Fan Casting Old friends in X-Men: Project Sentinels

Xavier meets with Magneto. The two talk about the Hellfire Club, for whom Magneto shows disdain for their way of thinking. Then Magneto comments on him having opened the doors of his school to the world, which has put a target on them and on his students. He asks if he is not afraid that they will come after him. With a serious expression, Xavier says that he is afraid, that there are those who will try to hurt his school and his students, and then ends by saying that it didn't end well for the last person who tried, indicating Magneto himself.