Guest Stars Deborah Poplett as Anna Chandler Ana Sofrenovic as Marija Ovcar Ian Burfield as Frank Nicholls Holly Newman as Tanya Clarke Ruby Snape as Maggie Nicholls Paula O'Grady as Sarah Whitehouse Natalie Press as Claire Bradley Shiv Grewal as Dr. Atur Kumar Emma Jacobs as Liz Bradley Sam Walker as Matthew Clarke