Donald P. Bellisario
Donald Paul Bellisario (born August 8, 1935) is an American television producer and screenwriter. He is known for creating and sometimes writing episodes for the TV series Magnum, P.I. (1980–1988), Tales of the Gold Monkey (1982–1983), Airwolf (1984–1987), Quantum Leap (1989–1993), JAG (1995–2005) and NCIS (since 2003).