David Graham (actor) in which he also provided Mechanoid voices) and "The Daleks' Master Plan" (1965–66). He performed in person as barman Charlie in "The Gunfighters" (1966) and as time-travel scientist Professor Kerensky in "City of Death" (1979). Graham also provided the regular voices of Gordon Tracy, Brains, Parker and Kyrano for the Supermarionation TV series "Thunderbirds" (1965–66), as well as its film sequels: "Thunderbirds Are Go" (1966) and "Thunderbird 6" (1968). Other credits from his association with "Thunderbirds" producer Gerry Anderson include "Four Feather Falls" (1960), "Supercar" (1961–62), "Fireball XL5" (1962–63), "Stingray" (1964–65) and "The Secret Service" (1969). Graham has also appeared
Ronny Graham the character who dropped the clapperboard repeatedly in a famous, 1969 Alka Selzer "Spicy Meatball" advertisement and played the part of "Mr. Dirt" on a series of commercials for Mobil Oil in the 1970s. In 1996, he appeared as the character Louis Foukold in the screen adaptation of the Jon Robin Baitz play "The Substance of Fire." Graham was married four times, to Jean Spitzbarth (1947–1950), with whom he had one child; actress Ellen Hanley (1951–1963), with whom he had two children; Sigyn Lund (1965–1973), with whom he had two children; and Pamela Gill (1974–1999), to whom he was married