Zorgs are an alien species in the Spaceman Spiff universe that comes in different shapes and sizes.
A small specimen was encountered by Spaceman Spiff in a strip at the end of the 1/13 through 1/18 1986 story arc. In it, the Zorg was a counterpart of Principal Spittle which Spiff considered hostile. Here, the Zorg appeared as a reptilian humanoid with two-pronged hands and glasses.
A giant Zorg was encountered by Spaceman Spiff in a Sunday strip. In it, Spaceman Spiff is exploring Planet Bog (it is unknown if he crashed or landed of his own free will), when a terrible rumble informs him that a Zorg is present. The Zorg leaves him no chance of escape, and once captured, Spaceman Spiff is taken to the creature's lair to be cooked alive. The giant Zorg was a swollen, insectlike mass with powerful legs, three eyes and a stiff, segmented tail.
The Zorgs were most prominently featured in a Sunday strip where Spiff had been taken prisoner to a Zorg dungeon. This strip evidences that Zorgs are a civilized race, ruled by the Queen of Zorgs who resides in a fortress on Planet X-13. The Zorg Queen showed contempt for humans, referring to Spiff as "earthling scum".