Trefoilan

The Trefoilan race (created by DJ Tyrer) is an amoeboid race capable of taking the forms of beings they absorb. They may be a precursor of the Rutan in some manner, having been ancient at the time of Rassilon and remaining a major power until late in the Universe's history.
They appear in the following stories :
*The Testament of a Time Lord
*Cwm Rheidol (mentioned)
*Genethief (implied in Cwm Rheidol)
Category:Aliens, Creatures and Monsters
Category:Doctor Who Fiction