Scarlett Witch.
Wanda Maximoff, also known as Scarlet Witch, is a fictional character from Marvel comics. She is a mutant known to be the enemy of the X-men. But later on, she turned good and joined a superhero team, The Avengers. She is the daughter of Magneto and sister to Quicksilver and Polaris. Her power includes the ability to manipulate probability and of course, magic.
In Fearless Slayer Movie: First Class, she's one of the teachers of the academy run by Professor X. She gives Sora and the Slayers some instruction for their students before going to a meeting with Professor X, Rhodey and Dr. Bruce Banner.