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The Master Key was released on April 24, 1945 but we couldn't find it on any streaming service yet. Rights can change — try again later.
Get the app to be notifiedCast · Directed by Lewis D. Collins
MS

Milburn Stone
Agent Tom Brant
JW

Jan Wiley
Janet Lowe
DM

Dennis Moore
Jack Ryan
AR

Addison Richards
Gerhard Doenitz / Garret Donahue
BF

Byron Foulger
Prof. Elwood Henderson
MW

Maris Wrixon
Dorothy Newton
SP

Sarah Padden
Aggie
GL

George Lynn
Herman
RH

Russell Hicks
Police Chief Michael J. O'Brien
RV

Roland Varno
Arnold Hoffman
LL

Lash LaRue
Migsy
JS
Jerry Shane
Dan
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The Master Key — streaming FAQ
Which OTT platform streams The Master Key?
The Master Key isn't streaming anywhere in Canada yet.
Is The Master Key on Netflix?
No, The Master Key is not on Netflix in Canada as of November 2026.
Is The Master Key on Amazon Prime Video?
No, The Master Key isn't on Amazon Prime Video in Canada right now.
Where can I watch The Master Key for free?
The Master Key isn't streaming in Canada yet, so there's no way to watch it free at the moment.
What is the OTT release date for The Master Key?
The Master Key hasn't started streaming in Canada yet. Based on the typical 6–8 week theatrical-to-streaming window, we estimate it will arrive around June 12, 1945. This is a prediction, not a confirmed date.


















