And as the mutants are finally coming in, here’s a rundown of every mutant who has been cast in the MCU so far. The first confirmed casting was that of Professor Charles Xavier in Doctor Strange and the Multiverse of Madness. Patrick Stewart, who played the character in Fox’s universe, donned the role in the MCU too. In more recent updates, the MCU cast Samara Weaving as Emma Frost, who will be a part of the X-Men movie. More buzz about the mutant casting has surfaced.