SARAH MOFFAT (also known as Clemence Dumas; Clemence Delice or Sarah Delice) was a major character in the 1970's period drama, Upstairs, Downstairs as well as its spin-off Thomas and Sarah. In both series, she was played by actress Pauline Collins. When the series was originally devised, Eileen Atkins, the series co-creator along with Jean Marsh (who played Rose), was slated to play Sarah, but because of a prior stage play, in which she played Queen Victoria; she wasn't able to play the role. Hence, Pauline Collins took over the role of Sarah.