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James Sanders (Earth-616)
Speed Demon

Full Name: James Sanders
First Appearance: Avengers #69 (as Whizzer)
Amazing Spider-Man Vol. 1 #222 (as Speed Demon)
Created by: Roy Thomas, Sal Buscema
Home Universe: Earth-616
Alignment: Neutral
Status: Alive
Place of Birth: New York City, New York
Citizenship: American
Base: Mobile
Affiliations: Sinister Six; formerly Hood's Criminal Army, Maggia, Thunderbolts, Sinister Syndicate, Squadron Sinister
Powers/Abilities: Good hand to hand combatant.
Height: 5' 11" (1.80 m)
Weight: 175 lbs (79 kg)
Hair Color: Blond
Eye Color: Brown
Unique Features:

"Y'know, I'm sick of you whining about what you can't do... Let's run like the devil and make Hell freeze over!"
— Speed Demon

James Sanders (of Earth-616), better known as the Whizzer and Speed Demon, is a former member of the Sinister Syndicate, the Thunderbolts, and the Hood Criminal Army; and is currently a member of the Sinister Six. Originally a disgruntled pharmacist, James agreed to become a super-villain in exchange for the power of super-speed.


James Sanders was a chemist who was tired of his job at Hudson Pharmaceutical Company. He was summoned by the Grandmaster in order to fight the Avengers. He was given a serum that gave him speed, stamina, and reflexes and taken up the codename Whizzer. He and the other Squadron Supreme members were beaten by the Avengers. They one time fought the super team called the Defenders but were defeated. Doctor Strange erased Sander memories about being the Whizzer, and was sent back to his universe. He later came up with a powerful variant of the formula that given him even greater speed, agility, stamina, and reflexes then he had before. He clashed with Spider-Man and the Human Torch for the first time taking the name Speed Demon, as his original alias might have gotten him confused with the Golden Age hero of the same name. He fought with Spidey many times before joining the villains turned heroes group called the Thunderbolts, where he was kicked off for committing crimes under his old name, the Whizzer. His legs were broken for a time by Joystick. He currently is a member of Boomerang's Sinister Six.

Powers & AbilitiesEdit


Speed Demon possesses various superhuman attributes after having them bestowed upon him by the Grandmaster.

  • Peak Human Strength: Speed Demon's physical strength has been greatly augmented by the Grandmaster to levels beyond that of most humans. While not qualifying as superhuman, Speed Demon is as physically strong as a human can naturally be without be categorized as superhuman. At his peak, Speed Demon is able to lift up to 800 lbs.
  • Superhuman Speed: Speed Demon's primary superhuman power is the ability to run, move and think at superhuman velocities. Speed Demon is able to run at speeds faster than that of sound, sufficient to allow him to run across water over a certain distance and to allow him to run straight up walls. Moving at such a high rate makes him appear as little more than a blur over short distances.
  • Superhuman Stamina: The Grandmaster has rendered Speed Demon's musculature much more efficient than that of a normal human. As a result, his muscles produce considerably less fatigue toxins during physical activities. At his peak, Speed Demon can exert himself for up to 24 hours before the build up of fatigue toxins in his blood begins to impair his capabilities.
  • Superhuman Durability: The tissues of Speed Demon's augmented body are tougher, more resilient and more resistant to certain forms of physical injury than those of a normal human. His body is particularly adapted to resist the natural rigors that moving at such extreme velocities would have on a normal human. An unenhanced human body would experience extreme friction to the skin, muscles, bones and particularly the joints and would result in permanent injury. Speed Demon is also more resistant to impact trauma than a normal human. He can withstand impacts, such as falling from several stories or being repeatedly struck with superhuman force, which would severely injure or kill a normal human while sustaining little to no injury himself.
  • Superhuman Agility: Speed Demon's agility, balance and bodily coordination are enhanced to levels that are beyond the natural physical limits and capabilities of the finest human specimen.
  • Superhuman Reflexes: Speed Demon's reflexes are similarly enhanced and are beyond the natural physical capabilities of the finest human specimen.


Speed Demon is a good hand to hand combatant who specializes in various street-fighting techniques performed at superhuman speeds.

See AlsoEdit

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