Jeannine Riley (born October 1, 1940 in Madera, California, USA) is an American actress.Riley has appeared in guest roles on numerous television series (Route 66, The Man from U.N.C.L.E., The Wild Wild West) and a few feature films such as The Big Mouth (1967), Fever Heat (1968), The Comic (1969) and Electra Glide in Blue (1973).Also made a guest appearance in an episode of The Virginian.She is perhaps best known for her role as Billie Jo Bradley on the first two seasons of the CBS sitcom Petticoat Junction (1963–1965).