Marvel Girl, Jean Grey, perhaps the strongest of them all. Jean is a quiet girl who at first grabs all of the X-Men boys' eyes when she arrives, but only one of their hearts. Jean and Scott have been engaged for years and due to their tireless efforts protecting the world and the school, they haven't planned anything towards their big day. Jean's power is almost immeasureable, and while everyone has trust in her, she is the true loose cannon of the X-Men.