Sauron never uses his shape-shifting power in The Lord of the Rings, despite it being one of his best abilities, and there’s a good reason for this.

And with a new target in his sights, Sauron transforms again in The Lord of the Rings: The Rings of Power, this time becoming his “fair form,” Annatar. But who is Annatar exactly on The Rings ...

where Isildur had cut the One Ring from him. This secrecy has led many to question just what Sauron's true form is.