Barry Gray composed the music for the Dalek movies produced in the 1960s and starring Peter Cushing as Dr. Who. Gray is best known for his work composing themes and incidental music for Gerry Anderson's numerous Supermarionation and live-action series, including Stingray, Thunderbirds, Captain Scarlet, UFO, and the first season of Space: 1999.
Some reference works erroneously credit Gray with composing the theme and other music for the Doctor Who TV series. Although neither of the Cushing films used the famous Doctor Who theme, Gray did at one point contribute sound effects to Eric Winstone's rendition of the theme, which has been reissued on numerous compilation CDs.