John T. Dugan was an American screenwriter. He wrote for television programs, including Bonanza, Mr. Novak, 12 O'Clock High, Dr. Kildare, Adam-12, Star Trek: The Original Series, Ben Casey, Mission: Impossible, Columbo and Little House on the Prairie.
John T. Dugan
Deceased · Born: Oct 11, 1920 · Died: Dec 24, 1994
