The most powerful telepath alive, who runs a school, and whose entire method rests on persuading people to wait.
Xavier’s position is that mutants and humans can share a world, and every film in the series tests it. He is not written as naive: he knows exactly what the other side of the argument sounds like, because he is best friends with it.
The most interesting thing the films do with him is refuse to make him good. He edits memories, he keeps secrets from people who had a right to them, and in his last film the consequences of that are not abstract.
Show detailsThe count in the source is wrong
The reference article says he appears in eleven live-action films and one television series, and then names thirteen films in the same paragraph. The eleven is exactly the Fox run; the two Marvel Studios appearances are not counted. One of those two, Avengers: Doomsday, is not yet released, so it is not in the list here either.
This catalogue follows the named list rather than the number. The television series is Legion, where Harry Lloyd plays him in the third season; Patrick Stewart and James McAvoy split the films, and both are in Days of Future Past.