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
In Which We Meet Mr. Jones the "next chapter" in the story. Pinkner further described the episode as "foundational," as it will set up "a lot of things will be set up which will come to pay off over the next several weeks". The character David Robert Jones is a reference to English musician David Bowie, who was born with that name. "In Which We Meet Mr. Jones" was the first appearance of the character. When actor Jared Harris was first cast for the part, he was told Jones was "possibly a major, important character", as indicated by the episode's title. Whether his character would make