| Actor | Character | Firearm | Notes |
|---|---|---|---|
| Basil Rathbone | Sherlock Holmes | Webley Bulldog | - |
| Basil Rathbone | Sherlock Holmes | Iver Johnson Bulldog | - |
| Basil Rathbone | Sherlock Holmes | Colt New Service | - |
| Miles Mander | Giles Conover | Webley Bulldog | - |
| Miles Mander | Giles Conover | Iver Johnson Bulldog | - |
| Nigel Bruce | Dr. Watson | Compact top-break revolver | Likely S&W or Iver Johnson |