Nancy Carroll Marine Bonnet Actor Roger Allam Antoine Verlaque Actor, Executive Producer Keala Settle Hélène Paulik Actor Patricia Hodge Actor Geff Francis Actor Kirsty Bushell Actor Samuel Barnett Actor Christophe Tek Actor Oliver Alvin-Wilson Actor Chloë Thomas Director Shelagh Stephenson Screenwriter, Executive Producer Debra Hayward Executive Producer Alison Owen Executive Producer Alison Carpenter Executive Producer