David Graham is an English character actor and voice artist. Born in London, after a period in the Royal Air Force as a radar mechanic he trained as an actor in New York City, and has since worked mainly on British television series.
Graham played several characters in the science-fiction TV series Doctor Who, most notably the Dalek voices in the 1960s serials The Daleks, The Dalek Invasion of Earth, The Chase (where he also provided Mechanoid voices) and The Daleks Master Plan. He performed in person as barman Charlie in The Gunfighters (1966) and foreign time-travel scientist Professor Kerensky in City of Death (1979).
He provided the voices of Gordon Tracy, Brains, Parker and Kyrano in the TV series Thunderbirds (1965–66) and its film sequels Thunderbirds Are Go (1966) and Thunderbird 6 (1968). Other credits from his 1960s association with producer Gerry Anderson include Four Feather Falls, Supercar, Fireball XL5, Stingray and The Secret Service.
Graham appeared in Callan, Timeslip, So Haunt Me, Danger Man, The Saint, Howards' Way, Softly, Softly, Armchair Thriller, Ace of Wands, Justice, The Regiment, The Bill, The Fixer, The Sentimental Agent, The Avengers (specifically the 1963 episode "Man in the Mirror") and The Tomorrow People (puppet voices in two episodes).
In the "1984" TV advertisement made to introduce the Apple Macintosh, he played the role of Big Brother. Other voice work includes the animated children's TV series Moomin and the film Dominion: Tank Police.