Guest Stars Tallulah Fox as Sarah Beatty Fifi Fox as Sarah Beatty Kirsten Foster as WTC Stapleton Catherine Steadman as Polly Beatty Neil Stuke as Professor Andrew Crane Tuppence Middleton as Vicki Walmsley Sanjeev Bhaskar as Kanan Dutta Dominic Mafham as Frank McLean Emily Joyce as Jane Grace Beatie Edney as Justine Skinner Lesley Vickerage as Katherine Dutta Hermione Gulliford as Lucy Sopher Adam Wadsworth as Joshua Grace
