William Dennis Weaver (June 4, 1924 - February 24, 2006) was an American actor who was known for his work in various television shows and movies. He is best known for his roles such as Chester in Gunsmoke, Deputy Marshal Sam McCloud in McCloud, the Night Manager in Touch of Evil, and David Mann in Steven Spielberg's 1971 television movie Duel.

For Disney, he voiced Abner in the 2004 Disney film, Home on the Range.