| Pro | Gertrude | Gunn | Cloe's cousin. aka: Guinne. |
| | Arthur Ernest | Guinness | An engineer and senior member of the Guinness family. |
| | Fantome | | Ernest's ship. |
| | Cloe | | Ernest's wife. |
| | Maureen | | One of Ernest and Cloe's daughters. |
| | Aileen | | One of Ernest and Cloe's daughters. |
| | Oonagh | | One of Ernest and Cloe's daughters. |
| | Felicity | | The narrator and the protagonist of the piece. aka: Fliss. |
| | Monsieur | Antoine | A hairdresser. |
| | Hughie | | Fliss' brother. |
| | | | Part One |
| 1 | | | Glenmaroon, Dublin, 1978 |
| | Mildred | | Ernest's cousin. |
| | Lois | Sturt | An English socialite. |
| | Teresa | Jungman | One of London's society. aka: Baby. |
| | Zita | | Baby's sister. |
| | Elizabeth | Ponsonby | A socialite. |
| 2 | | | Ballytibbert House, Wexford, 1918 |
| | John | Hegarty | An advertising executive. |
| | Mary | | A servant. |
| | Alex | | Fliss and Hughie's uncle. |
| | Agatha | | Fliss and Hughie's aunt. |
| 3 | | | Glenmaroon, Dublin, 1918 |
| | Lapham | | A butler. |
| | Peke | | A dog. |
| | Mrs. | Burke | Felicity's mother. |
| | Admiral | Redmond | Felicity's father. |
| | Rupert | | Ernest's older brother. |
| | Walter | | One of Ernest's brothers. |
| | Bryan | | Walter's son. |
| | Mary Mercy | | Oonagh's doll. |
| | Robert | | A junior footman. |
| 4 | | | Glenmaroon, Dublin, 1978 |
| | Kathleen | | A housemaid. |
| | Thomas | | A stable hand. |
| 5 | | | Glenmaroon, Dublin, 1918 |
| | Mrs. | Spain | The governess. |
| | Captain | | A pony. |
| | | Whitaker | One of the nannies. |
| | | Hawkins | One of the nannies. |
| | Sean | Groom | A freelance writer. |
| 6 | Olive | | Guinness's girls great-aunt. |
| | Honour | | One of Rupert's daughter. |
| | Cecil | | Mildred's father. |
| | Dodo | | Cecil's sister. |
| 8 | | | Glenmaroon, Dublin, 1920 |
| | Richard | Butler | Hughie's friend. |
| | Brigid | | Honour's sister. |
| | Henry | Guinness | Ernest's cousin. |
| | Moira | Guinness | One of Henry's daughters. |
| | Rachel | | One of Henry's daughters. |
| | Patricia | | One of Henry's daughters. |
| | Heather | | One of Henry's daughters. aka: Judy. |
| | Lady Louisa | FitzGibbon | The daughter of Richard Hobart FitzGibbon. |
| | Richard | FitzGibbon | A veteran of the United States Navy. |
| 10 | King | Midas | The King with the power to turn whatever he touches to gold. |
| 11 | | | Glenmaroon, Dublin, 1978 |
| | Trisha | | Thomas' granddaughter. |
| 12 | Moran | | Hughie's acquaintance. |
| | Lord | Iveagh | The Guinness' girls grandfather. |
| | Mabel | | One of Mildred's half-sisters. |
| | Katy | | One of Mildred's half-sisters. |
| 13 | Ida | | Maureen's friend. |
| | Michael | Mahon | Thomas' father. |
| | Sean | Dolan | Thomas' acquaintance. |
| 16 | | | Glenmoore, Dublin, 1978 |
| | Violet Valerie | French | Oonagh's friend. aka: Valsie. |
| | Brinsley | Plunket | Aileen Guinness' husband. aka: Brinny. |
| 17 | Gordon | Macready | British Army general. |
| | Éamon | de Valera | Served as head of government and head of state of Ireland. |
| | Frederick | | Oonagh's acquaintance. |
| 19 | Molly | | Aileen's acquaintance. |
| 20 | | | Glenmoore, Dublin, 1922 |
| | Chestnut | | Hughie's horse. |
| | | | |
| 22 | | | Grosvenor Place, London, 1924 |
| | Winston | Churchill | Former British Prime Minister. |
| 23 | | | Grosvenor Place, London, 1925 |
