| George Blagden | Louis XIV |
| Alexander Vlahos | Philippe d'Orléans, aka 'Monsieur' |
| Tygh Runyan | Fabien Marchal |
| Stuart Bowman | Alexandre Bontemps |
| Elisa Lasowski | Queen Marie-Thérèse of Austria |
| Anna Brewster | Athénaïs de Montespan |
| Evan Williams | The Knight of Lorraine |
| Maddison Jaizani | Sophie de Clermont, Duchess of Cassel |
| Steve Cumyn | Jean-Baptiste Colbert |
| Joe Sheridan | François de Louvois |
| Pip Torrens | Cassel |
| Noémie Schmidt | Henriette d'Angleterre |
| Amira Casar | Béatrice de Lorraine, Madame de Clermont |
| Sarah Winter | Louise de La Vallière |
| Gilly Gilchrist | Jaques |
| Anatole Taubman | Montcourt |
| Alexis Michalik | Louis de Rohan |
| Lizzie Brocheré | Claudine, King's doctor |
| Jenny Platt | Jeanne |