Mother was Geraldine Kaplan (1918-1987). Father was Eugene Pleshette (1914-1991).
Met her future husband, Tom Poston, when they appeared together in the 1959 Broadway comedy "The Golden Fleecing". However, they didn't marry for more than 40 years.
Was the producers' original choice for the role of Catwoman on the "Batman" (1966) TV show. When negotiations broke down, the part went to Julie Newmar, who made it her own.
December 2000 - Announced her engagement to Tom Poston, age 79. Each had co-starred on a Bob Newhart show, but different versions - she was in the 1970s version, he was in the 1980s. However, Poston appeared in a recurring role on the '70s version as Bob Hartley's old friend Cliff "The Peeper" Murdock. Pleshette also appeared on the '80s version finale that is one of the best series finales of all time -- a segue between the two shows.
Underwent chemotherapy treatment at Los Angeles' Cedar-Sinai Medical Center for lung cancer [August 2006].
Received a star on the Hollywood Walk of Fame, posthumously, on her birthday, January 31, 2008.