Overview:Red Nose Day 2011 - The American actress Kim Cattrall, best known for playing Samantha in Sex and the City, will join forces with Comic Relief veterans Joanna Lumley, Jennifer Saunders, Victoria Wood for the spoof. Harry Enfield, Tim Vine, Dale Winton, Simon Callow will also take part in the irreverent take on the popular drama about life above and below stairs in the Edwardian era. Victoria Wood plays "Mrs Crawler" and Joanna Lumley the housekeeper figure. The sketch will apparently reveal how much of a flirt Lady Mary really is, and whether Thomas the dastardly second footman is as catty off camera as he is on it.