"A British army officer becomes fascinated by the portrait of a young woman. He travels to Germany to find her, only to discover that she is suffering from amnesia."
Mai Zetterling
as Lidia
Robert Beatty
as Campbell Reid
Guy Rolfe
as Major Lawrence
Herbert Lom
as Fritz Kottler Hendlemann
Patrick Holt
as Ferguson
Arnold Marlé
as Professor Franz Menzel
Sybille Binder
as Eitel Hendlemann
Thora Hird
as Mrs. Skinner
Gerard Heinz
as Heine
Yvonne Owen
as Helen
George Thorpe
as Brigadier
Philo Hauser
as Hans Ackermann
John Blythe
as Johnnie
Cyril Chamberlain
as Supervisor
Betty Lynne
as Interpreter
Nelly Arno
as Anna Skutetsky
Richard Molinas
as Man in Crowd with Anna
Donald Sinden
as Minor Role
Hugo Schuster
Eric Messiter
as Coroner
Dorothea Glade
as Hildegard Schmidt
Michael Hordern
as Johnson
Pete Murray
as Lieutenant Keith
Gordon Bell
as Captain Roberts
Sam Kydd
as Army Truck Driver
Eric Pohlmann
as Search Group Leader
Anthony Steel
as Bridegroom
Arthur Hambling
as Coroner's Officer (uncredited)
Paul Hansard
as Fritz (uncredited)
Dennis Harkin
as Richard (uncredited)
Charles Rolfe
as Art Gallery Attendant (uncredited)
Dennis Vance
as Orderly, Officer's Mess (uncredited)
Arthur Young
as Club Pianist (uncredited)
J. Arthur Rank
Producer
Sydney Box
Writer
Vladimir Sagovsky
Editor
Antony Darnborough
Terence Fisher
Director
David Evans
Muriel Box
Frank Harvey
John Elphick
Art Direction
Joan Ellacott
Costume Design
George Provis
Jack Asher
Director of Photography
Benjamin Frankel
Original Music Composer
Fred Mannin
Scenic Artist
Arthur Alcott
Production Controller
Douglas Peirce
Production Manager
Muir Mathieson
Music Director
Bill Salter
Sound Recordist
W.T. Partleton
Makeup Artist
Ernest Morris
Assistant Director
Al Rhind
Len Harris
Camera Operator