| Person | Type | Job | Role(s) |
|---|---|---|---|
 Anthony Coldeway | Crew | Writing | Original Story, Screenplay |
 Bryan Foy | Crew | Production | Producer |
Gilbert Warrenton | Crew | Camera | Director of Photography |
 Hal B. Wallis | Crew | Production | Executive Producer |
Heinz Roemheld | Crew | Sound | Original Music Composer |
Hugh Reticker | Crew | Art | Art Direction |
Jack Killifer | Crew | Editing | Editor |
 Jack L. Warner | Crew | Production | Executive Producer |
 Louis King | Crew | Directing | Director |
Milo Anderson | Crew | Costume & Make-Up | Costume Design |
 Addison Richards | Cast | Actor | John McNally |
 Barton MacLane | Cast | Actor | Andrew Beaupre |
 Ben Hendricks Jr. | Cast | Actor | Captain Harper |
 Dick Purcell | Cast | Actor | Trapped Draegerman (uncredited) |
 Eddy Chandler | Cast | Actor | Driller (uncredited) |
 Gordon Oliver | Cast | Actor | Pete Lawson |
 Helen MacKellar | Cast | Actress | Mrs. Mary Haslett |
 Henry O'Neill | Cast | Actor | Dr. Thomas Haslett |
Henry Otho | Cast | Actor | Gene - Rescue Worker (uncredited) |
 Herbert Heywood | Cast | Actor | Steve |
 Jean Muir | Cast | Actress | Ellen Haslett |
 John J. Richardson | Cast | Actor | Jack - Pete's Co-Worker (uncredited) |
 Joseph Crehan | Cast | Actor | Dr. Stuart Hunter |
 Myrtle Stedman | Cast | Actress | Nurse (uncredited) |
Neal Dodd | Cast | Actor | Priest (uncredited) |
 Paul Panzer | Cast | Actor | Pierre - Man Carrying Injured Suzy (uncredited) |
Priscilla Lyon | Cast | Suzanne Haslett | |
 Robert Barrat | Cast | Actor | Martin Crane |
Russ Powell | Cast | Actor | Toby - the Bartender (uncredited) |
 Sam Hayes | Cast | Radio Announcer (uncredited) | |
Tom Browner | Cast | Newspaper Reader (uncredited) | |
 Walter Miller | Cast | Actor | Maxwell |
| Person | Type | Job | Role(s) |
