Real Name: Piotr "Peter" Nicklitovitch Rasputin
Former Aliases: Peter Nicholas, The Proletarian
Group Affiliation: X-Men
Former Affiliations: Excalibur, Alcolytes
Known Relatives: Nikolai Rasputin (father, deceased), Alexandra Rasputin (mother, deceased), Illyana Nikolovna Rasputin (sister, deceased), Mikhail Rasputin (brother, deceased)
Legal Status: Russian citizen, now living in the United States under a special arrangement made for him by Professor Charles Xavier, with no criminal record; now naturalized American citizen
Place of Birth: Ust-Ordynski Collective, near Lake Baikal, Siberia, Union of Soviet Socialist Republics Marital Status: Single
Eyes: (human form) Blue; (armored form) Silver
Hair: Black
Height: (human form) 6'6"; (armored form) 7'5"
Weight:
(human form) 250 lbs; (armored form) 2000 lbs
Note -- current weight/mass estimate is from a recent issue of Excalibur; originally, his armored form was only 500 lbs, but his weight/mass has increased as his strength and durability increased over the years.
Base of Operations: (Current) Professor Charles Xavier's School for Gifted Youngsters, Salem Center, Westchester County, New York (Former) Muir Isle, Scotland, a loft in Soho, Manhattan, Ust-Ordynski Collective, Lake Baikal, Siberia, U.S.S.R., X-Men Headquarters in Australian outback
Powers: Colossus is a mutant with the ability to change his flesh into an organic form of steel at will. In this form he has no need to eat or breath.
Strength level: (human form) lift/press aprox. 800-1000 lbs -- olympic-class power-lifter levels. (armored form) originally could lift aprox. 70 tons, but has increased dramatically over the years. Currently, Colossus is estimated to be the strongest living mutant on Earth; able to lift over 100-110 tons.
Armored form Resistances/Immunities: Virtually immune to heat/flame and cold -- can withstand a full-forced blast from the Human Torch and/or Iceman without any effects. Colossus can survive in extreme tempertures from -320 fahrenheit to approx. 9000 fahrenheit. It is not known if he could withstand the heat from a star.
Magical resistance/immunity due to iron-content; most magical entities are highly vulnerable (according to legend/folk-lore/Marvel mania) to cold iron. Colossus has also been shown to be resistant/highly effective against Magical Entities such as the Adversary (from Fall of the Mutants, X-Men 221-225) and Inferno.
Can withstand physical force on the order of being hit by a speeding 5000-ton train without taking damage. Also highly resistant to most other forms of energy -- electricity (it can't hurt him, but it can be passed through him to affect others), plasma (immune to Havock's blasts), light/lazer/photon blasts (Dazzler has never been able to actually cause him damage -- just blind him), etc.He could survive a collision with a loaded, one-ton flatbed truck at 100 miles per hour or an explosion of 450 pounds of TNT.
He can survive extremes of temperature from 70 degrees above absolute zero (-390 degrees Fahrenheit) to approximately 9000 Fahrenheit. However, it is theorized that above the latter temperature, his armored form would begin to melt.
Colossus's armored form cannot rust under normal Earth conditions.
Colossus's eye can withstand an impact from a .45 cailber bullet. He can also withstand the penetration of a 110 millimeter howiter shell.
Vulnerabilities: Can be affected (but vitually immune to harm) by Magnetism. Note -- Magneto has never actually been able to harm Colossus with his powers; he simply uses the magnetism to throw Piotr at different team-mates or objects.
Very vulnerable to strong acids; anything on the level of concentrated sulfuric acid or stronger can eat through his armored form, making him vulnerable to other damage.
Mental Resistance: Trained by various telepaths in mind-strengthening techniques, giving him resistance to most low-leveled telepaths. However, emotion-altering powers or similar things tend to (in the past) sway him fairly easily. Particularly relating to/from Illyana (aka Magik).
Speed and Agility: Poitr is much faster than his size would indicate -- speed, reaction- time, and reflexes are on the level of an average gymnist.
Miscellaneous: In Uncanny X-Men 181 (when he broke-up with Shadowcat), Colossus fought Juggernaut single-handedly -- he was drunk, and out-classed, but did a fair job before Juggy pulled a building down on top of him and ended the fight. Personally, I think that Petey is now stronger than Juggy (estimates are that Juggy can only lift 90 tons), so the fight would probably be an even-match.
History: Piotr Rasputin was born on the Soviet collective farm called the Ust-Ordynski Collective near Lake Baikal in Siberia. His superhuman powers emerged in adolescence. At first, Rasputin was content simply to use these powers to aid the other people of the Collective.
However, Rasputin was contacted by Professor Charles Xavier, founder of the X-Men, when Xavier was organizing a new team of mutant X-Men to help him rescue the original X-Men from the sentient island Krakoa Rasputin agreed to leave the farm community in which he was born and raised to go to America with Xavier. Xavier gave Rasputin the code name "Colossus" and Rasputin aided Xavier's other new recruits in their battle against Krakoa. After the battle was won, Rasputin remained in the United States with the new X-Men.
Rasputin's family always remained in his thoughts. Shortly thereafter a woman known as Miss Locke kidnapped many of the X-Men's loved ones to use as hostages in order to force the X-Men to aid her in freeing her employer, Arcade, from captivity by one of Doctor Doom's robots. Among her captives was Colossus's younger sister Illyana, whom Locke had somehow kidnapped from the Siberian collective farm and transported to the United States. The X-Men freed Illyana from captivity, and she went to live with her brother Peter at Xavier's mansion. Due to her later captivity in a dimension known as Limbo where she spent years while only mere moments elapsed on Earth, Illyana became the adolescent sorceress known as Magik.
Colossus and the other X-men were all thought dead after fighting the Adversary. They continued their battles from a base in Australia. It was during this time that the X-Men endured Inferno. At the end of Inferno, Illyana returned to her true Earth age.
After Illyana was returned to her true Earth age, Colossus thought it would be better for Illyana if she went back to live with their parents. Sadly, her parents were slain and she was kidnapped by a mutant known as the Soul Skinner who hoped to genetically evolve Illyana to the point where she would have the use of her powers again. Colossus, with the help of the X-Men, saved Illyana and brought her back to the mansion.
Later, Illyana became the first tragic victim to be infected with the Legacy Virus and die from it. The deaths of his immediate family caused Colossus to rethink his position with the X-Men and join Magneto and his Acolytes, who had offered him an alternative to the X-Men's way of fighting and living.
His stay with Magneto was not long once he realized that Avalon was not the place for him, either. He left in search of the only person he felt truly cared for him, his former love and teammate Kitty Pryde, now a member of Excalibur. Colossus traveled to England, where he found Kitty in the arms of her new love, Pete Wisdom. Colossus, enraged, attacked Wisdom, and although the battle was short-lived, they both sustained minor injuries.
Colossus, Nightcrawler, and Shadowcat have all returned to the X-Men since the disbandment of Excalibur.
Piotr Rasputin died curing the Legact Virus!