Charles Foster Kane is the fictional protagonist of the 1941 film Citizen Kane, directed by Orson Welles. He is a wealthy newspaper magnate whose life story is revealed through the investigation of his last words, "Rosebud." The film explores themes of power, ambition, and the complexities of human relationships. Kane's character is often seen as a representation of the American Dream, showcasing both the heights of success and the depths of loneliness. His rise to prominence and subsequent fall illustrate the impact of wealth and influence on personal happiness and fulfillment.