Willow to Appear in X-Men: First Class?

"I was auditioning for a role named Willow (hopefully I don’t get in trouble for blabbing details on the off-chance that I get it). It’s a role similar to Mystique from what I understand. Potentially lots of body paint, so that would be really fun," she said.

Willow is a fictional mutant character created by Marvel Comics for their Marvel 2099 run "X-Nation 2099." She had shapeshifting powers, much like Mystique, but when mimicking others her facial markings would remain.

Check out the trailer to Fox’s last X-Men film, X-Men Origins: Wolverine below: