The Unvoss were a time-active species who belonged to the Temporal Powers. They were represented by Pule. (AUDIO: Square One) In a Matrix projection of Gallifrey being restored after the Dogma Virus, Kolspen of Unvoss travelled to the planet to learn about time travel from the Time Lords. (AUDIO: Renaissance)
Shortly after the official start of the Last Great Time War, a massive Dalek fleet took out the Unvoss along with the Sunari. (AUDIO: Desperate Measures)