Professor X
Professor Charles Xavier is the leader and founder of the X-Men, and one of Magneto's best friends until conflicts of opinion create a rivalry between them and their teams. One of the most powerful telepathic minds of earth, Xavier can read the minds of others, detect when others are nearby, and communicate with them telepathically. A scientific genius, he is also a leading authority on genetics, mutation, and psionic powers. an cause the loss of specific memories or even total amnesia. He can also project powerful mental 'bolts', enabling him to stun the mind of another person into unconsciousness.
Mystique
Once a close friend of Charles Xavier, Raven Darkholme turned against the X-Men and joined Magneto's Brotherhood of Mutants, taking on the identity of Mystique, before going out on her own. She has the ability to assume the appearance of any person via shapeshifting, even copying their voices, fingerprints and retinas. Following the incident at Washington DC, Raven had become a pivotal figure within the mutant community and ushering a new era of pacific co-existence between humans and mutants, though she feels that she is no hero.
Beast
Hank McCoy was a child prodigy, having graduated from Harvard at the age of 15 due to his genius-level intellect. He was eventually recruited to work as a researcher for the CIA's Division X, wherein he investigated supersonic flight and built the Cerebro prototype. One day in 1962, he was approached by The Man in Black, Charles Xavier, Erik Lehnsherr, Moira MacTaggert, and Raven Darkholme during the early formation of the X-Men as a black-ops group. When Charles accidentally exposed him as a mutant, the urbane Hank displayed his physical mutation of prehensile feet and agility, as well as enhanced strength and reflexes.
Havok
Alex Summers, code-named Havok, is a mutant who has the ability to absorb cosmic energy and discharge destructive blasts from the energy. He has had difficulty controlling this power at first, and has to wear a special containment suit equipped with special sensors for measuring and controlling his power output. By the 1970s, Alex no longer requires any chest panel, and has more control of his power, being able to fire straight energy beams from his chest and hands. In 1983, Alex takes his younger brother Scott to the X-Mansion to seek help from professor X, with regards to his inability to control his optic blasts that are at risk of destroying anything in its wake.
Quicksilver
With the ability to travel faster than the speed of sound, this supersonic mutant named Peter Maximoff rightly earns the name Quicksilver. He was recruited by Charles Xavier to free Magneto from the heavily guarded prison located beneath the Pentagon. Later on he learnt that Magneto is his biological father, and 10 years later when he learnt about Magneto's whereabouts, he races off to the X-Mansion to get help from Professor X. He is able to use his speed to cross bodies of water, or run up walls, as well as think at great speeds. Peter can even vibrate his body to become intangible, or destroy anything he touches. As a result, he can dodge oncoming bullets with ease.
