Scarlet Witch is a fictional superhero appearing in American comic books published by Marvel Comics. The character was created by writer Stan Lee and artist Jack Kirby, first appearing in The X-Men #4 (March 1964) in the Silver Age of Comic Books. She is first portrayed as a supervillain along with her twin brother Quicksilver as a founding member of the Brotherhood of Mutants. In most depictions she is portrayed as a mutant, a member of a fictional subspecies of humans born with superhuman abilities. Scarlet Witch possesses abilities to alter reality in unspecified ways and is a powerful sorceress. Scarlet Witch is later depicted as a regular member of the Avengers superhero team. She also becomes the wife of fellow superhero and teammate Vision, with whom she has two sons, Thomas and William.