor of Auschwitz. Over the weeks that followed, Xavier and Magnus debated hypothetical scenarios regarding what would happen if humanity was faced with a new super-powered race of humans, with Xavier unaware that Magnus himself was also a mutant. While Xavier was optimistic, Magnus' experiences in the Holocaust led him to believe that humanity would ultimately oppress the new race, as they had done with other minorities. The two friends ultimately revealed their powers to each other when they fought Nazi Baron von Strucker, and his Hydra agents, who had kidnapped Gabrielle Haller since she knew the location of their secret cache of gold. Magnus attempted to kill von Strucker, but Xavier stopped him. Realizing that his and Xavier's views on mutant-human relations were incompatible, Magnus left with the gold. Xavier stayed in Israel for some time before he and Haller separated on good terms.[40]

Xavier went in search for other mutants like himself. Still relying only on his powers and rumours, he finally made contact with another mutant; Prince Namor of Atlantis. Xavier revealed Namor's mutant heritage to the prince and convinced him to help him search for others of their kind. The pair had little luck, and Xavier was often forced to use his telepathy to temper Namor's rage, as the prince was still haunted by his experiences in World War II. After a misadventure with an escaped mutant named Tim Rhodes, Xavier tried to force Namor to face his past in an effort to finally mend his psyche. Xavier's attempt backfired, further shattering Namor's mind and leaving Xavier to wander alone once more.[61] At some point, following years of distinguished experiences, Xavier reunited with Moira to discuss the possibility of using her research results to help his crusade of guiding mutants. Her initial reaction was opposing to his proposition, claiming his hubris could cloud his

potential for corruption.[12]

During his journeys, Xavier became fascinated by a mysterious, unexplored walled city in the Himalayas, which he managed to infiltrate with his mental powers. There, he encountered an alien named Lucifer, the advance scout for an invasion. Xavier foiled his plans by inciting a rebellion. In retaliation, Lucifer dropped a huge stone block on Xavier, leaving him trapped.[41] Xavier was found and freed by a young mutant rebel who had heard his telepathic cries for help.[62] He was airlifted to Bombay, India. Unfortunately, the rock had permanently damaged his legs, rendering them unusable. During his recovery, as he fell into a deep depression due to losing the use of his legs, he was treated by Amelia Voght, a young American nurse, who made cheering him up her pet project. The two soon fell in love. While living in an apartment together in Bombay, Amelia found Xavier's notes on a device called Cerebro, that could detect mutants. Voght confronted Xavier, believing he had approached her as an experiment, since she was secretly a mutant herself. Realizing that he too was a mutant as he spoke to her telepathically, the couple grew even closer, and Xavier continued his plans with Voght by his side.[42]

Returning to America, Professor Xavier put himself into contact with various mutants, trying to help them control their powers. One of his pupils was the young Jean Grey, who had been under his supervision after her powers traumatically awakened as she telepathically experienced the emotions of a dying friend.[63] He also secretly trained the young girl who rescued him in the Himalayas as a spy, forging an identity for her as "Tessa," in order for her to work as a secretary for Sebastian Shaw, a wealthy mutant industrialist.[64] Xavier also helped a young mutant named Jamie Madrox, by keeping contact with his parents and providing them with resources to help the child keep his mutant abilities under control.[65]

Having collected data on various mutants whose gifts had manifested, Professor Xavier shared with Moira his intentions of creating a task force to train and prepare mutants to carry on his dream.[66] To this end, he formed an alliance with Fred Duncan, an FBI agent investigating the growing number of mutants. Xavier shared with Duncan his plan to locate young mutants and enroll them in his School for Gifted Youngsters, using his ancestral mansion home as a base to train them to use their powers, as well as provide them conventional educations, for humanity's benefit.[67] Vought stayed with Professor Xavier, partially because she loved him, but also to convince him to give up what she felt were nonsensical ideas.[42] Expecting the public return of his old friend, Xavier, accompanied by Voght, decided to meet with Magnus, who had revamped himself as the costumed terrorist Magneto, now sporting a helmet to shield him from telepathy. Xavier unsuccessfully pleaded with Magneto that the path of mutant supremacy would lead to results no different from what he had suffered during his childhood. As both men reminded each other that they had the power to destroy one another, Magneto left, with Professor Xavier hoping that he would see the error in his ways.[68]

