Guest Stars Fiona Dolman as Sarah Barnaby Tamzin Malleson as Dr. Kate Wilding Clare Calbraith as Catrina Harper Ace Bhatti as Harry Dutta Tim Wallers as Jeremy Harper Kelly Price as Tanya Walker Harry Hadden-Paton as Lawrence Janson Kenny Ireland as George Dormer Barnaby Kay as Adrian Sharp Soraya Radford as Gagan Dutta Maureen Lipman as Margaret "Mags" Dormer Charles Daish as Jack Clough Jay Taylor as Peter Groves Uncredited Shaun Lucas as Torch Bearer
