Shakri

Shakri were supposed myths in Time Lord history, but became true when the Eleventh Doctor met a hologram, referred to by the Doctor as a "propaganda poster", aboard a ship hovering over the Earth who had deposited mysterious cubes onto the surface.

	Humanoid
	The Power of Three

Biology

to be added

History

The Doctor explained that the Time Lords were taught about the Shakri when they were young. However, they were believed to be legends. (TV: The Power of Three)