Pietro Maximoff

Quicksilver is capable of moving and thinking at superhuman speeds.

Captain America: The Winter Soldier
Wolfgang von Strucker guides a HYDRA agent to "the twins", and says it is the "age of miracles". Quicksilver and Scarlet Witch are held in separate cells, imprisoned in HYDRA's headquarters.

Avengers: Age of Ultron
To be added

Relationships

 * Scarlet Witch - sister

Appearances/Actors

 * Marvel Cinematic Universe (2 films)
 * Captain America: The Winter Soldier (First appearance) - Aaron Taylor-Johnson
 * Avengers: Age of Ultron - Aaron Taylor-Johnson

Behind the scenes
To be added

Trivia

 * Quicksilver can be used by either Marvel Studios or 20th Century Fox providing that the latter doesn't mention anything about his allegiance to the Avengers and the former doesn't refer to him as a mutant or name him as Magneto's son.
 * On October 30th, Aaron Taylor-Johnson officially signed on as Quicksilver.
 * Johnson's Kick-Ass co-star Evan Peters will portray the X-Men version of the character in 2014's X-Men: Days of Future Past.
 * Aaron Taylor-Johnson's role in Captain America: The Winter Soldier was uncredited.