Professor X had to deal with a menace by his own, Lucifer, and left the X-Men under Cyclops' leadership.[76] As Xavier located Lucifer's hidden cave in Europe, he alerted his X-Men. As the X-Men traveled to help him, they were followed by the Avengers, who agreed to give the X-Men a chance to prove their might against the villain. With the diabolical Lucifer defeated, Xavier returned to his X-Men[77] and guided the team in investigating the mysterious Savage Land[78] and confronting the malignant Stranger.[79] A ghost from Xavier's past unexpectedly returned when his step-brother, Cain Marko, after years of being imprisoned in the ruins of the Korean temple where Xavier had last saw him, attacked Xavier's School as the unstoppable Juggernaut. Immune to Xavier's telepathy due to his helmet, Juggernaut was attacked by the X-Men and the Human Torch, who managed to remove the helmet, allowing Xavier to knock him out and arrest him.[80]

A new threat emerged for mutantkind in the form of the anti-mutant activist, Bolivar Trask. Xavier proposed a debate against Trask to be broadcasted on TV as a way to counterattack his attempts of elevating anti-mutant hysteria. During the debate, Xavier was introduced to the Sentinels, robots created by Trask to defend humanity against mutants. However, the Sentinels rebelled against Trask's orders and captured him. Xavier led his X-Men to rescue Trask and eliminate the Sentinel-creating machine, the Master Mold. Xavier worked with the police to destroy the Sentinel base, and with the X-Men's actions and Trask's sacrifice, the menace was over for the moment.[81] During the crisis with the Master Mold, Magneto invaded the X-Mansion and incapacitated the X-Men upon their return.[82] Trapped in a floating gondola with his students, Professor X coordinated his X-Men to escape and summoned the Stranger to scare Magneto off.[83]

Lucifer resurfaced for a third time, seeking revenge against Professor X and planning to invade the whole world under his master's orders. He manipulated Blob and Unus into masquerading as members of the X-Men to ruin their reputation and orchestrated a direct mental attack against Xavier.[41] As the X-Men went to Lucifer's hidden base, Xavier was captured by his enemy's automatons and learned about his plans of operating the Dominus, a world-level brainwashing machine. After the X-Men destroyed Lucifer's robots, foiling his plans, his furious master cast him into an eternal exile, and Professor Xavier was finally free of him.[84]

After training them for several years, Professor Xavier went underground, hiding from all of his original students save Jean, to prepare for the invasion of the alien Z'nox. He was aided by the reformed and dying villain, Changeling, who posed as him after receiving a portion of his telepathic power. The X-Men disbanded after "Xavier" was killed by Grotesk and Professor Xavier left all of his belongings to Scott. The real Professor Xavier returned with Havok and Lorna Dane to stop the invasion of the Z'Nox. Prof. Xavier probed every human mind on the planet and was left in a weakened state, but was revived using a device created by Bruce Banner.[85]

Shortly after the Kree-Skrull War, Tony Stark called a meeting of some of the world's most influential superhuman figures; himself, Black Panther, Prince Namor, Doctor Strange, Reed Richards, Black Bolt, and Xavier. Stark felt that the Kree-Skrull war had shown the importance of uniting the Earth's disparate superhuman communities, in order to better defend the planet. The group discussed how best to do this, and eventually settled on a secret council, where they would convene to discuss potential threats and how best to tackle them. Black Panther declined the invitation, believing they were wrong to take the fate of the Earth into their own hands, but agreed to keep their secret.[86]

Throughout the years, Xavier and the Illuminati covertly handled many crises. While they were instrumental in averting catastrophes, their actions would also endanger the world on many occasions. Xavier raised the group's first issue; the island of Krakoa.[87][86]

