| Andre |
Baudelaire | Gervais's father. |
| Gervais |
Baudelaire | Antique shop owner. |
| Chantilly |
Calhoun | Cottage owner. |
| The |
Collector | Antagonist. |
| Louise |
Cook | Dow's sister. |
| Agent |
Crokin | FBI special agent. |
| Aria |
Dixon | Evan's police contact. |
| Paula |
Hathaway | Noelle's friend. |
| Lars |
Knauer | The man who reported the crime. |
| Cedro |
Leon | One of the kidnap victims. |
| Dow |
Maginn | The man Bennett filed as missing. |
| Talullah |
Marsh | Victim who filed a crime report. |
| Bennett |
Meyer | Noelle's father. |
| Callie |
Meyer | Friend of Noelle and Evan. |
| Megan |
Meyer | Noelle's mother. |
| Noelle |
Meyer | Protagonist. |
| Evan |
Sinclair | Noelle's co-captive. |
| Leonard |
Sinclair | Evan's father; killer of Noelle's mother. |
| Dedryck |
van Daele | Heir to Van Daele Diamonds. |
| Professor |
Vittuci | Psychologist and profiler. |
| Caspar |
| Fontane's enemy. |
| Dodgers |
| One of the former victims. |
| Gemini |
| Noelle's star sign. |
| Grimaldo |
| Grim's co-victim. |
| Hanh |
| One of the kidnap victims. |
| Midori |
| One of the former victims. |
| Stan |
| Bartender. |