For those that don't know about these characters, Scarlet Witch and Quicksilver are Magneto's twins. Both the twins have a troubled past, switching sides from hero to bad guys because of their familial ties. So the fact that Scarlet Witch is switching sides to join the Avengers will make for an interesting plot twist and won't make anything easy for anyone.
The characters will fit into the "Age of Ultron" flick because Ultron is the Sentient AI that kills Scarlet Witch's husband Vision. Therefore, bringing them in sooner than what would have normally happened in the comics is important to the story line.
Elizabeth recently also talked about her character in an interview saying that with so much material and switching from hero to bad guy, there is just so much she could pick from in how she could play the character. Olsen claims;
"I just love Scarlet Witch. I love her. It's so funny because I'm often talking about all these psychologically damaged people, but when you talk about Scarlet Witch...she is a messed up lady. She has got more shit to deal with than anybody else I know. I'm excited to figure out what's appropriate to use for her, because there's so much material from all of these decades, and we're going to tell this one story. So to be able to choose what you're going to bring into it from all of this abundance, it's really fun."
What do you think of the addition of Scarlet Witch? Are you excited to see how she will be played and how difficult she might make the Avenger's work?