| Person | Type | Job | Role(s) |
|---|---|---|---|
 A. E. Freudeman | Crew | Art | Set Decoration |
Boris Morros | Crew | Sound | Music Director |
 Franz Bachelin | Crew | Art | Art Direction |
Gerard Carbonara | Crew | Sound | Original Music Composer |
Hans Dreier | Crew | Art | Art Direction |
Harry Scott | Crew | Directing | Assistant Director |
 Herman C. McNeile | Crew | Writing | Novel |
Hugo Grenzbach | Crew | Sound | Sound Recordist |
 James P. Hogan | Crew | Directing | Director |
Stuart Gilmore | Crew | Editing | Editor |
Stuart Palmer | Crew | Writing | Screenplay |
Stuart Walker | Crew | Production | Producer |
 Ted Tetzlaff | Crew | Camera | Director of Photography |
William LeBaron | Crew | Production | Executive Producer |
Richard Olson | Crew | Sound | Sound Recordist |
 Billy Bevan | Cast | Actor | Aquarium Guard |
 Claud Allister | Cast | Actor | Sir Basil Leghorne |
 Clyde Cook | Cast | Actor | Constable Sacker |
 David Clyde | Cast | Actor | Constable McThane |
 E. E. Clive | Cast | Actor | Tenny |
 Eugene Jackson | Cast | Actor | Hotel Page Boy |
Evan Thomas | Cast | Actor | Smith |
 Ferdinand Munier | Cast | Actor | Old Major Trumleigh |
 Forrester Harvey | Cast | Actor | Constable at Gannett House |
 Frank Baker | Cast | Actor | Cop |
 Frank Lackteen | Cast | Actor | Native Selling Rifle |
 George Regas | Cast | Actor | Soongh |
 George Zucco | Cast | Actor | Rolf Alferson |
 Gerald Rogers | Cast | Actor | Island Police Desk Sergeant |
 Grace Hayle | Cast | Actress | Tourist |
 H.B. Warner | Cast | Actor | Colonel Nielsen |
Harold Garrison | Cast | Native Boy with Message | |
 Heather Angel | Cast | Actress | Phyllis Clavering |
Hercules Mendez | Cast | Foreign Agent | |
 Jean Fenwick | Cast | Actress | Lady Beryl Ledyard |
 Jimmy Aubrey | Cast | Actor | Steward |
 John Davidson | Cast | Actor | Gumba, Bird Seller |
 John Howard | Cast | Actor | Captain Hugh C. Drummond |
John Rogers | Cast | Actor | Guggins, Scrawny Henchman |
 John Sutton | Cast | Actor | Inspector Tredennis |
Kathryn Bates | Cast | Tourist | |
 Leonard Mudie | Cast | Actor | Richard Gannett |
Neil Craig | Cast | Tourist | |
Neil Fitzgerald | Cast | Actor | Sir Malcolm McLeonard |
 Olaf Hytten | Cast | Actor | Island Police Arresting Sergeant |
 Reginald Denny | Cast | Actor | Algy Longworth |
 Ruth Rogers | Cast | Actress | Maid |
Sam Savitsky | Cast | Foreign Agent | |
 Steve Clemente | Cast | Actor | Native Buying Rifle |
 Zeffie Tilbury | Cast | Actress | Aunt Meg |
| Person | Type | Job | Role(s) |
