Talk:Dol Guldur (Biome)/@comment-108.237.160.209-20151002024223/@comment-96.4.180.37-20170519133622

Khamûl is mentioned in "Unfinished Tales,"  where he is described as the most ready to perceive the presence of the Ring, save for the Black Captain (the Witch King), but also the one whose power was the most confused and diminished by daylight. So, yes, he is canon.