Title is a play on the 1951 movie "I was a Communist for the F.B.I."
Guest star Barbara Bain would work again with Bob Denver two decades later in another spy-themed story within Denver's other iconic TV franchise, The Harlem Globetrotters on Gilligan's Island (1981), Bain joined on that occasion by her husband Martin Landau who in the interim had co-starred with her in the classic spy series Mission: Impossible (1966) as well as the sci-fi series Space: 1999 (1975).