 | Glenn Ford als Martin Ordway |
 | Alida Valli als Carla Alton (as Valli) |
 | Claude Rains als Paul Delambre |
 | Oskar Homolka als Andreas (as Oscar Homolka) |
 | Cedric Hardwicke als Nicholas Radcliffe |
 | Lloyd Bridges als Hein |
 | June Clayworth als Mme. Astrid Delambre |
 | Lotte Stein als Frau Andreas |
 | Edit Angold als Frau Knubel (uncredited) |
 | Fred Essler als Knubel (uncredited) |
| Paul Jarrico | Screenplay |
| Ted Tetzlaff | Director |
| James Ramsey Ullman | Novel |
| Sid Rogell | Producer |
| Ray Rennahan | Director of Photography |
| Samuel E. Beetley | Editor |
| Roy Webb | Original Music Composer |
| Mel Berns | Makeup Artist |
| Rod Tolmie | Still Photographer |
| Fred Bentley | Camera Operator |
| John Livesley | Grip |
