<Ul> <Li> James McAvoy and Patrick Stewart as Charles Xavier / Professor X </Li> </Ul> <Li> James McAvoy and Patrick Stewart as Charles Xavier / Professor X </Li> <Dl> <Dd> A mutant pacifist and the world's most powerful telepath . He is also a founder of Xavier's School for Gifted Youngsters, and leader of the X-Men . Singer described the younger Xavier as "a very different beast from First Class's feckless playboy . He's a wounded animal, bearded, long - haired, filled with rage at the way the world has treated him". Kinberg said the film was intended to be the story of the younger Xavier beginning to "become the Professor Xavier we know" as Wolverine mentored him . </Dd> </Dl> <Dd> A mutant pacifist and the world's most powerful telepath . He is also a founder of Xavier's School for Gifted Youngsters, and leader of the X-Men . Singer described the younger Xavier as "a very different beast from First Class's feckless playboy . He's a wounded animal, bearded, long - haired, filled with rage at the way the world has treated him". Kinberg said the film was intended to be the story of the younger Xavier beginning to "become the Professor Xavier we know" as Wolverine mentored him . </Dd>

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