| MrStapleton | | The man who died instead of Sir Henry. |
| Watson | | The name of the convict. |
| grimpenmire | | The relationship of the convict to Mrs Barrymore |
| Selden | | The evil, kidnapping grandfather of Sir Henry. |
| Lestrade | | The narrator. |
| brother | | Sir Henry had two of these stolen from his hotel. |
| falkland | | The area of quicksand where Stapleton dies. |
| theconvict | | This is the job of Mr Barrymore. |
| DrMortimer | | This person was accidentally responsible for the death of Sir Charles. |
| boot | | The nearest village to Baskerville Hall. |
| Butler | | The name of the man who trained a big dog to attack the Baskervilles. |
| sirhugo | | The true identity of the woman Sir Henry fancies. |
| lauralyons | | One of Stapleton's aliases. |
| candle | | Where Holmes stayed while Watson was at Baskerville Hall. |
| Vandeleur | | What Barrymore used to signal Selden from the window on page 22. |
| MrsStapleton | | Another policeman. |
| sherlockholmes | | The great detective himself. |
| hut | | Sir Henry's neighbour. |
| Coombetracey | | This person asked Holmes and Watson to help him solve the mystery of the hound. |
