. http://www.youtube.com/v/hSsC9oLOH9Y?fs=1&hl=en_US Gould worked steadily in television in the 1960s and early 1970s, including roles in Dennis the Menace , Dr. Kildare , Hazel , The Twilight Zone , Get Smart , Hogan’s Heroes , The F.B.I. , The Big Valley , Cannon and Mission: Impossible . Gould originated the role of Marlo