| Person | Type | Job | Role(s) |
|---|---|---|---|
 Arthur Conan Doyle | Crew | Writing | Novel |
 Darryl F. Zanuck | Crew | Production | Executive Producer |
 Ernest Pascal | Crew | Writing | Screenplay |
 Gene Markey | Crew | Production | Associate Producer |
Gwen Wakeling | Crew | Costume & Make-Up | Costume Design |
Hans Peters | Crew | Art | Art Direction |
J. Peverell Marley | Crew | Camera | Director of Photography |
Richard Day | Crew | Art | Art Direction |
Robert L. Simpson | Crew | Editing | Editor |
 Sidney Lanfield | Crew | Directing | Director |
Thomas Little | Crew | Art | Set Decoration |
 Barlowe Borland | Cast | Actor | Frankland |
 Basil Rathbone | Cast | Actor | Sherlock Holmes |
 Beryl Mercer | Cast | Actress | Mrs. Jennifer Mortimer |
Brandon Beach | Cast | Actor | Ship Passenger (uncredited) |
David Thursby | Cast | Actor | Open Carriage Driver (uncredited) |
 E. E. Clive | Cast | Actor | London Cabbie John Clayton |
 Eily Malyon | Cast | Actress | Mrs. Barryman |
 Frank McLure | Cast | Actor | Ship Passenger (uncredited) |
Ian Maclaren | Cast | Actor | Sir Charles Baskerville |
Jack Egger | Cast | (uncredited) | |
James Carlisle | Cast | Actor | Ship Passenger (uncredited) |
 John Carradine | Cast | Actor | Barryman |
John Graham Spacey | Cast | Actor | Ship's Porter (uncredited) |
Kenneth Hunter | Cast | Actor | Ship's Officer (uncredited) |
 Leonard Carey | Cast | Actor | Hugo's Servant (uncredited) |
 Lionel Atwill | Cast | Actor | Dr. James Mortimer |
Lionel Pape | Cast | Actor | The Coroner |
 Mary Gordon | Cast | Actress | Mrs. Hudson |
 Mary Young | Cast | Actress | Betsy Ann's Mother (uncredited) |
 Morton Lowry | Cast | Actor | John 'Jack' Stapleton |
 Nigel Bruce | Cast | Actor | Doctor John H. Watson |
 Nigel De Brulier | Cast | Actor | The Notting Hill Murderer |
 Peter Willes | Cast | Actor | Roderick |
 Ralph Forbes | Cast | Actor | Sir Hugo Baskerville |
 Richard Greene | Cast | Actor | Sir Henry Baskerville |
 Rita Page | Cast | Actress | Chambermaid (uncredited) |
 Ruth Terry | Cast | Actress | Betsy Ann |
Vesey O'Davoren | Cast | Ship's Steward (uncredited) | |
 Wendy Barrie | Cast | Actress | Beryl Stapleton |
 Herschel Graham | Cast | Actor | Ship Passenger (uncredited) |
| Person | Type | Job | Role(s) |
