A stage actress of long standing in her native England, aristocratic leading lady Isobel Elsom made her first Broadway appearance in 1926. Her biggest stage hit was in the role of the wealthy murder victim in 1939's Ladies in Retirement, a role she repeated (after a two-year, nonstop theatrical run) in the 1941 film version. Nearly always cast as a stately lady of fine breeding, Elsom played everything from Gary Cooper's soon-to-be mother-in-law in Casanova Brown (1946) to a movie studio executive in Jerry Lewis' The Errand Boy (1962). She was also seen as Mrs. Eynesford-Hill in the 1964 movie adaptation of My Fair Lady. At one time married to director Maurice Elvey, Isobel Elsom was sometimes billed under the last name of another husband, appearing as Isobel Harbold.