Directed by
| Alan James | ... | (archive footage) |
| William Witney | ... | (archive footage) |
Writing Credits
| Barry Shipman | ... | (screenplay) (archive footage) and |
| Franklin Adreon | ... | (screenplay) (archive footage) and |
| Winston Miller | ... | (screenplay) (archive footage) and |
| Edward Lynn | ... | (screenplay) (archive footage) |
| Morgan Cox | ... | (original story) (archive footage) and |
| Ronald Davidson | ... | (original story) (archive footage) |
Cast (in credits order) complete, awaiting verification
| Ralph Byrd | ... | Lt. Terry Kent (archive footage) | |
| Bela Lugosi | ... | Boroff (archive footage) | |
| Maxine Doyle | ... | Jean Norman (archive footage) | |
| Richard Alexander | ... | Thorg (archive footage) | |
 |
Lee Ford | ... | Snapper McGee (archive footage) |
| John Picorri | ... | G.A. Rackerby (archive footage) | |
| Lawrence Grant | ... | Rabinisi (archive footage) | |
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Thomas Carr | ... | Ensign Jim Kent (archive footage) |
| Carleton Young | ... | Dodds (archive footage) | |
| Allen Connor | ... | Dick Norman (archive footage) | |
| George Chesebro | ... | L.H. Degardo (archive footage) | |
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Ranny Weeks | ... | Weis (archive footage) |
| Rest of cast listed alphabetically: | |||
| Roy Barcroft | ... | Cave Thug (archive footage) (uncredited) | |
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Earle D. Bunn | ... | Kelp Plant Thug (archive footage) (uncredited) |
| Ed Cassidy | ... | Patrol Boat Captain (archive footage) (uncredited) | |
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Jack Daley | ... | Captain of the 'Carfax' (archive footage) (uncredited) |
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Forrest Dillon | ... | Sea Wolf Thug (archive footage) (uncredited) |
| Lester Dorr | ... | Radium Technician (archive footage) (uncredited) | |
| Robert Dudley | ... | Pierpont Station Agent (archive footage) (uncredited) | |
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Jerry Frank | ... | Smuggling Launch Thug (archive footage) (uncredited) |
| Joseph W. Girard | ... | Admiral at Awards Ceremony (archive footage) (uncredited) | |
| Kit Guard | ... | Kelp Plant Thug (archive footage) (uncredited) | |
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Henry Hale | ... | Morovanian Scientist (archive footage) (uncredited) |
| Jack Ingram | ... | Seaman (archive footage) (uncredited) | |
| Rex Lease | ... | Coast Guard Orderly (archive footage) (uncredited) | |
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Alexander Leftwich | ... | Morovanian Emissary (archive footage) (uncredited) |
| Frankie Marvin | ... | Gang Sniper (archive footage) (uncredited) | |
| James Millican | ... | Dock Thug (archive footage) (uncredited) | |
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King Mojave | ... | Ambulance Driver-Thug (archive footage) (uncredited) |
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Edwin Mordant | ... | Dr. Meade (archive footage) (uncredited) |
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Michael Morgan | ... | Coast Guardsman Moore (archive footage) (uncredited) |
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Henry Otho | ... | Mate on the 'Carfax' (archive footage) (uncredited) |
| Herbert Rawlinson | ... | Cmdr. Boyle (archive footage) (uncredited) | |
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Loren Riebe | ... | Cave Thug (archive footage) (uncredited) |
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Vinegar Roan | ... | Dock Thug (archive footage) (uncredited) |
| Buddy Roosevelt | ... | Patrol Boat Lieutenant (archive footage) (uncredited) | |
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Reed Sheffield | ... | Cave Thug (archive footage) (uncredited) |
| Harry Strang | ... | Phone Company Code Expert (archive footage) (uncredited) | |
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Duke Taylor | ... | Loader (archive footage) (uncredited) |
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Tom Ung | ... | Chinese Cook on the 'Sea Wolf' (archive footage) (uncredited) |
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Frank Wayne | ... | Cave Thug (archive footage) (uncredited) |
| Dan Wolheim | ... | Slarsen, Captain of the 'Sea Wolf' (archive footage) (uncredited) | |
| Duke York | ... | Sea Wolf Thug (archive footage) (uncredited) | |
Produced by
| Robert M. Beche | ... | supervising producer (archive footage) (as Robert Beche) |
| Sol C. Siegel | ... | associate producer (archive footage) |
Cinematography by
| William Nobles | ... | (archive footage) |
Editing by
| Edward Todd | ... | (archive footage) |
| Helene Turner | ... | (archive footage) |
Sound Department
| Terry Kellum | ... | sound engineer: archive footage |
Stunts
| Yakima Canutt | ... | stunt coordinator (archive footage) (uncredited) |
| George Montgomery | ... | stunts (archive footage) (uncredited) |
| Duke York | ... | stunts (archive footage) (uncredited) |
Editorial Department
| Murray Seldeen | ... | supervising editor: archive footage |
Music Department
| Raoul Kraushaar | ... | musical director: archive footage |
| Karl Hajos | ... | composer: stock music (archive footage) (uncredited) |
| Hugo Riesenfeld | ... | composer: stock music (archive footage) (uncredited) |
