Guest Stars Ruby Bentall as Angelica Ludivine Sagnier as Diane de Poitiers Antonia Clarke as Mary, Queen of Scots Alex Heath as Henri Paul Chahidi as Charles de Bourbon Colm Meaney as King Francis Liv Hill as Young Catherine Naomi Battrick as Anne d'Etampes Navid Negahban as Duke of Guise Louis Landau as Dauphin Francois Co Starring Steve Furst as Dr. Fernel Rebecca Gethings as Queen Eleanor Gemma Dobson as Nathalie Loïc Azorin as Footman 2 Adam Garcia as Sebastio Nathan Parent as Young Louis of Bourbon Adam Amara as Young Francois de Guise Simon Parmentier as Young Antoine of Bourbon Louis Pencréac'h as Young Charles de Guise Pierre Cévaër as Footman 1 Anna Cottis as Cook Laura Puech as Diane's Servant James Joint as Emissary Elissa Alloula as Filippa Louis Deslis as Handsome Doctor Anne Le Forestier as Dressmaker
