being cast in the starring role as the passive and demure April Dancer, in the short-lived television series The Girl from U.N.C.L.E., a spin-off of The Man from U.N.C.L.E. Shortly after the series' debut, she was featured on the cover of TV Guide (December 31, 1966 – January 6, 1967). The article mentions her "117-pound frame is kept supple with 11 minutes of Royal Canadian Air Force exercises every morning... Unlike her fellow U.N.C.L.E. agents, the ladylike April is not required to kill the bad guys. Her feminine charms serve as the bait, while her partner Noel Harrison provides the fireworks." The series lasted for only one season (29 one-hour episodes), airing from September 16, 1966, to April 11, 1967. In 1967, Powers appeared in Warning Shot with David Janssen. Her 1970s movies include The Boatniks (1970), Herbie Rides Again (a sequel to The Love Bug) and The Magnificent Seven Ride! (1972). She was a guest star in the Robert Wagner series It Takes a Thief in 1970. The two co-starred in the popular Hart to Hart series nine years later. Before success with Hart to Hart, she starred in The Feather and Father Gang as Toni "Feather" Danton, a successful lawyer, whose father, Harry Danton, was a smooth-talking ex-con man (played by Harold Gould). It ran for a half-season (13 episodes). Powers' many guest roles in other popular TV shows include: Lancer (1969), McCloud (1971), The Mod Squad (1972),Banacek (1972), Kung Fu (1974), The Rockford Files (1975), Three for the Road (1975), The Six Million Dollar Man (1976), The Bionic Woman (1976), and McMillan & Wife (1977). Powers appeared in these shows long after she signed a contract with Universal Studios in 1970. Coincidentally, her longtime friend and Hart to Hart series co-star Wagner signed a contract with Universal, but did not guest-star in more shows than Powers did. In 1977, Powers played Sally Whalen in the six-part television miniseries Washington: Behind Closed Doors, produced by Paramount Television. It is based on John Ehrlichman's book The Company, a novel inspired by the author's time with the Nixon administration. The series had Powers cast with a strong cast, including Cliff Robertson, Jason Robards, Robert Vaughn, Lois Nettleton and John Houseman. In 1978, Powers starred with Paul Clemens and Brian Dennehy in the TV movie A Death in Canaan, directed by Tony Richardson. This TV movie was a dramatization of the