 Jake's given name is John, but he prefers to be known by Jake, and is called "'Bama" by his housekeeper, who is far closer to him than his parents.In his home world, he dies at the hands of Jack Mort (who Jake initially believes is Walter) and ends up in Roland's world as a result.The gunslinger and the boy travel together in pursuit of the Man in Black, developing a strong bond along the way.