David Graham was born on July 11, 1925 in Hackney, London, England as David Michael Graham. He is an actor and writer, known for Supercar (1961), Stingray (1964) and Fireball XL5 (1962).
He is widely acknowledged as one of Britain's most versatile voice actors. In 2001, he did commercials for Zed Credit Cards in New Zealand as one of his characters, Brains, from the cult television series Thunderbirds (1965). The company's tagline is "Zed - the card with Brains".
He was one of the earliest Dalek voice actors on the long-running science fiction series Doctor Who (1963), contributing to several stories which featured the First Doctor, William Hartnell.