Years later, when most of his original students were captured by the mutant island Krakoa, Professor Xavier sent another team comprised of Dr. MacTaggert's students, Kid Vulcan (who was Cyclops' unknown brother), Petra, Darwin, and Sway, all of whom he gave quick, mental combat experience, to rescue his original students. Professor Xavier also approached Emma Frost, to be the team's telepath, but she refused, and the Professor erased the event from her memory. After the team freed Cyclops and Kid Vulcan revealed their connection, the entire team was seemingly killed. Cyclops escaped, but, when he made it back to Professor Xavier, the Professor wiped the traumatizing knowledge that his new-found brother had died saving him from Cyclops' memories, believing Cyclops could not carry on with the burden of this knowledge. Professor Xavier assembled another team of X-Men, including Banshee (former Factor Three operative), Colossus, Nightcrawler, Storm, Sunfire, Thunderbird, and Wolverine to rescue the others on Krakoa, never revealing anything about Dr. MacTaggert's students. The mission was successful, and the team stayed together, save for Sunfire.[88]

Their next mission was to stop Count Nefaria and his Ani-Men, during which Thunderbird was killed attempting to stop Count Nefaria's escape.[89] The team went on to battle Kierrok[90] and Professor Xavier was captured by Stephen Lang's Sentinels and taken to his space station, where his X-Men rescued him.[91] After, Professor Xavier stayed with an injured Jean in the hospital, after she had piloted the shuttle back to Earth and declared herself the Phoenix.[92] At this time, Professor X had somehow also acquired a RS-150 Blackbird from S.H.I.E.L.D., as the X-Men's new transportation.[93] Lilandra Neramani, princess of the alien Shi'ar race managed to establish an intense psychic bond with Xavier across the vast distance that separated their two planets. She came to Earth to implore Prof. Xavier for his help against her

mad, tyrannical brother, D'Ken Neramani, and he instantly, aided her by deploying his X-Men.[94][95] They journeyed to the M'kraan Crystal's homeworld to battle the Shi'ar Imperial Guard.[96]

After briefly battling Weapon Alpha,[97] and, later, Warhawk,[98] Phoenix returned from the Savage Land to tell Professor X that all the X-Men were dead.[99] Prof. Xavier shut down the school and traveled with Lilandra to her kingdom, where she was crowned Empress. They fell in love, and, for a time, Professor Xavier lived on Chandilar, the Shi'ar throneworld, as Lilandra's consort.[37][100][101]

Prof. Xavier returned to Earth and resumed his position at the school. Professor X then located Kitty Pryde with Cerebro. Professor Xavier and three of the X-Men (Colossus, Storm, and Wolverine) set out for Deerfield, Illinois to contact her and possibly recruit her as a member of the X-Men. Unknown to Prof. Xavier, the mercenary, Warhawk, had planted a device that enabled his employers in the Inner Circle of the Hellfire Club to monitor Cerebro's activities. The Inner Circle, thus, also learned about Kitty, and one of its leaders, Emma, now the White Queen, also went to contact her.[102] The X-Men then went on to battle the Hellfire Club while attempting to recruit Dazzler.[103] When trying to understand the motives of the Hellfire Club, Angel set-up an invite to a Hellfire Club party, where the Phoenix fell under Mastermind and the Hellfire Club's control and transformed into the Black Queen.[104] After the X-Men battled the Hellfire Club's Inner Circle, Phoenix underwent another transformation into the Dark Phoenix and soared through the universe, where she devoured an entire star and the five billion inhabitants of one of its planets.[105] When Phoenix returned to Earth, she threatened to kill everyone, but Professor X was able to keep Phoenix under control and helped her will herself back to normal. The X-Men were then teleported away by the Shi'ar.[106] The Shi'ar Empire had

witnessed Dark Phoenix consuming the star, so Professor Xavier had no other choice but to challenge the Shi'ar Imperial Guard to a duel over the fate of the Phoenix. The battle triggered her transformation into Dark Phoenix once more and she understood that she would never be able to fully control the dark hunger inside and sacrificed herself on the Moon.[107][108]

At some point, Xavier and Moira visited Magneto on Island M. Xavier shared Moira's memories of her previous lives with Magneto, revealing to him that mutantkind was doomed to failure. Despite his initial mistrust, Magneto agreed with Xavier and Moira's proposal and joined them in their long-term plan for the survival of the mutant race.[109] Without Moira's knowing, both Xavier and Magneto then travelled to Bar Sinister to meet Mister Sinister, asking him for his help regarding the genetic collection of mutant DNA that he had acquired over the years. Mister Sinister wasn't interested in the deal but was suddenly killed by another Sinister who was enticed by the proposal since he himself possessed a functional X-Gene (Thunderbird's). Sinister agreed to the compromise but ended up having his memories of the encounter repressed so he would be sent on his course without knowing Xavier and Magneto's involvement until the day they prompted him to remember.[110]

