Tolkien provided few specifics about Treebeard's age, but he is estimated to be at least 11,000 years old, having tended to the trees before the Elves woke up in Middle-earth.
In the books, Gandalf even suggests that Treebeard is the oldest living creature in all of Middle-earth. If Treebeard dates back to the First Age, this would make him as much as 25,000 years old by the events of The Two Towers.
Gandalf, because he is a maia - Olórin. Legolas was merely an Elf, son of Thranduil, and most likely born in the beginning of the Third Age, making him some 3,000 years old. Gandalf as Olórin was literally older than the world.
Treebeard, also known as Fangorn, was the oldest of the Ents, a tree-like being who was a sort of "shepherd of trees". Very tall and stiff-limbed, with bark-like skin and leafy hair, like most Ents, Treebeard took a long time to make up his mind.
When did Gandalf know Bilbo had The One Ring? | Tolkien Explained
Who is older, Sauron or Treebeard?
Infact, there are many characters who are as old as Sauron like Lady Galdriel, Saruman, Balrog. The order oldest to youngest goes Treebeard, Sauron, Shelob, Gandalf. The ents were created shortly after the dwarves, which were created before the elves.
In fact, Treebeard may have been a first-generation Ent because Gandalf called him "the eldest and chief of the Ents." Later, Gandalf also told Aragorn, Legolas and Gimli that Treebeard was the "oldest living thing that still walks beneath the Sun.” So it's very clear that Treebeard is older than any Elf, Man, Dwarf or ...
Galadriel was certainly the most powerful elf remaining in Middle-Earth at the time of the trilogy, but not the oldest; that honor goes to Círdan, who was also one of the last of the Elves to leave Middle-Earth for Valinor, sometime after the passing of King Elessar (Aragorn) early in the Fourth Age .
When you realize that Galadriel is about 8.000 years old and Gandalf at least 55.000 years, and has looked like an old wizard for the last 2.000 of them. It really changes the scene, its a joke between old friends.
Galadriel leaves Middle-earth in TA (Third Age) 3021 when she is around 8,000 years old. Given that the events of The Rings of Power take place before the Third Age, she's around 5,000 years old in the show. This is also corroborated by her birth date in Valinor of 1362 in the "Years of the Trees".
Legolas was portrayed by Orlando Bloom. In the "official movie guide" for The Lord of the Rings, a birthdate for Legolas is set to 87 of the Third Age. This would make him 2931 years old at the time of the War of the Ring.
Gimli is a character in The Lord of the Rings. He is portrayed by John Rhys Davies, who also voices Treebeard the Ent. He first appears in the first film of the series and is first mentioned in the second film of The Hobbit. He is based on the character of the same name from Tolkien's Legendarium.
While Treebeard is definitely older than the amount of time that Gandalf has spent in Arda (around 2000 years), Gandalf himself as an entity is older than Treebeard. Gandalf was one of the Maiar, the spirits that helped the Valar shape the world and who lived in the Undying Lands.
He is, after all, from a younger generation than Galadriel herself, she being his second cousin once removed, and while one can play around with his unknown birthdate (he might conceivably be older than Galadriel if you push Curufin back in time and Finarfin forward), it is a stretch to make him substantially older.
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.
As powerful as Galadriel, Fëanor, and many other Elves worthy of a mention are, the title of most powerful Elf goes to Fingolfin, the High King of the Ñoldor. Fingolfin achieved many impressive feats, but one stands out and places him as the most powerful of them all: his legendary duel with Morgoth.
It is later mentioned that Tauriel is a talented warrior and was therefore made leader of the Mirkwood border guards. Legolas, the son of Mirkwood's Elven king Thranduil, is indicated to be attracted to her, but as she is a lowly Silvan Elf, she does not believe herself worthy of him.
And when they later meet at Rivendell, the two clearly have a long history together stretching long before joining the Fellowship. This isn't surprising, as, despite their looks, Aragorn is 87 during this era, and Arwen is over 2700 years old, so they've had more than enough time to know each other.
She had three older brothers: Finrod Felagund, Angrod, and Aegnor. In The Silmarillion, Tolkien describes Galadriel as "the mightiest and fairest of all the Elves that remained in Middle-earth." She is especially tall, standing at an impressive height of six foot four.
Perhaps the most far-fetched theory yet states that Tom is not really the jolly old being we see, but in fact, something eviler, and much more powerful, than Sauron and many other characters.
