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Jack Armstrong (1947)

Genres: Adventure

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.

John Hart as Jack Armstrong
Rosemary La Planche as Betty Fairfield
Claire James as Princess Alura [Chs. 3-6, 9-11, 15]
Joe Brown Jr. as Billy Fairfield (as Joe Brown)
Pierre Watkin as Uncle Jim Fairfield
Wheeler Oakman as Prof. Hobart Zorn
Jack Ingram as Henchman Blair
Eddie Parker as Henchman Slade