She is best known for her performances on Broadway in "Tovarich" (1963) and "Walking Happy" (1966), both roles for which she would be nominated for Tony Awards. Her signature stage role was that of the lead in "High Spirits" (1964).  She studied with Lee Strasberg and at the American Academy of Dramatic Arts. In 1955, she first appeared off-Broadway in "The Infernal Machine." She made her Broadway debut in the musical "Pipe Dream" (1955). She received critical acclaim for her role opposite Edward Woodward, Tammy Grimes, Carol Arthur, and the legendary Beatrice Lillie in the 1964 musical "High Spirits," which was based on Noël Coward's comedy, "Blithe Spirit." She was also known for her guest appearances on the television show "Hogan's Heroes," on which she would meet her future husband Werner Klemperer who starred as Colonel Klink. Her other TV appearances included "Kate and Allie," "Room 222," "The Odd Couple," "Cannon," "227," and "Honey West," among others. In the 1970s, she appeared on CBS television's daytime drama "The Guiding Light," twice, as Audrey Frost Mills in 1974 and as Gladys Shields in 1978. She also appeared in the first season of "Barnaby Jones;" episode titled "To Denise, with Love and Murder"(April 22, 1973). Her film appearances include "Yours, Mine and Ours" (1968), "The Swimmer," (1968) and "Ghostbusters II" (1989). She was first married to actor Werner Klemperer, from 1969 until they divorced in 1975. She then married her second husband, actor and director Douglas Seale in 1992, and they remained married until her death.