The Lost character John Locke is a mysterious man who was on the island for many years before the other survivors arrived. He is a spiritual leader and believes in fate and destiny. BEN Linus is a former leader of the Others, a group of people living on the island. He is manipulative and cunning, and often uses his power to manipulate the survivors. Claire Littleton is a pregnant woman who was on the island when the survivors arrived. She is a strong-willed and independent woman who is determined to protect her unborn child.