The subject of this article originates from non-canonical sources. To find out about what is considered "canon" see LOTR:Canon.
The Dol Guldur Mouth was an unidentified man who served as one of Sauron's most trusted servants.
One of the Black Númenóreans he was an unnamed man who served as the messenger of the Necromancer. He rode throughout Rhovanion, delivering messages from the dark tower in Mirkwood. He had become a master of sorcery in his long years as the Lieutenant of Dol Guldur. He is later to become known as the Mouth of Sauron who talks to Aragorn at the Black Gate.