The Light (1963: The Assassination Games)

The Light were the secret rulers of the universe, similar to the Illuminati in Earth conspiracy theories. They applied their genes in pre-natal drugs of other species to take over the unborn, and existed as a thousand species across a thousand worlds through time and space. Ace compared them to cuckoos.

They arrived on Earth in 1850 and, seeing the British Empire as the greatest power in the world, took a foothold. However, by 1963 the United States of America and the Soviet Union wer the superpowers, and the Light had not inflitrated them. They developed the Starfire warhead project as a means of destrying America who would be expecting an attact from the Soviets during the Cold War. The Seventh Doctor helped to defeat them, but acknowledged that they were real and would want revenge. (AUDIO: 1963: The Assassination Games)