Guest Stars Rachael Stirling as Rebekah Chaban Kevin Eldon as Roy Colin Emma Cunniffe as Cassie Lyall Jonny Phillips as Gulliver Bauer Tomiwa Edun as Greg Milton-Elwes Sheyi Ryane as Benoit's Solicitor Jack Ashton as Toby Hansard Félicien Juttner as Benoit Chaban Ella Gilling as Kitty Collin Samuel Holmes as Chris Milton-Elwes