Nihil

The Nihil was a formless entity that sought to drain the Doctor of his lifeblood and commandeer his TARDIS. He was tricked by the Doctor into taking himself to the dawn of time, where he was torn apart by the Vultures.

Character History
The Nihil was created at the dawn of time, and suffered extreme persecution and aggression from the other creatures existent at the time, primarily the Vultures. He was able to escape and eventually commandeered a TARDIS. Draining its owner of their lifeblood, he lived there, luring other travellers in so as to drain them. He kept a Dalek within the TARDIS so as to draw in more Time Lords, who he viewed as the greatest feast of all. When the Doctor arrived onboard the Nihil's TARDIS, the Nihil used images of a variety of monsters to taunt him, such as a Weeping Angel, an unnamed beast and the Master. The Nihil captured Jess and drained her lifeblood, and used her form to confront the Doctor. The Nihil crossed over to the Doctor's TARDIS, planning to use it to travel around the universe. The Doctor had set the coordinates to go back to the dawn of time, where the Nihil was torn apart by the Vultures.

Season 1 (2015-2016)

 * 1) Devour