| Richard | Acker | The doctor. Aka: Dickie. |
| Madeline | Aubert | The maid who brought a note to Sebastian. Evelyn's maid. |
| Sebastian | Bell | One of the guests in Hardcastle's party. |
| Aiden | Bishop | Protagonist. |
| Juliette | Bishop | Aiden's sister. A girl Anna killed. |
| Charlie | Carver | The man who killed Thomas. |
| Daniel | Coleridghe | Professional gambler, trapped in Blackheath. Aka: Samaritan. |
| Roger | Collins | The Hardcastle's butler. |
| Charles | Cunningham | Lord Ravencourt's valet. |
| Edward | Dance | The Hardcastle's solicitor. |
| Rebecca | Dance | Edward's wife. |
| Donald | Davies | One of the guests at Hardcastle's party. |
| Grace | Davies | Donald's sister. |
| Jonathan | Derby | Millicent's son. |
| Millicent | Derby | One of the guests at Hardcastle's party. |
| The Plague | Doctor | Mystery man who freed first person who solved Evelyn's death. |
| Mrs. | Druge | The cook of the Hardcastles. |
| The | Footman | Mystery man who kills all the people trapped in Blackheath. |
| Gregory | Gold | An artist. The man who assaulted Mr. Collins. |
| Heather | Hardcastle | Evelyn's grandmother. |
| Helena | Hardcastle | Evelyn's mother. Aka: Lady Hardcastle. |
| Michael | Hardcastle | Evelyn's brother. Sebastian's friend. |
| Peter | Hardcastle | Evelyn's father. Aka: Lord Hardcastle. |
| Thomas | Hardcastle | Michael's brother. |
| Lucy | Harper | The first maid of the Hardcastles. |
| Clifford | Herrington | A retired Naval officer. |
| Felicity | Maddox | The girl Evelyn asks for help. Evelyn's old friend. |
| Alf | Miller | The stable master. |
| Keith | Parker | The stable boy. |
| Christopher | Pettigrew | The Hardcastle's solicitor. |
| Henry | Rashton | Jim's father. |
| Jim | Rashton | Donald's friend. A Police Constable. |
| Margaret | Rashton | Jim's mother. |
| Cecil | Ravencourt | Evelyn's fiancé. A Banker. Aka: Lord Ravencourt. |
| Ted | Stanwin | The groundskeeper of the Hardcastles. |
| Philip | Sutcliffe | The Hardcastle's solicitor. |
| Silver | Tear | Person trapped in Blackheath. Coleridge's ally. Aka: Josephine. |
| Anna | | Girl who was trapped in Blackheath. Aka: Anna Belle Caulker. |
| Audrey | | A woman who was in the carriage with Donald Davies. |
| Beth | | One of the Hardcastle's maids. |
| Henrietta | | One of the Hardcastle's maids. |
