Buddy Ebsen Barnaby Jones Actor Lee Meriwether Betty Jones Actor John Carter Lt. John Biddle Actor Mark Shera Jedediah Romano "J.R." Jones Actor Bradford Dillman Guest Star Marj Dusay Guest Star Sherry Jackson Guest Star Susan Sullivan Guest Star Robert Webber Guest Star Hank Brandt Guest Star Tony Colti Guest Star Hal England Guest Star Eugene Peterson Guest Star Carl M. Craig Guest Star John Davey Guest Star Kathleen Doyle Guest Star Harvey Fisher Guest Star William Meigs Guest Star Steve Shaw Guest Star Artie Spain Guest Star Gerald Sanford Writer Robert Janes Writer Jack V. Fogarty Writer Mann Rubin Writer Robert Sherman Writer, Director William Keys Writer Robert Heverly Writer Marc Brandell Writer Michael Michaelian Writer Walter Grauman Director Kenneth Gilbert Director Leo Penn Director Michael Caffey Director Robert C. Dennis Writer Leslie H. Martinson Director Michael Preece Director Brigitt Christiansen Writer Joseph Manduke Director Jon Christiansen Writer