The Mouth of Sauron is a mysterious figure in The Lord of the Rings, appearing grotesquely outside the Black Gates in part three of the novel, The Return of the King. Peter Jackson cut the Mouth of Sauron from The Lord of the Rings: The Return of the King movie but added him to the extended edition, confirming his importance to the narrative. High fantasy pioneer J.R.R. Tolkien defined many races in LotR, from Men to Wizards and Orcs. But the Mouth of Sauron of Peter Jackson's movie didn't seem like any of them.

Complicating matters somewhat, the Mouth of Sauron scene in The Return of the King extended edition changed the book's story substantially, necessitating differentiating the two to get to the heart of the matter. Although it distorted canon, Jackson's Lord of the Rings trilogy did a good job of cementing the horrifying Mouth of Sauron in the minds of millions,...