Don S. Davis (born August 4, 1942) in the Ozark Mountains of Missouri, is an American actor. Davis is best known for playing Major General/Lieutenant General George S. Hammond in the science fiction television series Stargate SG-1 (1997-2004), and earlier for playing Major Garland Briggs on the television series Twin Peaks (1990-1991).
He is a character actor, former theatre professor, painter and was a captain in the United States Army in the 1960s. He has a Bachelor of Science Degree in theater and art from Southwest Missouri State College. He received a Masters Degree in theatre from the Southern Illinois University Carbondale in 1970. He taught for several years before returning to SIU to complete a PhD in theatre. He began working in the film industry in the 1980s, while teaching at the University of British Columbia. In 1987 he stopped teaching in order to pursue acting full-time.
Davis grew up painting, sculpting and drawing. He has continued to pursue these crafts his entire life, supplementing his income with design commissions and art sales. Not satisfied with just acting, he is also a visual artist, spending most of his free time painting or carving.