Professor Charles Xavier, also known as Professor X, is a leading character in the X-Men series. As the founder of the X-Men and the Xavier School for Gifted Youngsters, he is a powerful telepath who can read and control minds. Dedicated to fostering peaceful coexistence between humans and mutants, he often serves as a mentor and father figure to his students. His role is pivotal in the series as he works tirelessly to protect both mutants and humans from various threats, while promoting understanding between the two groups.