| Derek | Abbott | The suspected child pornographer. |
| Dawn | Adams | Akira's friend. A publisher. |
| Akira | Anno | A writer of literary fiction. |
| Alain | Badiou | A French Philosopher. |
| Mark | Belladonna | Dawn's writer. |
| Marcus | Brandt | An English cinematographer. Akira's ex-husband. |
| Cassian | Brannigan | Kenneth's son. |
| Kenneth | Brannigan | Hawthorne's neighbor. |
| Stephanie | Brook | An actress. Lockwood's first wife. |
| Mike | Carlyle | The man who approached Hawthorne. |
| Kevin | Chakraborty | Lisa's son. The boy in the wheelchair. |
| Lisa | Chakraborty | Kevin's mother. |
| Diana | Cowper | The Victim on Tony's previous case. |
| James | Daunt | Owner of Daunt Books. |
| Faraz | Delijani | Spencer's lover. |
| Hilda | Drake | Tony's literary agent. |
| Henry | Fairchild | Pryce's neighbor. |
| Dave | Gallivan | The duty controller. |
| Jill | Green | Tony's wife. |
| Cara | Grunshaw | A DI at Metropolitan Police. |
| Graham | Hain | Pryce's forensic accountant. |
| Daniel | Hawthorne | A detective. Tony's friend. |
| Anthony | Horowitz | Narrator and Protagonist. Aka: Tony. |
| Barbara | Jackson | Chris's wife. |
| Chris | Jackson | The farmer where Greg and Richard asked for help. |
| Michael | Kitchen | A TV script editor. |
| Rebecca | Lefevre | The bookstore manager. |
| Adrian | Lockwood | Pryce's client. Akira's husband. |
| Oliver | Masefield | Pryce's law firm partner. |
| James | McCoy | A detective constable in charge of Gregory Taylor's murder case. |
| DI | Meadows | The detective inspector at Diana Cowper's murder case. |
| Darren | Mills | A detective. Cara's partner. |
| Stuart | Orme | The director. |
| Mariella | Petrov | Pryce's cleaner. |
| Lenny | Pinkerman | Hawthorne's friend. Aka: Lofty. |
| Marge | Pinkerman | Lofty's wife. |
| Richard | Pryce | The victim. Aka: The Blunt Razor. |
| Charles | Richardson | Davina's dead husband. |
| Colin | Richardson | Charles and Davina's son. |
| Davina | Richardson | An interior decorator. Pryce's close friend. |
| Fiona | Shackleton | Pryce's companion. |
| Stephen | Spencer | Pryce's husband. |
| Sam | Stewart | Foyle's driver. |
| Gregory | Taylor | Pryce's friend. |
| June | Taylor | Susan and Greg's daughter. |
| Maisie | Taylor | Susan and Greg's daughter. |
| Susan | Taylor | Gregory's wife. |
| Maurice | Turnbull | Pryce's law frim partner. |
| Selina | Walker | Tony's new publisher. |
| Adam | | Sam's lover. |
| Bertha | | Davina's grandfather clock. |
| Christine | | Lisa's friend. |
| Foyle | | The protagonist of the movie called Foyle's War. |
| Honeysuckle | | An actress. |
| Rufus | | Henry's dog. |
| Salim | | A police constable. |
