- Served three years in the Army, including a stint in Korea during the Vietnam War.
- Taught at the University of British Columbia in Vancouver, B.C. during the 1980s; left teaching to pursue acting.
- Worked as a stunt double for Dana Elcar on the TV series MacGyver; there he met star Richard Dean Anderson, with whom he would later costar on Stargate SG-1.
- Best known for his roles as base commander Gen. George Hammond on Stagate SG-1 and Maj. Garland Briggs in the series Twin Peaks.
- His artistic endeavors included set design, painting and woodcarving; his pieces reflected his love of the Missouri Ozarks, where he grew up.