User blog comment:The Black Easterling/So proud/@comment-27324018-20151228155338/@comment-25012056-20151228205118

100% canon.

"Some of them are large and evil. Black Uruks of Mordor." -Gandalf at the Chamber of Mazarbul.

And yes, they can also be Bolg's bodyguards.

Gen. Grievous1138 (admin) comlink 20:51, December 28, 2015 (UTC)