Eleanor Audley (née Zellman; November 19, 1905 – November 25, 1991) was an American actress with a distinctive voice and a diverse body of work. She played Oliver Douglas's mother, Eunice Douglas, on the CBS sitcom Green Acres (1965–1969), and provided Disney animated features with the voices of the two iconic villains: Lady Tremaine in Cinderella (1950), and Maleficent in Sleeping Beauty (1959). She had roles in live-action films, but was most active in radio programs such as My Favorite Husband as Liz Cooper's mother-in-law, Mrs. Cooper, and Father Knows Best as the Anderson family's neighbor, Mrs. Smith. Audley's television appearances include those in I Love Lucy, The Dick Van Dyke Show, Mister Ed, Hazel, The Beverly Hillbillies, Pistols 'n' Petticoats, and My Three Sons.