Silostophan

From Tardis Wiki, the free Doctor Who reference

Silostophans were a species who lived on the southern hemisphere on the planet Salostopus, located in the Andromeda Galaxy.

In 2009, the Christmas Corporation enslaved some Silostophans to work in their factory on Salostopus. They were freed by the Fourth Doctor and Adric. (PROSEPlanet of the Elves)