Dirección: Alfred Hitchcock
Durante la Primera Guerra Mundial, a tres agentes secretos ingleses se les asigna la misión de asesinar a un misterioso espía alemán. A dos de ellos se les planteará el conflicto entre el deber de cumplir la misión y sus conciencias.
Madeleine Carroll
Elsa Carrington
John Gielgud
Richard Ashenden / Edgar Brodie
Peter Lorre
The General
Robert Young
Robert Marvin
Percy Marmont
Caypor
Florence Kahn
Mrs. Caypor
Charles Carson
"R"
Lilli Palmer
Lilli
Denys Blakelock
Man (uncredited)
Sebastian Cabot
Man (uncredited)
Tom Helmore
Colonel Anderson (uncredited)
Andreas Malandrinos
Manager (uncredited)
Howard Marion-Crawford
Karl (uncredited)
Rène Ray
Maid (uncredited)
Michael Redgrave
Army Officer (uncredited)
Michael Rennie
Army Captain (uncredited)
Michel Saint-Denis
Coachman (uncredited)
Madeleine Carroll
Elsa Carrington
John Gielgud
Richard Ashenden / Edgar Brodie
Peter Lorre
The General
Robert Young
Robert Marvin
Percy Marmont
Caypor
Florence Kahn
Mrs. Caypor
Charles Carson
"R"
Lilli Palmer
Lilli
Denys Blakelock
Man (uncredited)
Sebastian Cabot
Man (uncredited)
Tom Helmore
Colonel Anderson (uncredited)
Andreas Malandrinos
Manager (uncredited)
Howard Marion-Crawford
Karl (uncredited)
Rène Ray
Maid (uncredited)
Michael Redgrave
Army Officer (uncredited)
Michael Rennie
Army Captain (uncredited)
Michel Saint-Denis
Coachman (uncredited)
Madeleine Carroll
Elsa Carrington
John Gielgud
Richard Ashenden / Edgar Brodie
Peter Lorre
The General
Robert Young
Robert Marvin
Percy Marmont
Caypor
Florence Kahn
Mrs. Caypor
Charles Carson
"R"
Lilli Palmer
Lilli
Denys Blakelock
Man (uncredited)
Sebastian Cabot
Man (uncredited)
Tom Helmore
Colonel Anderson (uncredited)
Andreas Malandrinos
Manager (uncredited)
Howard Marion-Crawford
Karl (uncredited)
Rène Ray
Maid (uncredited)
Michael Redgrave
Army Officer (uncredited)
Michael Rennie
Army Captain (uncredited)
Michel Saint-Denis
Coachman (uncredited)