 Humphrey BogartJean Matrac | Jean Matrac |
 Claude RainsCapt. Freycinet | Capt. Freycinet |
 Michèle MorganPaula Matrac | Paula Matrac |
 Philip DornRenault | Renault |
 Sydney GreenstreetMaj. Duval | Maj. Duval |
 Peter LorreMarius | Marius |
 George TobiasPetit | Petit |
 Helmut DantineGarou | Garou |
 John LoderManning | Manning |
 Victor FrancenCapt. Patain Malo | Capt. Patain Malo |
 Vladimir SokoloffGrandpere | Grandpere |
 Eduardo CiannelliChief Engineer | Chief Engineer |
 Corinna MuraSinger | Singer |
 Fred AldrichSeaman (uncredited) | Seaman (uncredited) |
 Charles AndreNavigator (uncredited) | Navigator (uncredited) |
| RRobert AppelGuard (uncredited) | Guard (uncredited) |
 John BagniSeaman (uncredited) | Seaman (uncredited) |
| AAlbert BaldoSeaman (uncredited) | Seaman (uncredited) |
 Bobby BarberFrenchman (uncredited) | Frenchman (uncredited) |
| CCarmen BerettaPetit's Wife (uncredited) | Petit's Wife (uncredited) |
 Monte BlueSecond Mate (uncredited) | Second Mate (uncredited) |
| WWalter BonnPrison Official (uncredited) | Prison Official (uncredited) |
| FFrederic BrunnBijou (uncredited) | Bijou (uncredited) |
| PPeter CamlinFrench Sergeant (uncredited) | French Sergeant (uncredited) |
 André CharlotJudge (uncredited) | Judge (uncredited) |
 Hans ConriedJourdain (uncredited) | Jourdain (uncredited) |
 Marcelle CordayGrocer's Wife (uncredited) | Grocer's Wife (uncredited) |
 Harry CordingChief Guard (uncredited) | Chief Guard (uncredited) |
 Adrienne D'AmbricourtRosalie (uncredited) | Rosalie (uncredited) |
| FFranklin D'AmourSeaman (uncredited) | Seaman (uncredited) |
