Guest Stars Fiona Dolman as Sarah Barnaby Steve Pemberton as Timothy Benson Amit Shah as Shray Varma Aisling Loftus as Tegan Langton Susan Hampshire as Delphi Hartley Michael Obiora as Dr. Oliver Marcet Vanessa Hehir as Belinda Tressel Stirling Gallacher as Cleo Langton Sean Gallagher as Errol Judd Tom Price as Perry Tressel Simon Nagra as Dhruv Varma Sara Crowe as Ailsa Benson Navinder Bhatti as Jayesh Varma Maxim De Villiers as Seb Huntington