Guest Stars Fiona Dolman as Sarah Barnaby Annette Badland as Dr. Fleur Perkins Isabel Shaw as Betty Barnaby Jaye Griffiths as Lilly Wilder Kazia Pelka as Tanya Brzezinski Natalie Gumede as Rachel Stevenson Carolina Main as Heather Wilder Tom Chambers as Ray Wilder Nigel Havers as Andrew Wilder Christopher Timothy as Ned Barnaby Danny Mac as Anton Walsh Jack Hawkins as Jake Hannity Cassidy Little as Duncan Corrigan Faye Tozer as Roas Corrigan Luke Pierre as Warren Cunningham