Jack Marston is a fictional character from the video game series Red Dead Redemption, developed by Rockstar Games. He is the son of the main character, John Marston, and plays a significant role in the game's storyline, particularly in the sequel, Red Dead Redemption 2. In the game, Jack is portrayed as a young boy who grows up in the harsh environment of the American frontier. His character evolves throughout the story, reflecting themes of family, revenge, and the impact of a violent lifestyle. Jack ultimately seeks to avenge his father's death, showcasing the cycle of violence in the game's narrative.