Writing · b. 1920 John Mantley Acting The Secret Fury Hotel Clerk (uncredited) 1950 Other Credits Gunsmoke: The Last Apache Executive Producer 1990 Gunsmoke: Return to Dodge Producer 1987 The Macahans Executive Producer 1976 Cutter's Trail Producer 1970 My Blood Runs Cold Screenplay 1965 Woman Obsessed Novel 1959 The Parson and the Outlaw Writer 1957 The 27th Day Screenplay 1957 Agent-readable