The team went on to battle the Sentinels and during a coupe, first met the alien Brood and battled Deathbird and Admiral Samédàr to restore Lilandra to the Shi'ar throne, where Prof. Xavier was sent into a coma.[111] Unknown to anyone, Professor X had been implanted with a Brood Queen egg at the time.[112] Professor X woke from his coma to learn that his X-Men and Lilandra had left him. Around this time, Professor X aided Spider-Man in battling Mentallo and was unable to rebuild Anthony Power's son, Matthew's, comatose mind.[113] Professor Xavier was able to help Dr. Lykos, who had been trapped as Sauron. Professor X found that Dr. Lykos was infected with a genetic virus that mutated him and isolated the alien element in his DNA matrix, which cured him.[114]

After a call from Reed Richards about a powerful, young mutant whose powers were out of control and with encouragement by Dr. MacTaggert, Prof. Xavier took Xuân Cao Mạnh to his mansion and Dr. MacTaggert also brought her foster daughter, Rahne Sinclair. Donald Pierce was determined to kill Prof. Xavier, as well as other superhuman mutants and had Danielle Moonstar's grandfather, Black Eagle, murdered. Prof. Xavier and the girls went to Moonstar's aid. After Dani joined the others rescued Roberto Da Costa and Samuel Guthrie. After being captured by Pierce, the youths rescued Professor X and he decided to take on a new class of mutant students whom he aptly named the New Mutants.[115]

Professor Xavier also employed a small staff to help with the raising of the students, beginning with the human Stevie Hunter, and Xi'an, as the school's secretary. Professor Xavier initially had brought the team together to use as embryos as the Brood Queen was beginning to exert its influence over him. After mysteriously trapping Psyche in the Danger Room, Professor X used her powers to attack the New Mutants.[116]

The X-Men returned from space with the knowledge that Professor X had been infected with an embryo and the Brood Queen revealed herself by transforming him. The mind of Professor Xavier asserted long enough to ask Cyclops to kill him, but Cyclops refused. Dr. MacTaggert and the X-Men's space-faring allies, the Starjammers, saved Prof. Xavier by transferring his mind into a newly cloned, somewhat younger body with functional legs. The experience made Professor Xavier feel like a "whole man", but his legs still had trouble working.[117]

After Professor X had a televised debate with Reverend William Stryker, he, Scott, and Ororo were kidnapped by the Purifiers. While in captivity, Professor X was hooked to a machine operated by Dr. Phillip Ramsey, attempting to turn him against mutants with illusions of the X-Men killing him and Reverend Stryker saving him. After Professor X was brainwashed, he fired mental bolts at Scott and Ororo, seemingly killing them. Stryker had him taken to Madison Square Garden, where he was attached to a machine that, using his brainpower, would kill all living mutants. Magneto, with his psi-shielded helmet, was able to distract the Professor enough for the X-Men to destroy the machine. Later at the mansion, Xavier admitted that Magneto had been right about humanity and began to accept his offer to join him until Scott stopped him and stated that he believed in the Professor's dream and would fight to see it come true. Professor X returned to his senses and declined Magneto's offer. Magneto left, calling them fools.[118]

At the return of the X-Men, Professor Xavier, initially, demoted Kitty Pryde (Sprite) to the New Mutants, an act that enraged her, until Kitty impressed him by defeating two Sidri, with the help of Lockheed.[119] While attending a fair the New Mutants were attacked by Viper and the Silver Samurai and Psyche was kidnapped. Professor Xavier decided to aid Team America and the New Mutants left without his permission to save Dani. Xi'an was lost to the New Mutants in an explosion. Sensing the Shadow King in Xi'an's disappearance, Professor Xavier ordered the New Mutants to take a vacation.[120]

