The show boasts 22 series regulars and the action takes place across six or seven lands—just in the first season alone. But the immortal and powerful elf Galadriel is perhaps the closest we come to a hero in the series.
Though the Dúnedain were blessed with long life and slow aging, they were still mortal. On the other hand, Elves are immortal beings that never succumb to old age. They can even recover from wounds that would be fatal to Man.
Thus, Galadriel's dark form in Jackson's The Lord of the Rings personified what would have occurred had the Lady of Lothlorien given in to temptation and taken the One Ring for herself. She would have succumbed to evil because the Ring was indomitable, even with her power.
Though neither is someone you'd wish to annoy, Galadriel is generally considered more powerful than Elrond in Lord of the Rings. Not only is she older than her Rivendell counterpart, but Galadriel witnessed the light from Valinor's Two Trees, giving her a mystic quality.
In the official timeline, Galadriel was born in 1362 during the Years of Trees, which lasted until 1500. In the First Age, the War of Wrath took place between 545-587, killing Galadriel's brother. By the end of the war, this would then make Galadriel 725 years old.
All of the Elves that fans meet in the Lord of the Rings series are powerful and wise people. However, Galadriel may be the most powerful and wise Elf in Middle Earth, at least in the Third Age.
In The Lord of the Rings, it is said that had Galadriel chosen to use her powers for evil instead of good, she would have been even more destructive and terrifying than Sauron himself. Galadriel was the greatest and most powerful of all Elves in Middle Earth in the Third Age.
God is the most powerful entity in Tolkien's Lord of the Rings universe. The Elvish name for him is actually Eru Ilúvatar, meaning “the one, father of all.” So the question becomes: Who is the second-most powerful being? Originally, it was Melkor, “he who arises in might,” the most powerful of the Ainur (or angels).
Vilya, the Ring of Air
It is regarded as the most powerful of the three rings, although its powers are not specified. As it comes into Elrond's possession, though, it greatly enhances his abilities as a healer. Like Narya, Vilya was also sent by Celebrimbor to Gil-galad before the sacking of Eregion by Sauron.
So when she allows this incredible rarity to Gimli, she essentially gives him the three hairs that Feanor demanded of her, because she has looked into his soul and found that he has a good heart and that he desires them for nothing more than to treasure the beautiful days he spent in her lands.
Legolas's Family Tree
Yet, since Tolkien does give family trees for other important Elves in the book, such as Galadriel and Elrond, it's clear that Galadriel is not Legolas's mother. (Besides, she is one of the Noldor, not a Silvan or Sindar Elf.)
And after their marriage, both Aragorn and Arwen are mortal. Arwen, therefore, could not set foot in the Undying Lands without special permission. And she wouldn't be likely to go after it in the end. So unfortunately, she would not go there, unlike Legolas, after Aragorn's passing.
Arwen reciprocated Aragorn's love, and on the mound of Cerin Amroth they committed themselves to marrying each other. In making that choice, Arwen gave up the Elvish immortality available to her as a daughter of Elrond, and agreed to remain in Middle-earth instead of travelling to the Undying Lands.
However, he does not possess the ability to live forever, and he cannot choose to be mortal or immortal like Arwen, the half-Elf he loves and eventually claims as his wife. Because Aragorn is mortal and Arwen chose to remain in Gondor and become mortal, their son, Eldarion, is mortal as well, despite his Elven lineage.
With the destruction of Sauron's One Ring in the last years of the Third Age, the Elven-rings also lost their power, including the Three. The Keepers of those Three Rings left Middle-earth together on the White Ship: Galadriel, Elrond and Gandalf, the Keepers of the Three Rings.
The Three Rings of the Elves were forged by Celebrimbor alone, and were never touched by Sauron.
Arwen is described as the “most beautiful of the last generation of High Elves in Middle-earth,” and can summon powerful water spirits. She goes out of her way to always help those in need as well.
Saruman The White
Saruman is a complex wizard who could be considered one of the weakest characters since he gave up serving the side of good, and as Aragorn said, ceased to be "as great as his fame made him."
Sauron (pronounced /ˈsaʊrɒn/) is the title character and the primary antagonist, through the forging of the One Ring, of J. R. R. Tolkien's The Lord of the Rings, where he rules the land of Mordor and has the ambition of ruling the whole of Middle-earth.
Except for Tom Bombadil, nobody seemed to be immune to the corrupting effects of the One Ring, even powerful beings like Gandalf and Galadriel, who refused to wield it out of the knowledge that they would become like Sauron himself.
There, she falls in love with Aragorn. And after the two of them are wed and the Fourth Age of Middle-earth begins with a promise of renewal, Elrond and Galadriel leave together for the Undying Lands, Galadriel's ban finally lifted.
She was a royal Elf of both the Noldor and the Teleri, being a grandchild of both King Finwë and King Olwë.
She is described as "the mightiest and fairest of all the Elves that remained in Middle-earth", and the "greatest of Elven women". Throughout the Third Age it was unknown who wielded the Three Rings, but during the War of the Ring, Galadriel revealed to Frodo Baggins that she was the bearer of Nenya.