Rose Byrne who played the role of CIA agent Moira MacTaggert in X men First Class has signed on to the film. “Apocalypse” writer Simon Kinberg said they plan to dig into her relationship with Xavier. Moira MacTaggert first appeared “Uncanny X-Men #96” and is a geneticist who runs the Mutant Research Center on Muir Island, rather than a CIA agent. She also helped Professor X found his school and create Cerebro. The character was created by Chris Claremont and Dave Cockrum
