"In this Cold War drama, a woman suspects her son is a Communist spy."
Helen Hayes
as Lucille Jefferson
Van Heflin
as Stedman
Dean Jagger
as Dan Jefferson
Robert Walker
as John Jefferson
Minor Watson
as Dr. Carver
Frank McHugh
as Father O'Dowd
Richard Jaeckel
as Chuck Jefferson
James Young
as Ben Jefferson
Jimmie Dundee
as Taxi Driver (uncredited)
Douglas Evans
as Government Employee (uncredited)
Nancy Hale
as Nurse (uncredited)
Sam Harris
as Professor at Graduation Ceremony (uncredited)
Todd Karns
as Bedford (uncredited)
Leo McCarey
as John Jefferson (voice) (uncredited)
Lee Miller
as Policeman at Shooting Scene (uncredited)
David Newell
as FBI Agent (uncredited)
Vera Stokes
as Secretary (uncredited)
Fred Sweeney
as Cleaner (uncredited)
Margaret Wells
Screenplay
Harry Stradling Sr.
Director of Photography
John Lee Mahin
Adaptation
Producer
Director
Story
Robert Emmett Dolan
Original Music Composer
Marvin Coil
Editor
William Flannery
Art Direction
Gene Merritt
Sound Recordist
Hal Pereira
Emile Kuri
Set Decoration
Edith Head
Costume Design
Sam Comer
Myles Connolly
Robert Russell Bennett
Orchestrator
Gordon Jennings
Visual Effects
Farciot Edouart
Wally Westmore
Makeup Artist
Gene Garvin
Alvin Ganzer
Assistant Director
