William Martin Gulager, better known as Clu Gulager, was an American television and film actor and director born in Holdenville, Oklahoma. He first became known for his work in television, appearing in the co-starring role of William H. Bonney in the 1960–1962 NBC television series The Tall Man and as Emmett Ryker in another NBC Western series, The Virginian. He later had a second career as a horror film actor, including a lead part in Dan O'Bannon's The Return of the Living Dead (1985). He also was in A Nightmare on Elm Street 2: Freddy's Revenge (1985). In 2005 he started acting in his son's horror films — the Feasts films and Piranha 3DD — in his 80s.

McQ is a 1974 American Panavision neo-noir crime action film directed by John Sturges and starring John Wayne. It costars Eddie Albert, Diana Muldaur, and Al Lettieri, and features Colleen Dewhurst, Clu Gulager, David Huddleston, Julian Christopher, Roger E. Mosley, and William Bryant in supporting roles. The film was shot in the State of Washington, making extensive use of locations in Seattle and with a sequence near the end filmed on the Pacific Coast at Moclips.