Mutant terrorist Rogue came to Professor Xavier asking for help controlling her powers, which had caused her to absorb Carol Danvers' personality. Professor Xavier accepted her into his school and the X-Men, even after all the X-Men and Danvers herself stated they would quit if she was admitted. Eventually, the team reluctantly agreed. Professor Xavier and Lilandra continuously tried to understand why he felt intense pain every time he would attempt to walk, and she stated that she would soon have to leave to stop her sister from starting a war in her kingdom. After battling Mastermind again Professor Xavier hosted Cyclops' marriage to Madelyne Pryor at his mansion home.[121]

Professor Xavier later, bid farewell to his love, Lilandra, as she returned to Shi'ar space with the Starjammers. The X-Men battled the Brotherhood, as Mystique attempted to "rescue" her foster-daughter Rogue from the X-Men, believing Xavier had forced her leave from the Brotherhood, only to have Rogue tell her that she left of her own free will. Professor Xavier shocked everyone with the full use of his legs.[122][123]

Professor Xavier maintained his principle of never rejecting a troubled soul and, after rescuing Rachel Summers from Selene, Professor X scanned her and welcomed her to his school and the X-Men. After the New Mutants battled a Demon Bear, Professor X invited Sharon Friedlander and Tom Corsi, two more humans, to work at his school. After returning to a ruined home, Professor X allowed Warlock to join the New Mutants.[124][125]

At this time, Professor X took a visiting professorship in genetics at Columbia University, where he was beaten by a hate crime driven, anti-mutant group of students. He was helped by the Morlock Healer. Professor X and the X-Men next battled James Proudstar, brother to the original Thunderbird who blamed Prof. Xavier for his brother's death, and the Hellions to rescue Banshee. Professor X, eventually, convinced Thunderbird that his brother died a hero's death, and he released them, stating Professor Xavier was an honorable man. To rescue Banshee, the X-Men had to infiltrate the NORAD (North American Aerospace Defense Command), and the X-Men were officially outlawed.[126] After repeated assaults, from publicly announcing she was a mutant, Dazzler returned to Professor X and asked for training in the Danger Room. After her training, Professor X provided her with a new uniform that amplified and gave precision to her powers.[127]

Professor X met with his former lover, Gabrielle, on Muir Island and discovered that he was her teenage son's father. The boy, David Haller, suffered from multiple personality disorder and had vast psionic powers beyond even his father. After helping him and the New Mutants to escape from David's mind, Professor Xavier promised he would always be there for him.[128]

Feeling the return of the Beyonder, Magneto once again joined forces with the X-Men. This time, due to Prof. Xavier's weakened state from being attacked by a group of mutant haters, the Professor asked Magneto to temporarily join the team. After stopping a scheme of Loki's, Magneto went on trial in front of the World Court and was attacked by Fenris, Andreas and Andrea von Strucker, the children of Baron von Strucker. Professor Xavier suffered physical injuries and psychic strains that left him on the brink of death and asked Magneto to become his successor as headmaster of the Xavier School for Gifted Youngsters and as mentor of the New Mutants. Lilandra and the Starjammers returned and took Professor Xavier into outer space, where they used Shi'ar technology to restore him to health, but due to damage sustained by their ship, were not able to return him.[129]

While on the run from the Shi'ar, Professor Xavier was reunited with Illyana. Illyana had been attacked by the Magus, lost her teammates, and battled all the demons of Limbo, who had been infected with the Transmode Virus. Prof. Xavier was Illyana's last thought, and she was sent to the planet that he was on with the Starjammers and, with the Professor, Lilandra, and Binary, she returned to Limbo. After defeating S'ym, they gathered all of her teammates throughout time and space and returned to the planet that the Professor was on with the Starjammers and Cypher and Warlock re-wrote the Magus' DNA, effectively reducing him to infancy. During this time, Professor Xavier scanned his students for current affairs and learned of the Marauders, the loss of Nightcrawler, Colossus, and Shadowcat, and the fact that his original students were the mutant hunting team of X-Factor. Professor X, initially, decided to return, but later decided to stay-on and continue to aid the Starjammers, who he believed he owed his life to, and used Karma to mentally control Illyana into sending the New Mutants back home.[130]

