Mountain climbers in the Swiss Alps mull over past problems while trying to conquer a perilous peak.
| Actor | Role |
|---|---|
 Glenn FordMartin Ordway | Martin Ordway |
 Alida ValliCarla Alton (as Valli) | Carla Alton (as Valli) |
 Claude RainsPaul Delambre | Paul Delambre |
 Oskar HomolkaAndreas (as Oscar Homolka) | Andreas (as Oscar Homolka) |
 Cedric HardwickeNicholas Radcliffe | Nicholas Radcliffe |
 Lloyd BridgesHein | Hein |
 June ClayworthMme. Astrid Delambre | Mme. Astrid Delambre |
 Lotte SteinFrau Andreas | Frau Andreas |
| EEdit AngoldFrau Knubel (uncredited) | Frau Knubel (uncredited) |
 Fred EsslerKnubel (uncredited) | Knubel (uncredited) |