Synopsis
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.
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Cast
- John HartJack Armstrong
- Rosemary La PlancheBetty Fairfield
- Claire JamesPrincess Alura [Chs. 3-6, 9-11, 15]
- Joe Brown Jr.Billy Fairfield (as Joe Brown)
- Pierre WatkinUncle Jim Fairfield
- Wheeler OakmanProf. Hobart Zorn
- Jack IngramHenchman Blair
- Eddie ParkerHenchman Slade
- Hugh ProsserVic Hardy
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