02/09/1948
A security leak is found at a Southern California atomic plant. The authorities stand in fear that the information leaked would go to a hostile nation. To investigate the case more efficiently, Dan O'Hara, an FBI agent, and Philip Grayson, a Scotland Yard sleuth, join forces. Will they manage to stop the spy ring from achieving their aim?
Louis Hayward
as Philip 'Scotty' Grayson
Dennis O'Keefe
as Daniel F. O'Hara
Louise Allbritton
as Dr. Anastasia 'Toni' Neva
Carl Esmond
as Dr. Ritter von Stolb
Onslow Stevens
as Igor Braun
Raymond Burr
as Krebs
Art Baker
as Dr. Frederick Townsend
Lowell Gilmore
as Dr. William Forrest
Philip Van Zandt
as Anton Radchek
Charles Evans
as Dr. Homer Allen
Frank Ferguson
as Carl Bemish
Reed Hadley
as Narrator (voice)
Ray Teal
as Police Sergeant
William Tannen
as FBI Chemist
Gale Storm
as Voice on Tape Recorder
Arthur Space
as Mr. North
Tamara Shayne
as Mrs. Ecko, the Landlady
Keith Richards
as FBI Agent Miller
Grandon Rhodes
as Adolph Mizner
Steve Pendleton
as Police Detective Gaines
Howard Negley
as Feodore
Jimmy Lloyd
as FBI Agent Alison
Myron Healey
as FBI Agent Thompson
John Hamilton
as G.W. Hunter
Paul Bryar
as
Fred Coby
as
Bert Davidson
as
Marten Lamont
as
Lee Phelps
as
Suzanne Ridgway
as
Arthur Tovey
as
Crane Whitley
as
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