Born in Scotland, he was a distinguished actor known for his roles in classic war films. He gained prominence in the 1950s and 1960s with memorable performances in movies such as "The Bridge on the River Kwai" and "The Great Escape." He was known for his tall stature and commanding presence, often portraying military officers. Trained in stage acting, he brought a refined intensity to his characters. Beyond film, he also enjoyed a successful stage career in London's West End.