Victor Creed, codename Sabretooth
Sabretooth is an animalistic mutant with enhanced strength, senses, agility and cat-like claws and teeth. He also possesses a healing factor like his half-brother Wolverine, which dramatically slows down his aging process, allowing him to live beyond a normal human lifespan, but with the appearance of an adult aged between 30 to 40. This "healing factor" also grants him virtual immunity to poisons, most drugs, toxins and diseases, and limited immunity to the fatigue poisons generated by his own body.
Sabretooth is superhumanly fast and seen running on all fours at the speed of big cats like tigers and lions. His physical appearance also displays animal-like mutations, including sharper-and-longer-than-normal teeth, with two pronounced canines rather more like a tiger's canine teeth than a human's and retractable claws of several inches where ordinary humans have fingernails and toenails. Sabretooth's claws and teeth are capable of cutting most conventional materials including flesh, bone, wood, stone, and some types of metals. He has used his claws and strength to climb buildings made of concrete and metal.
John Allerdyce, codename Pyro
Pyro is a Class 4 mutant with the ability cause any fire, however small, to grow in size and intensity and project it. He was a student at Xavier's School for Gifted Youngsters, before defecting to the Brotherhood of Evil Mutants.
Pyro has the psionic ability to manipulate any flame, causing it to grow in size and intensity. However, he is unable to create fire, and for this reason, he wears a mini flamethrower device strapped around both hands. Pyro is invulnerable to any fire that he has placed under his psionic control, though he can be harmed by any fire not under his direct control.
Yuriko Oyama, codename Lady Deathstrike
Yuriko was the bodyguard of William Stryker. She was an incredibly skilled martial artist, disposing of a great agility and a deep knowledge of combat. She was also incredibly strong, being able to throw Wolverine across a room, and similarly leap such distances herself. Deathstrike possesses a healing factor equal to Wolverine's. William Stryker gave her retractable adamantium claws, presumably along with an adamantium skeleton, with one sprouting from the tip of each finger. However, it is unclear exactly what Yuriko's mutation was, as Stryker's dialogue suggests her ability to heal was what makes Wolverine no longer "unique". That and her altered eyes appear to be the only natural mutations she had, as it was strongly implied in the film that her claws are entirely artificial. She shows a cold and calm character, but she was later revealed to be under Stryker's mental control, so her real personality remains unknown.
Callisto
Callisto was a mutant with enhanced senses and super speed. She was the leader of the Omegas, a sub division within the Brotherhood of Mutants that lived mostly in the sewers. She can psionically sense the presence and Mutant level of other mutants, even from far ranges. Callisto's body was adapted to the rigors of high-speed movement. Her cardiovascular and respiratory systems were likely many times more efficient than those of a normal human being.
Maxwell Jordan, codename Quill
Quill was a mutant who had porcupine-like spikes that came out of his skin, most notably his face and head.
Phillipa Sontag, codename Arclight
Arclight is a member of the Omegas, with the ability to create shockwaves. She could direct a wave of seismic energy by striking a victim with her hands or feet. This typically created a massive shockwave, damaging and/or disorientating all within her line-of-fire, shattering objects, and causing earth tremors. Her hands gave off a bright light upon impact.
Elizabeth Braddock, codename Psylocke
Psylocke is a mutant who has telepathic powers and can summon Psi-Blades from her fists, as well as an ability to teleport through shadows.
Cain Marko, codename Juggernaut
Juggernaut is a mutant with super-human strength and stamina, as well as a healing factor and an immense tolerance to pain. Once he begins to advance in a certain direction, it is virtually impossible to halt his movement. Some obstacles can slow his pace but cannot completely halt him. Strong leg muscles allow him to run and move at speeds beyond the natural physical limits of the finest human athlete. He can run at speeds of 110 miles per hour or more. Juggernaut's skin, muscle, and bone, is exactly 4 times denser than the same tissue in the body of a human being, greatly contributing to his superhuman weight.
Jamie Maddox, codename Multiple Man
Multiple Man is a mutant who can duplicate himself, and has a history of robbing banks. His mutant ability allows him to split in several duplicates which he can control at will: the number of the duplicates is potentially infinite and they all possess the original one's capacities. Jamie and his dupes serve as a decoy for Magneto's Brotherhood, appearing to the authorities to be the Brotherhood on a satellite image, while the real Brotherhood escapes. He is presumably rearrested by U.S. Army troops after the ruse is discovered.
