The younger brother of an officer in a secret government code-breaking unit gets involved with a gang of spies and a beautiful double agent.
Leon Ames
Maj. Philip Waring
Charlotte Wynters
Helen Lane
Joan Woodbury
Therese Brahm
Don Dillaway
Paul Waring
Gustav von Seyffertitz
Albert Grood
Tenen Holtz
Simon Herrick
Walter Bonn
Anton Decker
Si Wills
Lt. Clarke
George Lynn
Lt. Tydall (as Peter Lynn)
Jason Robards Sr.
Ellsworth
Sidney Miller
Jimmy
Hooper Atchley
Cmdr. Nash
Robert Frazer
Paul's Counsel
Billy Atkins
Bobby Barber
Stanley Blystone
Army Lieutenant
John Bohn
Thomas Carr
Rollo Dix
Bud Geary
J.C. Givern
Pete Gordon
Ray Hanson
Michael Jeffers
Timothy J. Lonergan
Charles McAvoy
Charles Meakin
Ray Meeker
Hercules Mendez
Rudolf Myzet
Jeanette Noeson
Little Girl
Frank O'Connor
Bud O'Farrell
Virgil Owens
Franklin Parker
Announcer
Bruce Randall
Joseph Romantini
Robert Wormer
Duke Shearer
J. Scott Smart
Carlson
William Stahl
Carl Stockdale
Judge
Tudor Williams
Norfolk Officer
Bert Young
Jack Grant
Charles Lamont
Director
Arthur Hoerl
Writer
Story
Monroe Shaff
Ralph Berger
Art Direction
Franklyn Warner
Producer
Bernard Loftus
Editor
W.H. McCrary
Costume Design
Associate Producer
Arthur Martinelli
Cinematography
Bert Eason
Assistant Camera
Clem Jones
Second Assistant Director
