Michael Sylvester ″Sly″ Gardenzio Stallone (born July 6, 1946), nicknamed Sly Stallone, is an American actor, director, movie producer, body-builder, and screenwriter. Sylvester Stallone has been in many action movies. He has played two famous movie characters: Rocky Balboa, the boxer who overcame challenges to fight for love and glory, and John Rambo, a brave soldier who did violent missions.