Sandra Goldbacher Director Emma Watson Pauline Fossil Actor Yasmin Paige Petrova Fossil Actor Lucy Boynton Posy Fossil Actor Richard Griffiths Great Uncle Matthew Actor Emilia Fox Sylvia Brown Actor Victoria Wood Nana Actor Eileen Atkins Madame Fidolia Actor Harriet Walter Dr. Smith Actor Gemma Jones Dr. Jakes Actor Peter Bowles Sir Donald Houghton Actor Lucy Cohu Theo Dane Actor Marc Warren Mr. Simpson Actor Heidi Thomas Writer