He is perhaps the most central character of the entire series, as almost all the events that take place starting from the plane crash right to the end revolve around him and his nemesis The Man In Black. In some of his appearances, Jacob has exhibited supernatural powers such as healing, near omniscience, conferring immortality, and changing peoples' destiny to suit his goals. Through these powers, he had a heavy influence on the lives of several of the main characters including Jack Shephard, Kate Austen, John Locke, James Sawyer, and Hugo Reyes.