William Denison McKinney (September 12, 1931 – December 1, 2011) was an American character actor.
He played the sadistic mountain man in John Boorman's 1972 film Deliverance and performed in seven Clint Eastwood films, most notably as Captain Terrill, commander pursuing the last rebels to "hold out" against surrendering to the Union forces in The Outlaw Josey Wales.