"U.S. spies catch a Moscow-born U.S. citizen helping spies, and they force him to counterspy."
Ernest Borgnine
as Boris Mitrov
Kerwin Mathews
as Bob Avery
Colleen Dewhurst
as Helen Benson
Alexander Scourby
as Colonel Vadja Kubelov
Glenn Corbett
as Frank Sanford
Hanna Landy
as Bess Harris
Vladimir Sokoloff
as Papa of Boris Mitrov
Friedrich Joloff
as Gen. Nikolai Chapayev
Holger Hagen
as Hans Grünwald
Reginald Pasch
as Otto Bergman
Eva Pflug
as Tanja Rosnova
Richard Kendrick
as Inspector Jenkins
Ed Prentiss
as
Bob Iller
Carl Jaffe
Michael Mellinger
Clete Roberts
as Narrator (voice)
Seymour Cassel
James T. Callahan
Lisa Golm
Ted Knight
Eve McVeagh
André de Toth
Director
John H. Kafka
Screenplay
Virginia Shaler
Lothar Wolff
Co-Producer
George Duning
Music
Al Clark
Editor
Louis De Rochemont
Producer
Albert Benitz
Director of Photography
Pierre Pioncarde
Charles Lawton Jr.
Gayne Rescher
