 Richard DixCapt. Will Stone | Capt. Will Stone |
 Russell WadeThird Officer Tom Merriam | Third Officer Tom Merriam |
 Edith BarrettEllen Roberts | Ellen Roberts |
 Ben BardFirst Officer Bowns | First Officer Bowns |
 Edmund GloverJacob 'Sparks' Winslow, Radioman | Jacob 'Sparks' Winslow, Radioman |
 Sir LancelotBilly Radd | Billy Radd |
 Lawrence TierneySeaman Louie Parker | Seaman Louie Parker |
 Dewey RobinsonBoats | Boats |
 Skelton KnaggsPaolo 'Finn' Lindstrom, the Mute | Paolo 'Finn' Lindstrom, the Mute |
 Paul MarionPeter, the Greek | Peter, the Greek |
 Robert BiceRaphael, the Steward | Raphael, the Steward |
| TTom BurtonWilliam Benson | William Benson |
| HHarry ClayTom McCall | Tom McCall |
 Alec CraigBlind Beggar | Blind Beggar |
| BBoyd DavisCharles Roberts | Charles Roberts |
| GGeorge DeNormandJohn Corbin, Sailor | John Corbin, Sailor |
| CCharles LungLong Jim | Long Jim |
 Shirley O'HaraEllen's Sister | Ellen's Sister |
 Herb VigranChief Engineer | Chief Engineer |
 Eddie BordenCrewman (uncredited) | Crewman (uncredited) |
| JJohn BurfordCrewman | Crewman |
 Cliff EdwardsUnnamed Officer | Unnamed Officer |
 Mike LallyCrewman | Crewman |
 Nolan LearyStenographer | Stenographer |
| NNorman MayesCarriage Driver | Carriage Driver |
| CCharles NortonGerman Sailor | German Sailor |
| RRussell OwenCrewman | Crewman |
| CCharles ReganCrewman | Crewman |
| RRobert R. StephensonGerman Sailor | German Sailor |
| SSteve WinstonAusman | Ausman |
