Does matriarch of a pale, life draining family sound familiar? Helen McRory does seem to have particular taste for these roles. For Whovians the description can be taken a bit more literally as she plays Rosanna Calvierri in Series 5's The Vampires of Venice. For Harry Potter fans she will always be best known as Narcissa, mother of Draco Malfoy. Something tells us his father will hear about this.