Mutant Twins Mania! Quicksilver and Scarlet Witch Confirmed For 'Marvel's The Avengers 2′

Pietro Maximoff (Earth-616), Marvel Database

A Guide to Scarlet Witch and Quicksilver, the Twins Teased at the End of 'Captain America: The Winter Soldier

Are Avengers: Age of Ultron's Quicksilver and Scarlet Witch Actually Inhumans?

Are Scarlet Witch and Quicksilver Mutants in the Marvel Cinematic Universe? - Quora

Magneto, X-Men Wiki

Meet The Newest Members Of The Avengers Franchise

Scarlet Witch And Quicksilver Confirmed For THE AVENGERS 2

This Woman's Work – Artforum

Scarlet Witch and Quicksilver Should be Mutants Again

Who is That in the 'Captain America 2' Post-Credits Scene?