We see the Palantíri a few times throughout The Lord of the Rings, but how many are there, and what are their whereabouts?

One of the biggest mysteries around them is what some may call the favoritism shown to Gandalf (Sir Ian McKellen) compared to ...

Some Lord of the Rings characters had key moments but vanished quickly, like The Mouth of Sauron, Háma, Madril, Grimbold, and Irolas.

So long as the One Ring existed, Sauron's power would endure, making him the ultimate threat in Lord of the Rings.