Wanda Maximoff, better known as the Scarlet Witch, is a major character in the Marvel Cinematic Universe.
She is a Sokovian native who was born with the power of chaos magic. She was experimented on by HYDRA alongside her twin brother Pietro Maximoff and gained the ability of psionic manipulation.
Wanda and her brother became driven by revenge against Tony Stark after his weapons were used in a bombing that accidentally killed her parents. Eventually, Wanda and Pietro abandon their grudge to stop Ultron's destruction of humanity. Upon these events, she becomes a kind-hearted, yet sometimes destructive, Avenger.
After Vision's death and the defeat of Thanos, however, Wanda takes control of the town of Westview to create her own perfect reality, as a way of coping with her past traumas and depression, but in doing so, also inadvertently traps the town's inhabitants, not letting them escape her idea of a perfect world. Realizing the harm and damage she had done to others, she decided to let her simulacrum family go and put herself in exile.
When she began to study the Darkhold to refine her powers, however, she became corrupted by its dark magic and fell under the delusion that she would find her children in another universe. Learning of America Chavez and her ability to travel across the multiverse, she started a rampage in pursuit of power, in order to find her children and the idyllic life she once had, leading her to come in conflict with her former friend, Doctor Strange, as well as the Masters of the Mystic Arts.
She was portrayed by Elizabeth Olsen, who also played Thérèse Raquin in the 2013 In Secret adaptation and Candy Montgomery in the 2023 miniseries Love & Death. Her younger self was portrayed by Michaela Russell.