He won an Academy Award for his tough-as-nails portrayal of the titular character in Patton. He also played Ebenezer Scrooge in director Clive Donner's A Christmas Carol.
As a child, he strove to become a writer and wrote many unpublished short stories.
He played General Buck Turgidson in Stanley Kubrick's Dr. Strangelove.
He starred in Patton with Karl Malden.