| Alfred | Ainsleigh | George Hemmingses third cousin. |
| Peter | Babcock | Hemmingses' attorney. |
| Jonathan | Baker | Markhams' stable boy. |
| Winston | Churchill | Former Prime Minister of the United Kingdom. |
| Carl | Fabergé | Russian jeweler. |
| Mrs. | Finch | Markhams' housekeeper. |
| Malcolm | Harding | Queen's personal secretary. |
| Anthony | Hatton | Lord Hatton's son. Aka: Tony. |
| Lord | Hatton | The royal racing manager. |
| George | Hemmings | Earl of Ainsleigh. |
| Glorianna | Hemmings | Countess of Ainsleigh. |
| Henry | Hemmings | George and Glorianna's son. |
| Adolf | Hitler | The leader of the Nazi Party. |
| Mr. | MacPherson | Owner of a horse farm in Virginia. |
| Annabelle | Markham | John Markham's wife. |
| John | Markham | Owner of Markham estate. |
| | Thompson | Queen's jockey. |
| Lucy | Walsh | Orphan girl from London. |
| Charlotte | White | Princess Charlotte's alias. Aka: Charlotte Elizabeth White. |
| Charles | Williams | King Frederick's private secretary. |
| Alexandra | Windsor | King Frederick's eldest daughter. |
| Anne Louise | Windsor | Princess Charlotte's daughter. Aka: Annie. |
| Charlotte | Windsor | King Frederick's youngest daughter. Aka: Charlotte Elizabeth Windsor. |
| Victoria | Windsor | King Frederick's daughter. |
| Albert | | Queen Victoria's husband. |
| Albert | | Alexandra's son. |
| Anne Regina | | Queen of England. |
| Aswan | | MacPherson's horse. |
| Blake | | One of the twins. |
| Boyd-Rochfort | | Horse trainer. |
| Edward | | Alexandra's husband. |
| Felicity | | Princess Charlotte's governess. |
| Flash | | A stallion. |
| Frederick | | King of England. |
| George | | Alexandra's eldest son. |
| Ginger Boy | | The horse Annie used in Kentucky. |
| Penny | | Jonathan's girlfriend. |
| Pharaoh | | Princess Charlotte's horse. |
| Queen Victoria | | Charlotte's great-great-grandmother. |
| Rupert | | One of the twins. |
| Starlight | | Alexandra's horse. |
| William | | Alexandra's youngest son. |
| Winston | | Henry's horse. |
