| Eustace | Aaron | A detective. |
| Vanessa | Allen | Gordon Foyle's acquaintance. |
| Griff | Banks | Helen Garrick's new acquaintance. |
| Mr. | Bell | A photographer. |
| Lionel | Benedict | A detective. |
| Richard | Branch | A socialist. |
| Winston | Brown | An assistant to the police. |
| | Bulmer | A detective sergeant. |
| Andrew | Carter | Helen Garrick's new acquaintance. |
| Vanessa | Carter | Andrew Carter's sister. |
| Alice | Cavendish | Maggie's sister. |
| Mr. | Cavendish | Alice's father. |
| Mrs. | Cavendish | Alice's mother. |
| Michael Percy | Christopher | A theatrical agent. |
| Lesley | Clements | Alice's friend. |
| | Cooper | A policeman. |
| Wendy | Copeland | Helen Garrick's new acquaintance. |
| Ben | Crake | Violet's husband. |
| Professor | Daniels | Grant's colleague. |
| | Davis | A police constable. |
| Dorothea | Dickson | Lily's grand-aunt. aka: Dot. |
| Mrs. | Epstein | Gordon's acquaintance. |
| Gordon | Foyle | Jennifer's admirer. |
| Francis | Gardner | Grant's friend. |
| Helen | Garrick | A teacher. |
| Inspector | Goode | Lionel's partner. |
| Julia | Hart | An editor of a small publishing house. |
| Mrs. | Hashemi | Detective Moon's landlady. |
| Godwin | Lamb | A doctor. |
| Daisy | Lancaster | Symons' wife. |
| Erick | Laurent | Lionel's new partner. |
| | Laurice | A detective inspector. |
| Victor | Leonidas | Julia Hart's employer. |
| Mr. | Lou | The restaurant manager. |
| Grant | McAllister | A professor in mathematics. |
| John | Milton | An English poet. |
| Lionel | Moon | A detective. |
| Agnes | Mortimer | Lily's grandmother. |
| Dr. | Mortimer | Cavendish's family doctor. |
| Lily | Mortimer | Dr. Lamb's patient. |
| Andrew | Packer | A lawyer. |
| Richard | Parker | Alice's acquaintance. |
| Mr. | Pine | Lionel's neighbor. |
| Dr. | Purvis | Laurent's friend. |
| Annabel | Richards | A teacher. |
| William | Shakespeare | An English playwright, poet, and actor. |
| Mr. | Stubbs | Mrs. Stubbs' husband. |
| Mrs. | Stubbs | Sarah's new acquaintance. |
| Andrew | Sullivan | Alice's childhood friend. |
| Mrs. | Sullivan | Andrew Sullivan's mother. |
| Scarlett | Thorpe | A slattern, accused of seducing a man persuading him to suicide. |
| Thomas | Townsend | An alcoholic who was accused of murdering his wife. |
| Harry | Trainer | A playwright. |
| Mrs. | Tranter | An old lady who was also attending on the occasion. |
| Elizabeth | White | An actor and playwright. |
| Inspector | Wild | Winston Brown's friend. |
| Alfred | | Dr. Lamb's companion. |
| Bunny | | Megan and Henry's friend. |
| Charles | | A retired army. |
| Christopher | | Rose and Maggie's new acquaintance. |
| Elise | | A maid. |
| Hanna | | The housecleaner. |
| Henrietta | | Charles' daughter. |
| Henry | | Megan's ex-boyfriend. |
| Jacob | | A dog. |
| James | | Griff's acquaintance. |
| Jennifer | | Vanessa's daughter. |
| Keller | | A Hungarian counterfeiter. |
| Lauren | | Mathew's wife. |
| Leonidas | | One of Julia Hart's cats. |
| Maggie | | Rose's friend. |
| Matthew | | Lily's uncle. |
| Megan | | An actor. |
| Raymond | | The gardener. |
| Rhonda | | Harry's latest flame. |
| Rose | | A girl who is always full of energy. |
| Sarah | | Charles' second wife. |
| Scarlett | | Griff Banks' partner. |
| Sofia | | Mrs. Tranter's companion. |
| Symons | | The boat owner. |
| Unwin | | Mr. and Mrs. Stubbs' new acquaintance. |
| Victor | | One of Julia Hart's cats. |
| Violet | | Lily's sister. |
| William | | Lily's cousin. |
