Jack Beauregard is a fictional character from the 1970 Italian film "The Return of Jack Beauregard." He is portrayed as a legendary gunslinger who is tired of his violent past and seeks a peaceful life. The film is a blend of Western and comedy, showcasing Beauregard's journey as he confronts his former life and the challenges that come with it. In the movie, Beauregard is played by actor Franco Nero, who brings charisma and depth to the role. The character's story revolves around themes of redemption and the struggle between a violent past and the desire for a tranquil future. The film has gained a cult following for its unique take on the Western genre.