4. Locke Is Professor X
John Locke is an old bald man who at various points throughout the show is either crippled or walking. He serves as a leader and advisor for the survivors, kindly helping all who seek his aid, but especially mentoring Jack as a father figure. He also has a strange mystical understanding of the island. He develops a special friendship/rivalry with Ben Linus where they are either saving each other's lives or trying to kill each other. He is possessed by the black smoke monster, and we only find out after he causes the murder of Jacob. Charles Xavier is an old bald man who at various points throughout the comics is either crippled or walking. He is the founder and leader of the X-Men, warm-hearted, fatherly, and doting on everyone, especially Cyclops who he chooses to lead the team. He can also read minds which gives him a unique understanding of people and relationships. He's always had a special friendship/rivalry with Magneto, blood brothers who spill each other's blood. He is possessed by his evil twin sister, and we only find out after he sabotages the Shiar empire.