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
David Graham (epidemiologist) regardless of whether the drugs are safe or needed" In 2010, Graham and one of his FDA colleagues, Kate Gelperin, have called for the popular diabetes drug Avandia to be pulled from the market. Their study of the drug found possible evidence of an increased incidence of mortality; however, they found no indication of an increased risk of heart attack, contrary to other published studies. David Graham (epidemiologist) David J. Graham is an American epidemiologist who is the Associate Director of the Food and Drug Administration's (FDA)Office of Drug Safety. Graham has spent his career at the FDA studying the