Harry Hasso (born Karl Hartnagel, July 24, 1904 – July 11, 1984) was a Swedish actor, cinematographer and film director. Hasso was born in Frankenthal, Germany. He worked in Sweden, Germany and Italy and for a short time in Finland as a cameraman and film director and he also wrote some of the music and manuscripts for some of the films he made. He learned to play the violin at a very young age and also played harmonica. He started his career in Luxembourg when was 16 years old. He started his own film company at age 18. He made many movies and at least 100 documentary films among them films about his home country and home town. All the documentaries he made have been missing since World War II. Occasionally he was an actor in some of his films.