Wanda Maximoff Marvel Cinematic Universe character Elizabeth Olsen as Wanda Maximoff / Scarlet Witch in the miniseries WandaVision (2021). First appearance Captain America: The Winter Soldier (2014) Based on Scarlet Witch by Stan Lee Jack Kirby Adapted by Joss Whedon Portrayed by Elizabeth Olsen Michaela Russell (young) In-universe information Title Scarlet Witch Occupation Avenger Affiliation Avengers Hydra Weapon Chaos magic[1][2] Family Olek Maximoff (father) Iryna Maximoff (mother) Pietro Maximoff (brother) Significant other Vision[lower-alpha 1] Children Billy and Tommy Maximoff[lower-alpha 2] Origin Sokovia Nationality Sokovian