Charlotte Cornwell. Actress: The Saint - Der Mann ohne Namen. Londoner Charlotte Elizabeth Cornwell was born on April 26 1949, the younger half-sister of novelist John le Carré -- whose real name was David Cornwell -- and his novel, 'The Little Drummer Girl', had a leading character based on her. Le Carré was disappointed that in the film version the star was not Charlotte but the more bankable Diane Keaton. Charlotte...