The Gozerian Servitors are huge beasts with green eyes and faces appeared to be skeletal and bodies made of stone. On their backs are seems to be Boson Darts and tombstones.
Gozer was known to enslave denizens from other planes of existence to do his bidding and aid in his conquests. These creatures feel no loyalty toward the Gozerian, but fight fiercely for him knowing that victory will mean their pact is dissolved and they can return from where they came.
Many of these servitors defy subcategorization simply because they come from such a distant realm that Tobin of the Tobin's Spirit Guide have no basis for classification of these creatures.