Jack Burden is a central character in the novel "All the King's Men" by Robert Penn Warren. He serves as the narrator and is a political reporter who becomes deeply involved in the life of Willie Stark, a charismatic and ambitious politician. Jack's journey explores themes of morality, power, and the complexities of human nature. Throughout the story, Jack grapples with his past and the impact of his choices. His relationships with other characters, including Anne Stanton and Judge Irwin, reveal his internal conflicts and search for meaning in a world filled with corruption and ambition.