Jack Armstrong [376080] Released: 1947-02-06 Revenue: $0 Budget: $0 Profit: $0 Runtime: 300 mins Popularity: 0.2619 Vote Average: 0 Vote Count: 0 Overview: 15 episode serial where Jack Armstrong, the All-American Boy, battles the evil Dr. Grood, who has placed a death ray aboard his spaceship orbiting Earth. Cast [9] John HartJack Armstrong Rosemary La PlancheBetty Fairfield Claire JamesPrincess Alura [ Joe Brown Jr.Billy Fairfield Pierre WatkinUncle Jim Fairfi Wheeler OakmanProf. Hobart Zor Jack IngramHenchman Blair Eddie ParkerHenchman Slade Hugh ProsserVic Hardy Trailers