| 1 | Eustace |
| Butler in the mansion |
| | Mr. |
Crane | Owner of the mansion |
| | Arabella |
| Opera singer in the car |
| 2 | Clara |
| , a Young girl lives in a mansion |
| | Alice |
| Housekeeper/Cook in the mansion |
| 3 | David |
Landor | Murdered man in the car at the mansion |
| 5 | John |
Crouch | One of the brothers called for work |
| | Abel |
Crouch | One of the brothers called for work |
| 7 | Elias |
Cromer | Man in railway viaduct |
| | Chastern |
| Powerful old man, in the limo |
| 9 | Earl of Orrery |
| Commissioned Orrery instrument |
| | John |
Rowley | Instrument maker |
| 11 |
Nazaire | |
Chastern's attendant |
| 13 |
Eleanor | |
Sister of the ship owner's son, died |
| | Alderman Charles |
Swain | Uncle of two girls in the boat |
| | Lucy |
| Charles' niece |
| | Eliza |
| Charles' niece |
| | Miss |
Avery | Governess of Lucy and Eliza |
| | Amelia |
| Child died |
| 17 |
Jonah | |
Boy with invoices |
| | Mrs. |
Haim | Eustace's landlady |
| | Mrs. |
Fraser | Visitor to Mr. Crowe's, Madame |
| | Mr. |
Gill | Client of Mrs. Fraser, alderman's son |
| | Rosie |
Ennis | Presides over Grey Swan |
| | Viking |
Boone | Ran the operation of Grey Swan |
| | Bill |
| Questioned Eustace about his background |
| | Julie |
| Friend of Eustace, prostitute |
| 21 |
Lily | |
John and Abel's sister |
| | Michelle |
| Works for Mrs. Fraser |
| 23 |
Lavoisier | |
Boat man |
| | Jane |
Avril | Entertainer |
| | Debussy |
| Musician, sick |