Since its 2005 return, the series has also introduced new recurring aliens: Slitheen (Raxacoricofallapatorians), Ood, Judoon, Weeping Angels and the Silence.
Siden dens 2005 tilbagevenden, har serien også introduceret nye genoptrædende rumvæsner: Slitheen (Raxacoricofallapatorianer), Ood, Judoon, Grædende Engle og Stilheden.