Special Guest Stars Clémence Poésy as Herself Guest Stars Emmett J. Scanlan as Marcus MacLeod Lucie Shorthouse as Alissa Sawalha George Kemp as Sam Selva Rasalingam as Mark Alice Barlow as Estate Agent (Chloe) Marcia Lecky as AA Group Leader Alex Skarbek as Antoine Teowa Vuong as Suki Dominic Cazenove as Harry Jones Henry Perryment as Tom