After an extended sojourn in space with the Starjammers, Xavier finally returned to Earth. Both the original and second teams of X-Men reassembled under his leadership, along with new recruits like Gambit and Jubilee. Xavier led the X-Men against the Shadow King, only to have his spine broken in the Astral Plane battling his son, leaving him crippled and confined to a wheelchair once more.[131]

Xavier enhanced the X-Mansion's technology with help from Forge, re-establishing the X-Men in Westchester.[51] At some point, he then commissioned Forge with adding a new functionality into Cerebro: the ability to store every mutant’s thoughts and personality traits.[132] At the same time, an ideological schism broke out once again between Magneto and Xavier. Magneto was enraged after the revelation that Moira had secretly manipulated his genome in order to minimize the effects of his magnetic powers on his personality. This led to a confrontation between Xavier's X-Men and Magneto's new group of followers, the Acolytes.[133] After the confrontation, Xavier and Moira lost Magneto as an ally for their plan.[58]

While holding a mutant rights speech, Xavier was nearly assassinated by Stryfe, being infected with the fatal Techno-Organic Virus but was saved by none other than Apocalypse. As a temporary side-effect he gained full use of his legs and devoted his precious time to the youngest recruit on his team, Jubilee.[134]

Since the X-Men were all now highly trained adults, Xavier renamed the school in his mansion the Xavier Institute for Higher Learning. He took control of a private school, the Massachusetts Academy, and made it the new School for Gifted Youngsters, where yet another new class of young mutants, Generation X, were taught.[135]

In a battle with Magneto, Xavier lost his temper over his old friend ripping the Adamantium from Wolverine's body and used his mental powers to shut down Magneto's conscious mind by transferring it into his own.[136] In the process Xavier's mind was inadvertently infected by the malice within Magneto's psyche. The result was that the dark sides of Magneto's and Xavier's minds combined and physically manifested themselves as the nearly invincible entity called Onslaught, who usurped Xavier's psionic powers.[137] The world's greatest super heroes narrowly defeated Onslaught, who appeared to perish. However, to ensure that Xavier never again spawned a being like Onslaught, Dr. Valerie Cooper of the United States government took him into custody. Although Xavier was willing to serve as a prisoner of the United States government, he was appalled when it turned him over to the custody of Bastion, head of the anti-mutant Operation: Zero Tolerance.[138][139]

The Brotherhood & Cadre K

Xavier was eventually freed and found by Cerebro. He briefly led the Brotherhood during this time.[140] He then left Earth to train a group of mutant Skrulls called Cadre K.[141]

Dream's End

When Mystique blew up Moira MacTaggert's laboratory complex, fatally wounding her, Charles went to the Astral Plane to meet with her and retrieve information on the cure to the Legacy Virus, but after gathering the information he did not want to leave her alone. If not for Jean pulling him back, the Professor would have died with his first love, who stated she had no regrets.[142] Later, it was revealed that Moira faked her death using a Shi'ar golem in an experiment designed with help from Xavier, being the first experience Xavier had with the mutant resurrection process he would refine years later.[58]

Eve of Destruction

After the Legacy Virus was cured, Magneto assembled an army on his mutant nation of Genosha. Xavier went to try and dissuade him, but it took an interim X-Men team to stop Magneto, who had crucified Xavier in Magda Square, and former lover and disenchanted Acolyte Amelia Voght to free him.[143] Genosha was eventually destroyed, and Magneto presumed killed, through the machinations of Cassandra Nova.[144]

Going Public

Xavier regathered his X-Men as a public team and created the X-Corp in light of the incidents with Cassandra Nova Xavier, his 'evil twin.' She had revealed his mutation to the world, something he needed to do but did not want to sully his reputation over.[145]

In the wake of Cassandra Nova's attack on the Shi'ar, Lilandra had gone insane and tried to assassinate Charles on a trip to the X-Corporation branch in Mumbai. Lilandra, believing that too much disaster had come from the Shi'ar's involvement with the X-Men, annulled her marriage to Xavier.[19] His stepbrother, the Juggernaut, defected to the X-Men once Xavier reached out to him while he had nowhere to go. Cain redeemed himself, and the brothers finally came to understand one another.[146]

