Greg Stillson is a fictional character from the novel "The Dead Zone" by Stephen King. He is portrayed as a charismatic and ambitious politician who rises to power, driven by a desire for control and influence. Stillson's character embodies the darker aspects of political ambition, often using manipulation and fear to achieve his goals. In the story, Stillson's actions have significant consequences, as he is linked to a potential future catastrophe. The protagonist, Johnny Smith, possesses psychic abilities that allow him to see the dangers associated with Stillson's rise, leading to a moral dilemma about intervention and the nature of fate.