The Toclafane

Home Planet: Utopia
Life Form: Spherical Human-Based Cyborgs

The Toclafane are actually the humans from Malcassairo, from Utopia. Humans travelled to the planet Utopia, finding it dark, cold, and inhospitable. To survive, the Human-race evolved into the Toclafane, their final evolution. The Master flew there in the Doctor’s Tardis, with his wife, Lucy, and saw what the human race had become. He offered them the Earth, which was all part of his plan, and took them back in time! The Toclafane were cyborgs, the faces of Humans integrated into metal spheres that are sealed shut, making themselves "pretty". They became a hive mind, making themselves almost invincible, as well as evil and child-like in their personality. They are childlike because they tried degressing themselves into children. They could glide through the air, almost indestructible, even through space. Concealed within the sphere are spikes and blades that can extend. A Toclafane can use them to slice up a Human being. The spheres are also equipped with a laser that can turn Humans into ash. The spheres can be shot down by an electrical surge of 58.5 kiloamperes, transferred charge 510 mega joules precisely, however, this is most unlikely due to the amount of power and aming involved. The Master announced that he’d made contact with a race of friendly aliens. The Toclafane trusted the Master. The Master had, by this time, converted the TARDIS into a paradox machine, allowing the six billion Toclafane to invade Earth in their own past and change their own past history. With the Toclafane, the Master built the beginnings of a new Time Lord Empire with the army of six billion Toclafane.

Episodes: The Sound of Drums, Last of the Timelords