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)