| Timothy |
Bachelor | Lianne's killer. |
| Carlos |
Badanucci | Saffy's employer. |
| Saul |
Bernstein | Owner of the penthouse apartment. |
| Cate |
Blanchett | Actress. |
| Amanda |
Brett | Chad's wife. Aka: Mandy. |
| Chad |
Brett | Saffy's new neighbor. |
| Jonathan |
Desrosiers | Saffy's crush and a podcaster. Aka: Jon. |
| Amy |
Elizabeth Desrosiers | Jon's wife. |
| Fatima |
Fanducci | Frank's wife. |
| Francesco |
Fanducci | The sixth victim. Aka: Frank. |
| Rupert |
Huntington-Hogg | Honourable Member for Swinley. |
| Seraphina |
Huntley-Oliver | Narrator and protagonist. Aka: Saffy. |
| Cohen |
Khan | Police constable under Atherton. |
| Mrs. |
Liebmann | Owner of the front ground-floor apartment. |
| Harold |
Lyon | Saffy and Susie's abusive stepfather. |
| Deven |
Michaels | The man who found Lianne's body. |
| Gabbie |
Mordant | Kidnapped victim. |
| Dorothy |
Murray | Lianne's mother. |
| Lianne |
Murray | Timothy's victim; murdered. |
| Dennis |
Nilsen | Murderer. |
| Neve |
Owens | Softball star pitcher. |
| Dolly |
Parton | American singer and cultural icon. |
| Efrain |
Santander | Wrongfully accused of killing Lianne. |
| Mr. |
Scheeler | Softball team coach; pedophile. |
| Harold |
Shipman | British serial killer. |
| Simon |
Simons | Jon's superfan. |
| Finlay |
Smythe | Susie's boyfriend. |
| Peter |
Sutcliffe | Serial killer. Aka: The Yorkshire Ripper. |
| Cyril |
Walker | A builder and serial killer. Aka: The Bin Bag Killer. |
| Phil |
Walker | Cyril's brother. |
| Paige |
Wheeler | Saffy's classmate. |
| Atherton |
| Detective Inspector. |
| Bridie |
| Jon's neighbor. |
| Christian |
| Bouncer at Frank's club. |
| Colin |
| Man from Whittington Hospital. |
| Digger |
| A rescue dog. |
| Edie |
| Jon's agent. |
| Gaye |
| Saffy's next-door neighbor. |
| Gustav |
| Saffy's stylist. |
| Harrison |
| Detective Chief Inspector; Jonathan's friend. |
| Hugo |
| A rescue dog. |
| Jess |
| A rescue dog. |
| Louise |
| Jon's editor. |
| Marc |
| Amy's new boyfriend. |
| Marj |
| Edie's wife and assistant. |
| Meg |
| One of Harold's servants. |
| Monica |
| Amy's mother. |
| Ridwan |
| Saffy's ex-boyfriend. |
| Susan |
| Saffy's sister. Aka: Susie. |
| Tom |
| Saffy's ex-boyfriend. |
| Trina |
| Bartender at Majicks. |