| | Gwyneth | | Lord Tredegar's daughter. |
| | Marjorie | | Maureen's acquaintance. |
| | Queen Charlotte | | Queen consort of Great Britain and Ireland. |
| | Katharine | Howard | The daughter of Lord Edmund Howard. |
| | Fidget | | A chow puppy. |
| 24 | Charles II | | King of Scotland, England and Ireland. |
| | Diana | Cooper | An English aristocrat who was a well-known social figure in London. |
| | Lady Alexandra | Curzon | The daughter of George Nathaniel Curzon. |
| | Mrs. | Daniels | The housekeeper. |
| 25 | Lady | Colefax | A notable English interior decorator and socialite. |
| | Brian | Howard | An English poet and writer. |
| | Beatrice | | Baby and Zita's mother. |
| 27 | Pablo | Picasso | A Spanish painter, sculptor, printmaker, ceramicist. |
| | Bert | | Baby's friend. |
| | Nancy | Mitford | The eldest of the Mitford'd sisters. |
| | Guy | Fawkes | English member of the Gunpowder Plot. |
| | Brenda Dean | Paul | A British silent film actress, socialite. |
| | Evelyn | | Brenda's acquaintance. |
| | Mr. | Andersen | An author. |
| | Dr. | Gordon | Cloe's physician. |
| 29 | | | Grosvenor Place, London. 1926 |
| | Driberg | | A reporter. |
| | Stephen | Tennant | A British aristocrat. |
| | Bim | | Stephen's brother. |
| | Pamela | | Stephen's mother. |
| | Dorothea | | Elizabeth's mother. aka: Dolly. |
| | Cecil | Beaton | A British photographer, designer, socialite, writer. |
| 30 | Duke | Elington | An American composer, pianist, and leader of a jazz orchestra. |
| 31 | David | | Bryan's acquaintance. |
| | Ray | Starita | British dance band leader and reed player. |
| | Diana | Mitford | Nancy's sister. |
| 32 | Arthur | Ponsolby | Elizabeth's father. |
| | Madame | Vorolsky | A flirtatious White Russian émigré. |
| | Mrs. | Asquith | Beatrice's acquaintance. |
| 34 | Helen | | A member of Brinny's family. |
| | Moira | | A member of Brinny's family. |
| | Joyce | | Brinny's sister. |
| | Rosa | Lewis | The hotel flamboyant proprietor. |
| | Essex | | Valerie's sister. |
| | Henry Bradley | Martin | Valerie's
fiancé. |
| 35 | Oojah | | An elephant. |
| | Snooker | | A black cat. |
| | Sir Francis | Laking | English physician who was Surgeon-Apothecary to Queen Victoria. |
| 36 | | | Grosvenor Place, London, 1927 |
| | Mr. | Pearson | The managing director in a publishing company. |
| | Jennifer | | Fliss' first female friend. aka: Jen. |
| | Mr. | White | The editor in a publishing company. |
| | Peter | | Jen's brother. |
| | Susan | | Jen's younger sister. |
| | Lord | Bath | The 7th Marquess of Bath. |
| | Viscount | Weymouth | The 8th Marquess of Bath. |
| 37 | George | | Susan's fiancé. |
| 38 | Burton | | An efficient lady's maid. |
| 40 | Doug | | One of the guests at Elizabeth's party. |
| | Philip | Kindersley | Oonagh's husband. |
| 41 | Mr. | Craigre | Elizabeth's
fiancé. |
| | Denis | Pelly | Assistant in a gramophone shop. |
| 42 | Grania | | Bryan's sister. |
| | Farve | | Nancy's acquaintance. |
| | Evelyn | | Walter's wife. |
| | Basil | Blackwood | Maureen's husband. aka: Duff. |
| 43 | Evelyn | Waugh | A writer. |
| 44 | Robert | Kindersley | Philip's father. |
| 46 | | | Grosvenor Place, London, 1930 |
| | Neelia | | Aileen's daughter. |
| | Gay | | Oonagh's son. |
| | Lord Frederick | | Duff's father. |
| | Lady | Brenda | Duff's mother. |
| | Arthur | | Zita's husband. |
| | Miss | Gibbs | Uncle Walter's gibbon. |
