Click on films, television and plays for a list of the roles that Margaret Lockwood played.
Biography from Leonard Maltin's Movie Encyclopedia:
Actress. (b. Sept. 15, 1916, Karachi, as Margaret Day; d. July 15, 1990.) Flashing-eyed, darkhaired British beauty who was successful as a screen ingenue in the 1930s and early 1940s, but found her real metier in the portrayal of wicked, mysterious females in costume dramas made later in the decade. Already an experienced stage actress when she made her film debut in 1934's Lorna Doone Lockwood adapted readily to the new medium. She appeared in Midshipman Easy (1935), The Amateur Gentleman (1936), Dr. Syn (1937), Bank Holiday (1938), and several other Britishmade films before achieving international recognition as the plucky heroine of Alfred Hitchcock's The Lady Vanishes (1938). She went to Hollywood in 1939, but her two American films-Susannah of the Mounties and Rulers of the Sea didn't set the town on fire, and she returned to England. She gave a first-rate performance in Carol Reed's coal-mining drama, The Stars Look Down and was an ideal leading lady in the Hitchcockian Night Train to Munich (both 1940).
Lockwood starred in a number of unimportant British films during the war years, then suddenly made an amazing about face and took a deliciously malevolent starring role as The Wicked Lady (1945), a scheming vixen who teams with highwayman James Mason in that costume melodrama. It was a rousing success that revitalized her career, and she continued to star in period pictures. Lockwood retired from films fairly early, sensing that her starring career was drawing to a close. She did, however, return to the screen as Cinderella's wicked stepmother in The Slipper and the Rose (1977). Her autobiography, "Lucky Star," was published in 1955.