The goblins in the Realm of Magic exist in two sects, the green-blooded Miden'Nir and the black-blooded Thoron'Nir.
The only known black bloods are Duff, Ezikiel Rage and Kasib ibn Naji.
Well known green-blooded goblins include Pashalik Mons, Tsabo Tavoc, Ricoberte, Cuwen Mons and Spy.