The Master Key
“13 Chapters of Terrific Thrills!”
Synopsis
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
Top Cast
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Milburn Stone
Agent Tom Brant
Jan Wiley
Janet Lowe
Dennis Moore
Jack Ryan
Addison Richards
Gerhard Doenitz / Garret Donahue
Byron Foulger
Prof. Elwood Henderson
Maris Wrixon
Dorothy Newton
Sarah Padden
Aggie
George Lynn
Herman
Russell Hicks
Police Chief Michael J. O'Brien
Roland Varno
Arnold Hoffman
Lash LaRue
Migsy
Jerry Shane
Dan
Neyle Morrow
Spike
John Eldredge
Walter Stark
Release History & Theatrical Window
April 24, 1945
Wide Cinema Exhibition
Key Information & Fast Facts
- Director
- Lewis D. Collins, Ray Taylor
- Screenplay & Story
- Joseph O'Donnell, George H. Plympton, Ande Lamb
- Original Title
- The Master Key
- Country of Origin
- United States of America
- Spoken Languages
- English
- Runtime
- 3h 46m
- Production Studios
- Universal Pictures
Creative Leadership & Key Crew
Lewis D. Collins, Ray Taylor
Joseph O'Donnell, George H. Plympton, Ande Lamb, Dwight V. Babcock, Jack Natteford
William A. Sickner, Maury Gertsman
Ace Herman, Edgar Zane, Irving Birnbaum
Morgan Cox
Department Leadership Roster
Lewis D. Collins
Director
Morgan Cox
Producer
Ray Taylor
Director
Ace Herman
Editor
Edgar Zane
Editor
Irving Birnbaum
Editor
Jack Dolan
Editor
Joseph O'Donnell
Screenplay
George H. Plympton
Screenplay
Alvin Todd
Editor
Ande Lamb
Screenplay
William A. Sickner
Director of Photography
Maury Gertsman
Director of Photography
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
NR: Not Rated — Evaluated outside standard classification boards.
International Certification Matrix
Not Rated — Evaluated outside standard classification boards.
Production Stills & Gallery
Official cinematic photography and background stills for The Master Key.
Featured In Curated Collections
Editorial lists, community rankings, and cinematic collections featuring The Master Key.
War: World War II
Auto-filled from Letterboxd lists
Spy-Thriller
list_War
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Spy Films
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Frequently Asked Questions About The Master Key
Quick factual answers about cast, synopsis, director, box office, and release information.
What is The Master Key about?
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
Who directed The Master Key?
The Master Key was directed by Lewis D. Collins, Ray Taylor.
Who stars in The Master Key?
The principal cast of The Master Key includes Milburn Stone, Jan Wiley, Dennis Moore, Addison Richards, Byron Foulger.
When was The Master Key released and how long is it?
The Master Key was released in 1945 with a total runtime of 3h 46m.
What is the age rating and content advisory for The Master Key?
The Master Key holds official age classifications: US: NR (Not Rated — Evaluated outside standard classification boards.).