His more film & television credits include: Yesterday's Dreams (2005); Star Trek: Up to date Voyages (2004); Raising Dead (2002); True Crime (1999); Miracle on 34th Street (1994); Sommersby (1993); Parenthood (1990) (TV series); Uncle Buck (1989) (voice); She's Having a Baby (1988); Planes, Trains & Automobiles (1987) (uncredited); Welcome Home (1986); Grandview, U.S.A. (1984); Last Plane Out (1983); Separate Ways (1981); Blind Ambition (1979) (mini TV series): The Man (1972); Now You See Him, Now You Don't (1972); The Homecoming: A Christmas Story (1971) (TV); Escape from the Planet of the Apes (1971); Brewster McCloud (1970); The Gypsy Moths (1969); The Angry Breed (1968); The Detective (1968); Hour of the Gun (1967); The Americanization of Emily (1964); One Man's Way (1964); The Farmer's Daughter (1963) (TV series); For Love or Money (1963); Cattle King (1963); and To Kill a Mockingbird (1962).

Although William Windom has mass produced guest appearances in numbers of TV shows in the period of his yearn career, his better known performance has probably get on Star Trek as Commodore Matt Decker in the season Ii episode The Doomsday Machine.