times as a guest performer, although he never received an opening-title credit. Usually cast as a scientist, he played the primary villain in one episode, "The Cherry Blossom Affair". Another five-time guest star was Jill Ireland, who at the time was married to David McCallum. Ricardo Montalbán appeared in two episodes as the primary villain. "The Five Daughters Affair" featured a cameo appearance by Joan Crawford. Janet Leigh and Jack Palance appeared in "The Concrete Overcoat Affair" and Sonny and Cher made an appearance in the third season episode "The Hot Number Affair". Other notable guest stars included: Richard Anderson, Eve Arden, Martin Balsam, Whitney Blake, Joan Blondell, Lloyd Bochner, Judy Carne, Roger C. Carmel, Ted Cassidy, Joan Collins, Walter Coy, Yvonne Craig, Broderick Crawford, Joan Crawford, Kim Darby, Albert Dekker, Ivan Dixon, Chad Everett, Anne Francis, Harold Gould, Grayson Hall, Pat Harrington Jr., James Hong, Allen Jenkins, Patsy Kelly, Richard Kiel, Marta Kristen, Elsa Lanchester, Martin Landau, Angela Lansbury, Herbert Lom, Julie London, Jack Lord, Lynn Loring, Jan Murray, Leslie Nielsen, William Marshall, Eve McVeagh, Carroll O'Connor, Susan Oliver, David Opatoshu, Leslie Parrish, Eleanor Parker, Slim Pickens, Vincent Price, Dorothy Provine, Cesar Romero, Charles Ruggles, Kurt Russell, Telly Savalas, Barbara Shelley, Nancy Sinatra, Guthrie Thomas, Terry-Thomas, Rip Torn, Fritz Weaver, and Elen Willard (in her last acting appearance). Gadgets Communications devices The characters in the series had a range of useful spy equipment, including handheld satellite communicators. A catchphrase often heard was "Open Channel D" when agents used their pocket radios; these were originally disguised as cigarette packs, later as cigarette case, and still later as fountain pen. One of the original pen communicator theatrical property is now in the museum of the CIA. Replicas have been made over the years for other displays, and this is the second-most-identifiable prop from the series (closely following the U.N.C.L.E. Special pistol). U.N.C.L.E. car A few of the third-and fourth-season episodes featured an "U.N.C.L.E. car", which was a modified Piranha Coupe, a plastic-bodied concept car based on the Chevrolet Corvair chassis built in limited numbers by the custom car designer Gene Winfield. The U.N.C.L.E. car had been lost after the end of the TV series, but it was found in Colorado during the early 1980s, and it was restored to original condition by Oscar-winning special effects artist Robert Short of California. Weaponry One prop, designed by the toy designer Reuben Klamer often