| Mary Elizabeth | Allen | Butcher George's first victim. |
| Elizabeth Garret | Anderson | She was the first woman to qualify in Britain as a physician and surgeon. |
| John | Andrews | Lydia's husband. Aka: Johnnie. |
| Lydia | Andrews | Colonel Harper's daughter. |
| Elizabeth | Arden | Founder of Elizabeth Arden, Inc. |
| Joan | Barnard | One of Phryne's aliases. |
| Mr | Berry | One of the politicians at the Melba Gala. |
| Cokey | Billings | One of the King of Snow's men. |
| Madame | Breda | German woman who runs a Turkish bath house and health palace. |
| Melanie | Cryer | One of the aristocrats. |
| May | Cunliffe | 1924 Cairo road race champion. |
| Elli | de Lisse | Twin sister of Sasha and his dancing partner. |
| Princesse | de Lisse | Elli and Sasha's grandmother. |
| Sasha | de Lisse | Russian dancer who has a grudge against drug dealers. |
| | Ellis | Senior-Constable. |
| Phryne | Fisher | Wealthy aristocrat and private detective. |
| George | Fletcher | Abortionist and rapist. Aka: Butcher George. |
| Alice | Greenham | Latest victim of Butcher George. |
| Colonel | Harper | Retired Indian Colonel. |
| Mrs. | Harper | Colonel Harper's wife. |
| Mr | Jackson | One of the politicians at the Melba Gala. |
| Mother | James | Cafeteria owner. |
| Albert | Johnson | One of the cab drivers. Aka: Bert. |
| | Jones | Police-Constable. |
| Elizabeth | MacMillan | Doctor at the Queen Victoria Hospital for Women. |
| | Malleson | Detective-Constable. |
| Lillian | Marchent | Prostitute. One of George's victims. Aka: Gay Lil. |
| Robert | Matthews | Amateur cricketer. Aka: Bobby. |
| Nellie | Melba | Australian operatic soprano. |
| Muriel | Miller | Dorothy's friend. |
| Wilfred | Owen | English poet and soldier. |
| Jack | Robinson | Detective-Inspector. |
| Mrs | Sanderson | Robert Sanderson's wife. |
| Robert | Sanderson | Politician. Member of the Parliament. |
| Georges | Santin | Phryne's old friend. |
| Sister | Simmonds | One of the nuns at Queen Victoria Hospital. |
| Mr | Smythe | Hotel manager. |
| Madame | St Clair | Ambassador's wife. |
| Dr Marie | Stopes | Author, palaeobotanist and campaigner for eugenics and women's rights. |
| Janey | Theodore | One of Phryne's aliases. |
| Mr | Turner | One of the politicians at the Melba Gala. |
| Dorothy | Williams | Phryne's confidential maid and social secretary Aka: Dot. |
| Cecil | Yates | One of the cab drivers. Aka: Cec. |
| Ariadne | | One of Lydia's friends. |
| Beatrice | | One of Lydia's friends. |
| Brigit | | Maureen's sister. |
| Bull | | One of the King of Snow's men. |
| Gerda | | Madame Breda's maid. |
| Henry | | Beatrice's husband. |
| James | | One of the King of Snow's men. Aka: Gentleman Jim. |
| Maureen | | Lydia's Irish maid. |
| Michael | | Irish mechanic. |
| Ted | | Doorman at the Windsor. |
