Hunter (The Curious Tale of Spring-Heeled Jack)

Appearence
The Hunters were dangerous predators described as being large, brown, hairless creatures with bat-like wings, long tails, sharp claws and long horned faces.

Abilities
They could travel through space and are naturally attracted to rifts in time and space. They are also immune to time-based afflictions. Hunters generally hunt alone, since they can easily kill a humanoid by themselves. They generally hunt by smell. They could also spit out a gold, acidic, rapidly hardening paste, which they use to trap their prey. (NA: The Pit) Hunters could also use their mouths to unleash psychic attacks. (DWM: The Curious Tale of Spring-Heeled Jack)

History
A Hunter called Jack was sent to Earth to kill Morjanus. There homeplanet was afire and many Hunters were dying. Jack explains to the Doctor that his home planet is no longer there. (DWM: The Curious Tale of Spring-Heeled Jack)