| Matthew | Binghamton | Potential suitor of Felicity. |
| | Bumble | Marquess of Bumble. Father of Felicity and Arthur. |
| | Calhoun | American. Co-owner of the The Singing Sparrow. |
| Robert M. | Carrick | Duke of Marwick. aka Ewan. |
| Natasha | Corkwood | Younger sister of Jared. aka Tasha. |
| Arthur | Faircloth | Felicity's twin brother. aka Earl Grout. |
| Felicity | Faircloth | Protagonist. Daughter of the Marquess of Bumble. |
| Amanda | Fairfax | Lady. Member of the Ton. |
| Jared | Faulk | Lord. Member of the Ton. |
| Prudence | Featherstone | Arthur's wife. |
| Matthew | Hagin | Lord. Amanda's husband. |
| | Haven | Duke. |
| | Haven | Duchess. |
| Friedrich | Homrighausen | German. Another potential suitor of Felicity. |
| | Lilith | Lady. Acquaintance of Felicity. |
| | Northumberland | Duchess. Regularly host the most glamorous ball of the season. |
| Sesily | Talbot | Acquaintance of Felicity. |
| Annabelle | | Wife of the heir to the Marquessate of Wapping. |
| Annika | | Foreman of the Warehouse owned by Devil and Beast. aka Nik. |
| Beast | | Devil's brother. aka Whit. |
| Brixton | | Boy who works for Devil and Beast. |
| Catherine | | Marchioness of Bumble. Mother of Felicity and Arthur. |
| Clare | | Works for Grace. |
| Dahlia | | Sister of Devil and Beast. aka Grace and Gracie. |
| Devil | | Protagonist. aka Devon Culm. |
| Dinuka | | Works for Devil and Beast. |
| Hamish | | Niall's younger brother. Works for Devil and Beast. |
| Hester | | One of the women working in the streets of Covent Garden. |
| Irving | | Butler at Felicity's ancestral home. |
| John | | Head of security of the Warehouse owned by Devil and Beast. |
| Mary | | Works for Beast. |
| Nelson | | Works at 72 Shelton Street owned by Daliah. |
| Niall | | Wagon driver. Works for Devil and Beast. Scotsman. |
| Reggie | | One of the ruffians in Covent Garden. |
| Samir | | Wagon driver. Works for Devil and Beast. |
