A ship's officer is sentenced to Devil's Island for murder after a fatal brawl.
| Actor | Role |
|---|---|
 Sally EilersClaire Martel | Claire Martel |
 Donald WoodsJoel Grant / Joseph Elmer | Joel Grant / Joseph Elmer |
 Eduardo CiannelliDr. Victor Martel | Dr. Victor Martel |
 Victor KilianGuissart | Guissart |
 Charles HaltonCommandant | Commandant |
 Dick CurtisJules | Jules |
 John TyrrellGerault | Gerault |
 Eddie LaughtonBrisson | Brisson |
 Edmund CobbQuarry Guard | Quarry Guard |
 Robert WarwickGovernor | Governor |
 Lloyd BridgesRene (uncredited) | Rene (uncredited) |
 Byron FoulgerPresidente Judge (uncredited) | Presidente Judge (uncredited) |