 Robert MitchumDan Milner | Dan Milner |
 Jane RussellLenore Brent | Lenore Brent |
 Vincent PriceMark Cardigan | Mark Cardigan |
 Tim HoltBill Lusk | Bill Lusk |
 Charles McGrawThompson / Narrator | Thompson / Narrator |
 Marjorie ReynoldsHelen Cardigan | Helen Cardigan |
 Raymond BurrNick Ferraro | Nick Ferraro |
 Leslie BanningJennie Stone | Jennie Stone |
 Jim BackusMyron Winton | Myron Winton |
 Philip Van ZandtJose Morro | Jose Morro |
 John MylongMartin Krafft | Martin Krafft |
 Carleton G. YoungGerald Hobson | Gerald Hobson |
 Anthony CarusoTony (uncredited) | Tony (uncredited) |
 Dorothy AbbottCard Player (uncredited) | Card Player (uncredited) |
 Tol AveryFat Hoodlum (uncredited) | Fat Hoodlum (uncredited) |
 Paul FreesCorley (uncredited) | Corley (uncredited) |
 Peter BroccoThompson's First Henchman (uncredited) | Thompson's First Henchman (uncredited) |
 John DaheimSeaman (uncredited) | Seaman (uncredited) |
 Sol GorssSeaman (uncredited) | Seaman (uncredited) |
 Stacy HarrisHarry (uncredited) | Harry (uncredited) |
 Alberto MorinLt. Rodriguez (uncredited) | Lt. Rodriguez (uncredited) |
| BBilly NelsonShip's Captain (uncredited) | Ship's Captain (uncredited) |
 Joey RayCard Player (uncredited) | Card Player (uncredited) |
 Dale Van SickelSeaman (uncredited) | Seaman (uncredited) |
| SSam BalterRadio Broadcaster (voice) (uncredited) | Radio Broadcaster (voice) (uncredited) |
| HHoward BattPilot (uncredited) | Pilot (uncredited) |
| RRichard BergrenMilton Stone (uncredited) | Milton Stone (uncredited) |
| EEdward BibyLodge Guest (uncredited) | Lodge Guest (uncredited) |
| DDanny BorzageLodge Bartender (uncredited) | Lodge Bartender (uncredited) |
| MMary BrewerLodge Guest (uncredited) | Lodge Guest (uncredited) |
