The daughter of a lawyer and a schoolteacher, Nancy Kulp was born on August 28, 1921 in Harrisburg, Pennsylvania, and grew up in nearby Mifflintown.
Upon graduation, Kulp enlisted in the WAVEs and rose to the rank of lieutenant. She stated that patriotism motivated her to join up, and added that "the all-female atmosphere" also appealed to her. In the long run, however, she could not envision a career for herself in the military, and so she left the service in 1945.
Returning to civilian life, she took a job as publicity director at a Miami radio station in 1946. A few years later she moved to a television station, where she directed and acted.
On April 1--April Fools' Day--1951, Kulp married Charles Dacus, a rather mysterious figure. In a 1989 interview Kulp refused to address speculation that Dacus was gay--or, indeed, even to say whether or not he was alive or what his profession was or had been.
It was apparently Dacus who encouraged Kulp to pursue her ambitions as an actress, and she was quickly off to Hollywood.
She soon won a supporting role in George Cukor's The Model and the Marriage Broker (1951), in which she played the sort of character that would become her stock-in-trade, a spinster.
More movie roles--some uncredited--followed. Among Kulp's more memorable films were Nunnally Johnson's The Three Faces of Eve (1957), Nancy Myers's The Parent Trap (1961), and Melvin Frank's Strange Bedfellows (1965).
Most of Kulp's screen work came on television. Over the course of her career she made dozens of guest appearances on various shows, the vast majority of them in comedic parts. Her first recurring role was as bird-watcher Pamela Livingstone on The Bob Cummings Show (1955-1959). Paul Henning, the writer for the program, created a role for Kulp in a subsequent project, The Beverly Hillbillies (1962-1971).
Kulp played Miss Jane Hathaway, a smart, competent, and confident bank secretary--and, of course, a spinster. Most improbably, the intellectual Miss Hathaway was infatuated with the young and handsome but extremely dim Jethro (played by Max Baer, Jr.). Kulp called the mismatch "the impossible dream, played strictly for laughs," adding, "I doubt anyone could picture Jane and Jethro walking down the aisle together, or would want to."
Kulp received an Emmy Award nomination in 1967 for her performance on the show.
After the run of The Beverly Hillbillies ended, Kulp was a regular on the short-lived Brian Keith Show (1973-1974) and continued to appear as a guest artist on other programs and to play minor roles in films. She also worked steadily in summer stock and dinner theater, and had a turn on Broadway in 1982 in Paul Osborn's Mornings at Seven.
In 1984 Kulp, who had long been interested in politics and campaigned in support of other candidates, made her own bid for public office. Having settled on a farm in Port Royal, Pennsylvania, near her hometown, she ran as a Democrat for the United States House of Representatives in the state's Ninth District against a Republican who had already held the seat for twelve years.
During the campaign Kulp's former Beverly Hillbillies co-star Buddy Ebsen made a radio commercial calling her "too liberal for Pennsylvania" and endorsing her opponent. Kulp was incensed, complaining that the Californian Ebsen knew nothing about Pennsylvania politics, and stating that she "was speechless at such a betrayal, and something so needless and cruel."
After her defeat in the election, Kulp spent a year at Juniata College in Huntingdon, Pennsylvania, teaching film and drama. As artist-in-residence, she also directed and acted in the school's production of William Saroyan's The Time of Your Life.
In a departure from her usual comedic roles, Kulp played the Nurse in Romeo and Juliet at the 1987 Georgia Shakespeare Festival in Atlanta.
Kulp returned to California, where she served on the board of the Screen Actors Guild and was active in various organizations, including the Humane Society of the Desert, United Cerebral Palsy, and the Desert Theatre League. Gary Walker, the president of the theater group, praised Kulp, calling her "a sweet and caring lady" who "was there for us when we needed her."
Kulp died of cancer at her home in Palm Desert, California on February 3, 1991.