Gundabad Orcs

The Gundabad Orcs are the orcish tribes who took possess of the ancient dwarved city of Gundabad.They are orcs from the north and led by formally independent Chieftains, nut directly ruled by Mordor.

Gundabad Orcs of renown
Akargun Balcog Bolg Bralg the Insane Gorkil Karagat Mukarg Saviga Skorg Uglag Zalg

MERP
MERP mentions four tribes of Gundabad, the Huvorgha, Burzath, Krach-Ul and Ilguz.The Chieftains of Gundabad are the descendants of one of Morgoth´s Generals, the Orc Mukarg.Bolg, Skorg and Zalg are all of his lineage.

The Battle for Middle-Earth
In TBFME the Gundabad Orcs are shown as archaic Orcs similar to those that fought for Sauron in the second Age (seen in the Movie Trilogy´s intro).They are of middle height, have brownish skin, thin hair and yellowish eyes and are clad in dirty brown leather.They have warriors, armed with shierlds and scimitars and Wolfriders.Chieftains are elected in a ceremony of competition in killing Goblins.One of Gundabad´s leaders is the huge Goblin called Gorkil.

The Lord of the Rings SBG
The Lord of the Rings SBG shows the Gundabad Blackshields, the Elite-Unit of Gundabad, as similar to the Moria Goblins although a bit taller and clad in red loins and wolf-pelts, but with Helmets, shields and swords identical to those of the Deep-Orcs of Moria.