| Person | Type | Job | Role(s) |
|---|---|---|---|
 Archie Marshek | Crew | Editing | Editor |
 Edward Dmytryk | Crew | Directing | Director |
Edward E. Paramore Jr. | Crew | Writing | Writer |
Eugene J. Zukor | Crew | Production | Producer |
Harry Fischbeck | Crew | Camera | Director of Photography |
Robert Grant | Crew | Writing | Story |
Dewey Wrigley | Crew | Camera | Director of Photography |
Albert D'Arno | Cast | Submarine Commander | |
Anthony Marsh | Cast | Actor | Radio Operator on the Aleria |
 Ben Taggart | Cast | Actor | Cop |
 Carole Landis | Cast | Actress | June McCarthy |
 Darryl Hickman | Cast | Actor | Benny |
David Cavendish | Cast | Actor | Gunnery Officer |
 Dick Winslow | Cast | Actor | Messenger |
Donald Grayson | Cast | Ernst, German Seaman | |
Edwin Brian | Cast | Boy | |
 Emmett Vogan | Cast | Actor | Cop |
 Eric Alden | Cast | Actor | August - German Seaman |
 Ernest Whitman | Cast | Actor | First Fisherman |
 Ferdinand Schumann-Heink | Cast | Actor | Submarine Captain |
 George Magrill | Cast | Actor | Man on Wharf |
Gohr Van Vleck | Cast | Captain Van Wyck | |
 Hans Fuerberg | Cast | Radio Man | |
 Hans Schumm | Cast | Actor | Sentry |
Harry A. Bailey | Cast | Sugar Daddy | |
 Harry Depp | Cast | Actor | Mousey Little Man |
 Henry Victor | Cast | Actor | Cmdr. Bulow |
 Henry Wilcoxon | Cast | Actor | Captain Jimmy Madden |
Henry Zynda | Cast | Submarine Commander | |
Jack Chapin | Cast | Messboy | |
Jack Roberts | Cast | Jack, American Seaman | |
 Jean Del Val | Cast | Actor | Captain Benoit |
Jess Lee Brooks | Cast | Second Fisherman | |
 John Indrisano | Cast | Actor | Bo's'n |
 Kathleen Howard | Cast | Actress | Maggie Clancy |
 Kay Linaker | Cast | Actress | Flossie La Mare |
 Kurt Kreuger | Cast | Actor | Franz, German Seaman |
Larry Lawson | Cast | Larry, American Seaman | |
 Leonard Willey | Cast | Actor | British Cruiser Captain |
 Leyland Hodgson | Cast | Actor | Listener |
 Louis Adlon | Cast | Lerner | |
 Matthew Boulton | Cast | Actor | Captain Howard |
 Monte Blue | Cast | Actor | Captain Norberg |
 Onslow Stevens | Cast | Actor | Carl Cutler |
 Otto Reichow | Cast | Actor | Siegfried, German Seaman |
Phil Warren | Cast | Sparks, Radio Operator | |
Philip Winter | Cast | Actor | Chalmers |
 Pierre Watkin | Cast | Actor | Straker |
 Reed Howes | Cast | Actor | Hughes, Carl's Chauffeur |
 Roland Drew | Cast | Actor | Navigating Officer |
 Roland Varno | Cast | Actor | Lt. Schmidt |
Rudolf Steinboeck | Cast | Nick, German Seaman | |
 Sidney D'Albrook | Cast | Actor | Man on Wharf |
 Sigfrid Tor | Cast | Actor | Albert, German Seaman |
 Sven Hugo Borg | Cast | Actor | Sven |
Thomas Mizer | Cast | German Officer | |
 Vernon Downing | Cast | Actor | Martin |
Wally Maher | Cast | Actor | Jenkins |
Wally Rairden | Cast | Actor | Blake, 3rd Mate |
 Wanda McKay | Cast | Actress | Lois |
 Willy Castello | Cast | Actor | Radio Operator |
Willy Kaufman | Cast | Actor | Lt. Felder |
Edward Groag | Cast | Herman, German Seaman | |
 Chuck Hamilton | Cast | Actor | Man on Wharf |
 Norma Gene Nelson | Cast | Annette | |
 Douglas Grant | Cast | Hans, German Seaman | |
Holger Bendixen | Cast | Wilheim, German Seaman | |
Worth Crouch | Cast | Quartermaster | |
Nicholas Vehr | Cast | Adolph, German Seaman | |
Chester Walker | Cast | Karl, German Seaman | |
Tom Wintle | Cast | Man on Wharf | |
| Person | Type | Job | Role(s) |
