A Russian scientist working for the British is suspected of being a "plant", sent to monitor nuclear secrets on behalf of the communists.



(screenplay), (screenplay) | 2 more credits »


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Cast overview:
Stephen Murray ...
Boris Turganev
Alan Wheatley ...
Paul Skelton
Richard Colman
John Bown ...
John Baxter
Jack Watson ...
Capt. Foster
Ernest Clark ...
Dr. Pembury
Peter Gilmore ...
Tom Masters
Dr. Asafu
Ellen Pollock ...
Dr. Morrell
Hugh Morton ...
Sir Gilbert Saunders
Basil Dignam ...
Richard Horton
Hamilton Dyce ...
Airport Controller
Michael Peake ...
Barnes (Skeltons Manservant)


A Russian scientist working for the British is suspected of being a "plant", sent to monitor nuclear secrets on behalf of the communists.

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Release Date:

19 August 1964 (USA)  »

Also Known As:

X 21 spionaggio atomico  »

Company Credits

Production Co:

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Technical Specs


Sound Mix:

(Westrex Recording System)

Aspect Ratio:

1.37 : 1
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Did You Know?


The last film of June Thorburn. See more »


Sir Gilbert Saunders: Professor, just why are you asking for asylum here?
Boris Turganev: My reasons are quite simple, Sir - I want to stay here and make England my home.
Sir Gilbert Saunders: That may be... but things aren't quite as easy as you seem to think. We can't take everybody just because they want to come. There's got to be some good reason. And so far, you haven't given one.
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User Reviews

June Thorburn's final film
26 April 2013 | by (United Kingdom) – See all my reviews

As noted by the other reviewers, Master Spy is no classic, but it is a must-see for fans of British B movies of the era. The story is fairly routine, but is much enlivened by the cast - Alan Wheatley (excellent as always), John Carson (with his James Mason-sound-alike voice!), Peter Gimore playing his role to perfection, and most interestingly the tragic June Thorburn cast against type as a scientist who becomes dangerously involved in the espionage plot. With her shorter, blonder hair, Miss Thorburn here is a dead ringer for Angela Douglas, a likeness I had never noticed before, and she is totally credible and brings much to what could have been a nothing part. Very sadly she died in a plane crash a couple of years after completing this, her final film.

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