Alex Summerfield, Roger's Sister in Law The Long Dark Hall (1951) - Rose Mallory Those People Next Door (1953) - Anne Twigg The Happiness of Three Women (1954) - Irene Jennings The Man Who Loved Redheads (1955) - Bubbles Merry Andrew (1958) - Letitia Fairchild North by Northwest (1959) - Hospital Patient (uncredited) The Tingler (1959) - Isabel Stevens Chapin Battle of the Coral Sea (1959) - Lt. Peg Whitcomb Perry Mason "The Case Of the Dangerous Dowager" (1959) - Sylvia Oxman "The Case of the Bogus Buccaneer" (1966) - Ann Eldridge Yancy Derringer (1959) - Lady Charity, Ep. 20, "Hell and High Water" Private Road (1971) - Erica Talbot References External links 1926 births 1974 deaths English film actresses English television actresses Suicides in Chelsea Drug-related deaths in England Barbiturates-related deaths 20th-century English actresses Suicides by poison Alumni of RADA 1974 suicides Female suicides