Blonde, blue-eyed and petite, Neil made a reputation as an ingenue, notable for her ability to shift rapidly from a "girl next door" persona to that of a seductress.
Playing the role of "Bunny", Neil was paired with her husband Anthony K. Roberts, a fellow actor who later achieved fame as a photojournalist.
[2] Neil then returned to television in the hit show The Man From U.N.C.L.E., playing the role of Sarah, a beautiful-yet-brainy secret agent given to moments of whimsy.
Although the actress Stefanie Powers was later tapped for a similar role in the spinoff series The Girl From U.N.C.L.E., Neil also appeared in The Karate Killers (1967), a theatrical release featuring The Man From U.N.C.L.E.
While active in modeling and television commercials until the 1970s, Neil's last network television role was as "Miss Plumpett" on the 1966 season of The Beverly Hillbillies, in which she played a sophisticated foil to Jethro Bodine, played by Max Baer, Jr. Neil was married in 1960 to Anthony K. Roberts, her co-star in The Beach Girls and the Monster and then later the recipient of the 1974 Pulitzer Prize for photojournalism.