Guest Stars Philip Arditti as Dr Metin Ozkul Bhav Joshi as Dr Ant Vyas Eleanore-Beatriz Viveiros as Robyn Henderson Christopher Hatherall as Nick Henderson Naomi Denny as Chantelle Gregory Henry Meredith as Tommy Henderson Donna Banya as Emma Mutamba Irungu David Ganly as Richard Speller Jodie McNee as Jules Jarman Cat McKeever as Tracey Elsom Georgia Goodman as Divina Aquino Joseph Charles as Archie Williams Mary Woodvine as Cressida Frost Angela Bain as Sally Wilson Edward Crook as Jake Samuels Coco Prada as Enrico Aquina Clíodhna McCorley as Heather Evans Antoinette Morelli as Daughter