- Wesley Gale - Man Staring Into Window (uncredited)
- Peter Adams - Lieutenant (uncredited)
- Leon Alton - Officer at Fleet Admiral's Meeting (uncredited)
- Phil Arnold - Short Fisherman (uncredited)
- George Bruggeman - Nazi Officer (uncredited)
- Paul Busch - Sonar Man (uncredited)
- Al Checco - Sailor (uncredited)
- Cordy Clark - Giggling Girl (uncredited)
- Roydon Clark - Sailor (uncredited)
- Sayre Dearing - Passerby/Naval Officer at Meeting (uncredited)
- George DeNormand - Nazi Officer (uncredited)
- Dan Dowling - Naval Officer at Meeting (uncredited)
- Harold Dyrenforth - U-Boat Captain (uncredited)
- Louie Elias - Sailor (uncredited)
- Lisabeth Field - Miss Barnes (uncredited)
- Logan Field - Lieutenant (uncredited)
- Fred Fisher - Officer at Fleet Admiral's Meeting (uncredited)
- Walter Friedel - Nazi Officer (uncredited)
- George Golden - Naval Officer at Fleet Admiral Meeting (uncredited)
- Marv Goux - Nazi Officer (uncredited)
- John Hale - Sailor (uncredited)
- Sam Harris - Officer at Fleet Admiral's Briefing (uncredited)
- George Holmes - Scientist (uncredited)
- Joseph La Cava - Officer at Fleet Admiral's Briefing (uncredited)
- Mike Lally - Naval Officer at Meeting (uncredited)
- Harold Miller - Officer at Fleet Admiral's Briefing (uncredited)
- Charles Morton - Boat Captain (uncredited)
- Henry Norell - Sailor (uncredited)
- Jack Pepper - Sport Fishmern (uncredited)
- Montie Plyler - Helmsman (uncredited)
- Felix Reinsch - Submarine Captain (uncredited)
- Waclaw Rekwart - Passerby (uncredited)
- Heinz Sadler - Sonar Man (uncredited)
- Scott Seaton - Old Man in Shipping Office (uncredited)
- Jack Shea - Sailor (uncredited)
- John Truax - Policeman (uncredited)
- Edward Wermel - Scientist (uncredited)
- Feridun Çölgeçen - Scientist (uncredited)
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Tom Warburton, Guy Moore
Capítulo disponible en las siguientes plataformas:
