Dean Hargrove Director (1) The Return of the World's Greatest Detective (1976) Writer (14) Melanie Darrow (1997) Ray Alexander: A Menu for Murder (1995) Diagnosis: Murder (1993) Diagnosis Murder (1992) Father Dowling Mysteries (1989) Matlock (1986) The Return of the World's Greatest Detective (1976) Columbo (1971) McCloud (1970) The Name of the Game (1968) The Helicopter Spies (1968) One Spy Too Many (1966) The Man from U.N.C.L.E. (1964) My Three Sons (1960) Producer (12) Hex (2004) Diagnosis: Murder (1993) A Twist of the Knife (1993) The House on Sycamore Street (1992) Father Dowling Mysteries (1989) Fatal Confession: a Father Dowling Mystery (1987) Jake and the Fatman (1987) Return to Mayberry (1986) Matlock (1986) Madigan (1972) Columbo (1971) The Name of the Game (1968)