The Fisher King's species

The Fisher King was ruler of an unknown species.

History
Following his apparent death, he was transported to Earth by a Tivolian named Albar Prentis. He was actually in stasis and killed Albar, who became a ghost-like transmitter that mouthed the words "the dark, the sword, the forsaken, the temple" these words were a broadcast to the rest of the species that told the location of the king's stasis chamber. The species was then supposed to invade Earth. He was later stopped by The Doctor.