Jean Lyndsay Torren Marsh (born 1 July 1934 in London) is the actress who portrayed Princess Mombi (a character based on Mombi and Princess Langwidere) and Nurse Wilson in Disney's 1985 movie Return to Oz. Marsh has enjoyed a long and productive dramatic career; she has been nominated for two Golden Globe Awards for her acting roles. She is best known for co-creating and starring in the long-running television series Upstairs Downstairs.