Jack Armstrong_
"RADIO'S ALL-AMERICAN BOY LEAPS INTO AN ALL-THRILL, ALL-TIME HIGH IN SERIAL 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.
Starring
John Hart, Rosemary La Planche, Claire James
Updated Feb 16, 2026
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Year context
Jack Armstrong was released 79 years ago in 1947.
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.
Jack Armstrong is a Adventure film with a runtime of 5h 0m.
CAST (9)
John Hart
Jack Armstrong
Rosemary La Planche
Betty Fairfield
Claire James
Princess Alura [Chs. 3-6, 9-11, 15]
Joe Brown Jr.
Billy Fairfield (as Joe Brown)
Pierre Watkin
Uncle Jim Fairfield
Wheeler Oakman
Prof. Hobart Zorn
Jack Ingram
Henchman Blair
Eddie Parker
Henchman Slade
Hugh Prosser
Vic Hardy
DETAILS
FREQUENTLY ASKED QUESTIONS
What is Jack Armstrong about?
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.
How long is Jack Armstrong?
Jack Armstrong has a runtime of 300 minutes (5h 0m).
Who stars in Jack Armstrong?
The cast of Jack Armstrong includes John Hart, Rosemary La Planche, Claire James, Joe Brown Jr., Pierre Watkin.
GENRES (1)
Adventure