Raven Darkholme/Mystique – X-Men: First Class (2011)

The character Mystique (Jennifer Lawrence) in X-Men: First Class is brought up as Xavier’s foster sister, and helps assemble the X-Men crew, but ultimately leaves as she isn’t happy with her role. She joins Magneto and the Brotherhood of Mutants, where her appearance is embraced and she doesn’t have to hide. She also becomes an enemy to the X-Men, who believe in co-existing with humans, whereas the Brotherhood believe they should rise above and rule the world.