 | Robert Mitchum als Dr. Mark Lucas |
 | Ava Gardner als Barbara Beaurevel |
 | Melvyn Douglas als Paul Beaurevel |
 | Lucile Watson als Aunt Eula Beaurevel |
 | Janis Carter als Corinne Lucas |
 | Gordon Oliver als Clay Duchesne |
 | Basil Ruysdael als Dean Cazzley |
 | Clarence Muse als Pompey |
 | Jack Briggs als Cousin Philippe |
 | Will Wright als Luther Toplady |
 | Walter Kingsford als Coroner |
 | Steve Carruthers als Party Guest (uncredited) |
 | Kenner G. Kemp als Spectator at Inquest (uncredited) |
 | Kenneth MacDonald als Police Sergeant (uncredited) |
| Polan Banks | Novel |
| Robert Stevenson | Director |
| Leopold Atlas | Adaptation |
| Marion Parsonnet | Screenplay |
| Friedrich Hollaender | Original Music Composer |
| Harry J. Wild | Director of Photography |
| George C. Shrader | Editor |
| Mel Berns | Makeup Artist |
| Polan Banks | Producer |
| Robert Sparks | Producer |
| Sid Rogell | Executive Producer |
| Albert S. D'Agostino | Art Direction |
| Alfred Herman | Art Direction |
| Harley Miller | Set Decoration |
| Darrell Silvera | Set Decoration |
| Michael Woulfe | Costume Design |
| Clem Portman | Sound Designer |
| Phil Brigandi | Sound Designer |
