Johnny Smith is a fictional character from the novel "The Dead Zone" by Stephen King. He possesses psychic abilities that allow him to see the past and future through touch. After waking from a five-year coma, Johnny struggles to come to terms with his powers and the moral implications of using them. In the story, Johnny's abilities lead him to uncover important truths, including a potential political disaster involving a character named Greg Stillson. His journey explores themes of fate, responsibility, and the impact of one's choices on the world around them.