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