Serena Harriet Scott Thomas (b September 21, 1961) is an English actress. Serena Scott Thomas is best known for her portrayal of the character Dr Molly Warmflash in the 1999 James Bond film The World Is Not Enough as well as appearing in the 1993 TV film Harnessing Peacocks. She appeared as Gwendolyn Post on an episode of Buffy the Vampire Slayer called Revelations.