Names: Wanda and Pietro Maximoff
Affiliations: Avengers, X-men, Brotherhood of Evil Mutants
Superpowers: QS: Superspeed, SW: Reality manipulation
Wanda and Pietro, the superpowered twins, are the children of none other than Erik Lehnsherr, the powerful Magneto. They did not know this fact for a good portion of their lives, however. Both long-lasting Avengers as well as members of the Brotherhood of Evil Mutants, their pasts are checkered at best.
Pietro was always fiercely protective of his sister, although her manipulative abilities were some of the most powerful forces in the universe. Wanda Maximoff is one of the most influencial characters in all of Marvel, as wel as one of the most unstable. During one temporary time of insanity, Wanda completely disassembled the Avengers, killing Hawkeye in the process.
At another point, under the influence of her brother, Scarlett Witch remade existence, placing her father Magneto as the supreme ruler of Earth. When she realized this was a bad idea, she re-remade existence, restoring just about everything to its previous state, with a few notable exceptions. 90% of the mutant population of Earth no longer had any abilities whatsoever. Among these were Professor X, Magneto, Quicksilver, and herself. Many regained their abilities, although most did not.
This fundamental change in the culture of Marvel endures to today’s comics.
Despite their influence in Marvel, neither Quicksilver or Scarlett Witch have made it to the big screen. Avengers: Age of Ultron will see both of these characters, played by Aaron-Taylor Johnson and Elizabeth Olson. In X-men: Days of Future Past, Quicksilver will be played by Evan Peters. There is no confirmed appearance of Scarlett Witch, but the following picture has been released:
Although not twins, this does lead me to believe that she will be featured to some degree in the film.
Which portrayal of the siblings will be better? Will either do justice to the comics? Time will tell.
Source: Dougall, Alastair, ed. The Marvel Encyclopedia. London: Dorling Kindersley, 2009. Print.