Buddy Ebsen Barnaby Jones Actor Lee Meriwether Betty Jones Actor John Carter Lt. John Biddle Actor Mark Shera Jedediah Romano "J.R." Jones Actor Bonnie Ebsen Guest Star Andrew Robinson Guest Star Kip Niven Guest Star Fred Sadoff Guest Star Kevin O'Brien Guest Star Sondra Currie Guest Star Jimmy Rogers Guest Star Kay St. Germain Guest Star Ty Henderson Guest Star Jeff Harlan Guest Star Robert I. Holt Writer Michael Caffey Director