Moira MacTaggert

Dr. Moira Kinross MacTaggert is a fictional character appearing in X-Men stories in the Marvel Comics universe. She works as a geneticist and is an expert in mutant affairs. Olivia Williams played a minor role of Dr. Moira MacTaggert in X-Men: The Last Stand. Rose Byrne played the character in 2011's superhero film X-Men: First Class; Dr. Moira MacTaggert was a CIA agent rather than a geneticist in this film. Byrne will return as MacTaggert in the upcoming 2016 film, X-Men: Apocalypse.