| Derek | Abbott | A retired teacher. |
| Fiona | Brown | Damian's agent. |
| Dr. | Butterworth | Diana's doctor. Aka: Buttimore. |
| Raymond | Clunes | A theatrical producer. |
| Lawrence | Coper | Diana's husband. |
| Andrew | Cornwallis | Barbara and Robert's son. |
| Barbara | Cornwallis | Robert's wife. |
| David | Cornwallis | Robert's uncle. |
| Robert | Cornwallis | The funeral director. |
| Sebastian | Cornwallis | Barbara and Robert's son. |
| Toby | Cornwallis | Barbara and Robert's son. |
| Damian | Cowper | The actor. Diana's son. |
| Diana Jane | Cowper | The mother of an actor. Victim. |
| Charlie | Creed-Miles | The actor who played Tony's detective series. |
| Alan | Godwin | The Godwins's father. |
| Jeremy | Godwin | Timothy's twin. |
| Judith | Godwin | The Godwins's mother. |
| Timothy | Godwin | Jeremy's twin. The boy that Diana accidentally killed. |
| Mr. | Grossman | The lawyer. |
| Gail | Harcourt | Owner of the ice cream shop. |
| Daniel | Hawthorne | Tony's friend. An ex-detective. |
| Charles | Hawtrey | An actor. |
| Anthony | Horrowitz | Narrator and Protagonist. Aka: Tony. |
| Peter | Jackson | The director. |
| Charles | Kenwortht | Damian's lawyer. |
| Andrea | Kluvanek | The Slovakian cleaner at Diana's place. |
| Nigel | Kneale | Tony's favorite screenwriter. |
| Alfred | Laws | The funeral director. |
| Irene | Laws | Robert's personal assistant and cousin. |
| Vivien | Leigh | The actress that Damian fancied. Aka: Amanda. |
| Grace | Lovell | Damian's girlfriend. |
| Martin | Lovell | Grace's father. |
| Rosemary | Lovell | Martin's wife. Grace's mother. |
| Ian | McKellen | An OSCAR-nominated actor. |
| Charlie | Meadows | The detective inspector on Diana's murder case. |
| Mary | O'Brien | The Godwins's nanny. |
| Lindsay | Posner | Damian's director. |
| Miss | Presley | Mr. Traverston's employee. |
| Mrs. | Rendell | The Royal Hotel manager. |
| Dan | Roberts | Damian's co-actor. |
| Steven | Spielberg | Tony's producer. |
| Hilda | Starke | Tony's literary agent. |
| Mr. | Tibbs | Diana's cat. |
| William | Travers | A barrister. Aka: Purefoy. |
| Graham | Traverston | Gail's next door neighbor. A pharmacy store owner. |
| Bruno | Wang | A major theatrical producer. |
| Nigel | Weston | A court judge. |
| Ashleigh | | Grace and Damian's daughter. |
| Brian | | Tony's informant. |
| Jason | | Damian's manager. |
| Liz | | An associate director. |
