Guest Stars Fiona Dolman as Sarah Barnaby Annette Badland as Dr. Fleur Perkins Isabel Shaw as Betty Barnaby Bronagh Waugh as Blaise McQuinn Aneurin Barnard as Freddie Lamb Nicola Stephenson as Izzy Silvermane Nitin Ganatra as Ned Skye Eleanor Fanyinka as Jade-Marie Pierce Miles Jupp as Cornelius Tetbury Vincent Franklin as Artie Blythe Chelsea Mather as Chelsea Krupa Pattani as Simone Skye Andrew Brooke as Lex Bedford Paul Hunter as Gert Michaels John Stahl as Damian Lint Morgan Watkins as Griffin Twigg Lloyd Everitt as Harper Kaplan