Shortly thereafter, Kuan-Yin Xorn revealed himself as Magneto and attacked the School and killed Jean Grey, before being killed by Wolverine. However, Xavier was apparently aware that Xorn had merely impersonated Magneto, and that the real Magneto was still on Genosha. Traveling there, he and Magneto once again set aside their differences and tried to rebuild Genosha.[147]

Danger

Xavier briefly returned to help Cyclops' team with Danger, whom he revealed was a sentient entity kept in the Danger Room to help make it a unique and realistic training setting. The revelation that Xavier had known Danger was sentient but had ignored this in order to further the X-Men's training caused the X-Men to bitterly reject him.[148]

House of M

After the Scarlet Witch lost control of her powers and suffered a nervous breakdown, leading to the murder of several Avengers, Magneto brought her to Xavier in order for him to help repair her shattered psyche. Despite his best efforts, Xavier was unable to help Wanda, and her grip on reality began to slip further and further away. He called a meeting of the X-Men and Avengers to discuss the best course of action, and several of those present argued for euthanizing the Scarlet Witch, as her reality warping powers placed all of existence in danger. Quicksilver overheard this meeting, and when a tired and hopeless Magneto echoed this sentiment, Quicksilver convinced his sister to use her powers to alter reality and create a world where their friends and family had all they wanted.[149][150]

The result was a world where mutants were the majority, and Magneto was ruler of the world. Cracks in this new world began to appear, however. After the mutant Layla Miller restored the memories of some of the X-Men and Avengers, they traveled to Genosha where they discovered that Magneto had erected a memorial garden for Xavier commemorating his death. They were horrified until Cloak faded into the grave and discovered there was nobody inside. A battle soon broke out, and after Magneto's memories were restored and he realized what his children had done, he lashed out, and killed Quicksilver. Wanda, mad with grief, resurrected her brother and restrained her father and everyone else. Bitterly accusing her father of loving mutantkind more than his own children, an angry Wanda restored reality with one caveat: no more mutants. Doctor Strange and Emma Frost managed to rescue a handful of mutants from being de-powered, but Professor Xavier was one of countless mutants that lost their powers.[151]

The Rise and Fall of the Shi'ar Empire

The truth about Xavier sending Moira's students to Krakoa all those years ago was finally discovered when an energy-mass comprised of all the depowered mutants' powers revived Kid Vulcan, now known simply as Vulcan. In a rage he attacked the X-Men, causing Xavier to come out of hiding. Use of his legs had been restored to him after the House of M, though he was no longer a mutant. Vulcan made Xavier tell the X-Men what he had done. After Vulcan was defeated and flew off into space, Cyclops told Xavier that he was no longer welcome at the X-Mansion for what he had done, though some of his other former students were more forgiving, including Beast.[152]

Even though Xavier was no longer welcome at the Institute, he nevertheless formed a new team composed of Darwin, Havok, Marvel Girl, Nightcrawler, Warpath, and Polaris for the express purpose of tracking down Vulcan before he could enact his vengeance against the Shi'ar Empire. In the midst of a coup involving Vulcan and the Shi'ar royal family, Xavier was imprisoned and briefly tortured, and then thrown into the M'kraan Crystal by Vulcan, who wished to claim his revenge against the Professor by killing him. Xavier drifted into the crystal but was rescued by Darwin. When he emerged from the crystal, he found that it had restored his powers. He returned to Earth and then began to search for his old colleague Magneto, who had also been de-powered.[153]

Charles Xavier is an Alpha-Level Mutant,[230][231] and later confirmed as an Omega-Level Telepath.[232] Said to possess the most powerful brain in existence,[233] and to be the world's greatest telepath[234][235][236][237][4] possessing vast psionic powers:

Telepathy : Xavier is able to read minds and project his own thoughts into the minds of others within a radius of 250 miles (on Earth). With extreme effort he can greatly extend that radius. When synced with Cerebro or Cerebra, he can connect to every mind on a planet. After he was thrown into the M'kraan Crystal, it not only restored his mutation, but made his telepathy more powerful than it had been previously, thereby making him the world's most powerful telepath once again. Telepathic Illusions : Charles has the ability to create realistic telepathic illusions and cause people to experience events which are not actually occurring. Telepathic Cloak : He can mask his presence from being detected by others. His abilities could at times go undetected or be counteracted by other more powerful telepaths depending on their level of skill in using their own psi abilities. He can extend these defenses to others around him as well. Telepathic Camouflage: Charles is capable of masking his and/or other people's presence from those around him. He can telepathically disguise himself, making his appearance to those around him quite different (changing the appearance of clothing, as well as more involved disguising). Mind Link : He has the ability to develop a mental link with any person which remains as a connection to that individual.

