| Person | Type | Job | Role(s) |
|---|---|---|---|
 Cedric Gibbons | Crew | Art | Art Direction |
 David Snell | Crew | Sound | Music |
 Dolly Tree | Crew | Costume & Make-Up | Costume Design |
 Douglas Shearer | Crew | Sound | Sound Director |
Edward Ward | Crew | Sound | Music |
 Edwin B. Willis | Crew | Art | Set Decoration |
Frank E. Hull | Crew | Editing | Editor |
 George B. Seitz | Crew | Directing | Director |
Harvey S. Haislip | Crew | Writing | Screenplay, Story |
J. Walter Ruben | Crew | Production | Producer |
 John F. Seitz | Crew | Camera | Director of Photography |
Ralph Wheelwright | Crew | Writing | Story |
Urie McCleary | Crew | Art | Assistant Art Director |
Fred Valles | Crew | Costume & Make-Up | Costume Design |
Wells Root | Crew | Writing | Screenplay |
 Addison Richards | Cast | Actor | Admiral Ross |
 Al Bridge | Cast | Actor | Fisherman (uncredited) |
Allen Fox | Cast | Actor | Lookout (uncredited) |
Arthur Belasco | Cast | Actor | Fisherman (uncredited) |
 Budd Fine | Cast | Actor | Survivor (uncredited) |
 Carl Esmond | Cast | Actor | U-Boat Captain |
 Charles Jordan | Cast | Actor | Signalman (uncredited) |
 Chester Morris | Cast | Actor | 'Rocky' Blake |
 Claire McDowell | Cast | Actress | Nurse (uncredited) |
Clarke Jennings | Cast | Wireless Operator (uncredited) | |
 Clem Bevans | Cast | Actor | 'Cap' Finch |
 Don Castle | Cast | Actor | Radio Operator (uncredited) |
 Doodles Weaver | Cast | Actor | Sailor (uncredited) |
 Douglass Dumbrille | Cast | Actor | District Commander |
 Earle Hodgins | Cast | Actor | Fisherman (uncredited) |
Eddie Hart | Cast | Actor | Fisherman (uncredited) |
 Edgar Dearing | Cast | Actor | Petty Officer (uncredited) |
 Edward Hearn | Cast | Actor | Fisherman (uncredited) |
 Emmett Vogan | Cast | Actor | Junior Officer Standing by Map (uncredited) |
 Ferdinand Schumann-Heink | Cast | Actor | German Operator (uncredited) |
 Forbes Murray | Cast | Actor | Naval Aide (uncredited) |
 Frank Faylen | Cast | Actor | Recruiting Officer (uncredited) |
 Frank Orth | Cast | Actor | Old Sailor in Bilge Area (uncredited) |
Frederick Lee | Cast | Sailor (uncredited) | |
Hans Joby | Cast | U-Boat Petty Officer | |
 Hans Schumm | Cast | Actor | German Sailor Looking for Wireless (uncredited) |
Hans von Morhart | Cast | Actor | German Sailor (uncredited) |
Harold Schlickenmayer | Cast | Actor | Engineer (uncredited) |
 Harry Semels | Cast | Actor | Cook on Tugboat (uncredited) |
 Harry Strang | Cast | Actor | Shore Patrol Sailor (uncredited) |
 Henry Hunter | Cast | Actor | Ensign Dyer |
 Henry Victor | Cast | Actor | German U-Boat Officer |
 Howard Hickman | Cast | Actor | Surgeon (uncredited) |
Jack Chapin | Cast | Sailor (uncredited) | |
Jack Kennedy | Cast | Actor | Fisherman (uncredited) |
 Joe De Stefani | Cast | Fisherman (uncredited) | |
 John Qualen | Cast | Actor | Milo |
 Jonathan Hale | Cast | Actor | Admiral Girard |
 Joseph E. Bernard | Cast | Actor | Fisherman (uncredited) |
 Jules Cowles | Cast | Actor | Man with Finch (uncredited) |
Larry McGrath | Cast | Actor | Radio Operator (uncredited) |
 Lee Shumway | Cast | Actor | Sailor (uncredited) |
Leigh De Lacey | Cast | Actress | Mrs. Gill (uncredited) |
 Leon Ames | Cast | Actor | Recruiting Officer (uncredited) |
 Lew Kelly | Cast | Actor | Sailor (uncredited) |
 Milton Kibbee | Cast | Actor | Fisherman (uncredited) |
Payne B. Johnson | Cast | Boy (uncredited) | |
Philip Morris | Cast | Actor | Fisherman (uncredited) |
 Rand Brooks | Cast | Actor | Listener (uncredited) |
 Regis Toomey | Cast | Actor | Ives |
Robert R. Stephenson | Cast | Actor | German Sailor (uncredited) |
 Roger Moore | Cast | Actor | Orderly (uncredited) |
 Syd Saylor | Cast | Actor | Wireless Operator Sending Coded Message (uncredited) |
 Tom Chatterton | Cast | Actor | Lieutenant (uncredited) |
 Virginia Grey | Cast | Actress | Susan Thorson |
 Wade Boteler | Cast | Actor | Recruiting Officer (uncredited) |
 Wallace Beery | Cast | Actor | John Thorson |
Walter Thiele | Cast | Young German Sailor (uncredited) | |
Wolfram Von Bock | Cast | German Officer (uncredited) | |
 Jack Rube Clifford | Cast | Actor | Captain (uncredited) |
Richard Elmore | Cast | Lookout (uncredited) | |
| Person | Type | Job | Role(s) |
