From 2005 to 2017, Gold served as musical director of science fiction drama "Doctor Who" for the BBC. In this capacity, he created a new arrangement of the show's theme (originally composed by Ron Grainer) and also composed the show's incidental music. Silva Screen released a compilation of Gold's "Doctor Who" incidental music from the first and second series, entitled ', on 11 December 2006. A second CD, ', was released on 5 November 2007 and a third, "", was released in November 2008. He has also been seen very briefly in the show itself, making a cameo appearance (and wearing a false moustache) in the 2007 Christmas special "Voyage of the Damned".