Mind Blast: He has the ability to place large amounts of information in another's mind. Mind Control : Xavier possesses the power to control the minds of others upon mere concentration. This power could allow him to completely shut down several people's minds, making it appear as if time has stopped. Mind Possession : Xavier can possess the mind of another and use that being's body as his own. Mind Alteration: He has the ability to alter the minds of others by force of will. Mental Amnesia : Charles can cause loss of particular memories or total amnesia in another person or a group of people, including his own.[238] Psychic Wave Manipulation: Xavier's mental talents are such that he can give his psionic power enough physical substance to affect the material world through his telepathy. Having used this faculty of his mutant power to K.O a Sentinel, knocking it a great distance away from himself with the power of his thoughts made real alone.[239] Mental Shield : He has the ability to erect a psychic barrier for protection of himself and of other minds, so that he could prevent the free access to the conscious and subconscious mind of anyone. Psionic Blasts: Xavier can project psionic force bolts which had no physical effects but can affect a victim's mind so as to cause the victim pain or unconsciousness and could even kill an adversary.

Mental Detection: He can sense the presence of another superhuman mutant within a small but as yet undefined radius of himself by perceiving the distinctive mental radiations emitted by such a being. Mind Transferal: Xavier possesses the ability to transfer both his mind and powers into other host bodies if his own physical body was somehow killed. Absorb Information: He has the ability to quickly process and store information, by mental transference. Telepathic Learning: He is also able to telepathically teach information to other individuals. For example, when Illyana Rasputin first came to live at the X-Mansion, he telepathically taught the all of the active X-Men Russian, so that they could communicate with her.[240] He later taught the team Japanese prior to their leaving for Tokyo to attend Logan and Mariko's wedding.[241] Xavier was also able to impart months of training into the minds of four young mutants, over the span of a few hours, to insure they were better able to use their powers and work together as a team.[242] Omnilingual: As a result of his telepathic abilities, Xavier is able to communicate with any individual, regardless of languages barriers. Astral Projection : Charles can use astral travel and communicate with others astrally through his own will, or through contact with the thoughts and memories of others. In the astral realm, he could use his powers to create "ectoplasmic" objects. He could not engage in long range astral projection on the earthly plane.

Professor X has shown low-level TK abilities.[36] Having been potent enough to disrupt high-end technological equipment with enough effort on his part.[243] Though seemingly no longer existent, they were apparently keyed to his genetics, as Cassandra Nova has the same ability and is basically a clone of Xavier. While in the newer, younger body and empowered by a Cerebro like helmet, Charles would exhibit psionic mind over matter facilities refined enough to beckon a flash drive on Mystique's person into his hand with a gesture.[39] Although recently, he seemingly fully awakened his genetic potential of his telekinetic ability and has proved powerful enough to rip people to pieces with his telekinesis.[244] Telekinetic Disassembling: Charles used his newly developed telekinetic abilities to trap Nimrod in place and break him down and separate his individual components.[28] Telekinetic Force Field : Charles can create defensive force fields capable of protecting him from the explosion of several missiles.[245] Phoenix Force: Charles Xavier briefly possessed a fraction of the Phoenix Force during his time with the Starjammers.[2] Abilities

Genius Intelligence: A natural genius, Xavier is a leading authority on genetics, mutation, and psionics. He possesses considerable expertise in other life sciences. He is highly talented in devising equipment for utilizing and enhancing psionic powers. Xavier is also quite the masterful tactician and strategist, effectively evaluating situations and devising swift responses; he has, on numerous occasions, even fashioned long-term operations as complex as those of adversaries such as Sinister, Magneto, and Apocalypse.[246]