The New Avengers
Real name: Pietro Maximoff
Other aliases: None known
Identity: Publicly known
Occupation: (current) Adventurer, (former) Terrorist, officer of the Inhumans militia, United States government operative
Legal status: Former citizen of Transia, naturalized citizen of the United States, citizen (by marriage) of Attilan
Place of birth: Wundagore Mountain, Transia (in Eastern Europe)
Marital status: Married
Known relatives: Magneto (father), Magda (last name unrevealed, mother, presumed deceased), Django Maximoff (adoptive father), Marya Maximoff (adoptive mother, deceased), Wanda Maximoff (Scarlet Witch, sister), Crystal (wife), Luna (daughter), Medusa (sister-in-law), Black Bolt, Gorgon, Karnak, Triton, Maximus (cousins by marriage), Vision (former brother-in-law)
Base of operations: (current) a castle on the Hudson River in upstate New York that is owned by the High Evolutionary; (former) Transia; Avengers Mansion, Manhattan; Avengers Compound, Palos Verdes, California; X-Factor headquarters, Washington D. C.
Group affiliation:(current) Avengers, unofficial member of the Royal Family of the Inhumans, (former) Brotherhood of Evil Mutants I, X-Factor II
First appearance: X-MEN (first series) #4
Height: 6 ft.
Weight: 175 lbs.
Strength level: Quicksilver possesses superhuman strength primarily in his lower body as part of his body's adaptations for running. With his upper body he can lift (press) approximately 1000 pounds. He can leg press approximately one ton under optimal conditions.
Known superhuman powers: Quicksilver is a mutant who possesses the superhuman capacity to think and move at great speeds. His entire body is adapted towards the rigors of high-speed running. His cardiovascular and respiratory systems are many times more efficient than those of a normal human being. He metabolizes an estimated 95% of the caloric energy content of foodstuffs (normal human use is about 25%). The chemical processes of Quicksilver's musculature are so highly enhanced that his body does not generate fatigue poisons, the normal by-products of locomotion, which force the body to rest. Rather, his body constantly expels waste products during his accelerated respiration through exhalation. His joints are smoother and lubricated more efficiently than those of a normal human being. His tendons have the tensile strength of spring steel. His bones contain unknown materials significantly more durable than calcium to withstand the dynamic shocks of his feet touching the ground at speeds of over 100 miles per hour. Quicksilver's practical reaction time is about five times faster than a normal human's and the speed at which his brain processes information is heightened to a level commensurate with his bodily speed, enabling him to perceive his surroundings while traveling at high velocities. Quicksilver's lachrymose is more viscous than normal, thus preventing rapid evaporation and replenishment of surface fluids on his eyeballs under the influence of high wind velocity to occlude his vision.
Quicksilver has been timed at speeds of up to 175 miles per hour, approximately three times faster than the fastest land animal, the cheetah. He has sufficient energy reserves to enable him to run at this average speed for about four hours, whereupon he must reduce his speed, replenish his body's store of energy, or do both.
Quicksilver has used his powers of acceleration for various feats. He has plucked an arrow out of the air from a standing start, after the arrow left the bow and traveled a distance of about 20 feet. He has dodged machine gun fire, but presumably he was able to see the path of the bullets change as his assailant was attempting to track him with a burst. He has created cyclone-like gusts of wind, which are able to knock a man off his feet, by racing around in a ten-foot diameter circle. With a 500-foot approach to gain momentum, Quicksilver can run approximately 300 feet up the side of a surface with a 90-degree inclination (such as a building) before gravity overtakes him. With a 100-foot approach to gain momentum, he can run across a body of water for approximately 1000 feet before beginning to sink.