They had none of the old Troll vulnerabilities: they were very intelligent and able to move under the sun unlike their other counterparts. For this reason they were seen by some to be orcs like the Uruk-hai, but they were definitely of Troll stock. They were improved Trolls, much like the Uruk-hai were improved orcs. The Olog-hai however may have actually been corrupted Trolls and marred to the Dark Powers like the Balrogs, Orcs, and Werewolves were.
They seldom spoke and never in any language other than Sauron's Black Speech. After the War of the Ring, all of the Olog-hai were killed.
In the bookEdit
The Olog-hai are not mentioned by name in The Lord of the Rings; the term appears only in the Appendices. However, they are described as being in the Battle of the Morannon at the Black Gate, where Pippin saves his friend Beregond from one. It is possible that some Olog-hai were also present at the Battle of the Pelennor Fields.The Olog-hai are described as being taller than a man, and covered in spiky scales, carrying war hammers, large swords or spiked maces, and bucklers, and having claws and, on occasion, tusks. It is mentioned that Olog-hai might be giant orcs or half-troll half-orcs.
- "You are soldiers of Gondor! Whatever comes through that gate, you will stand your ground!"
- —Gandalf, The White Rider, shortly before several Olog-hai blast through the main gate of Minas Tirith
Olog-hai were shown as the shock troops in the motion picture The Lord of the Rings: The Return of the King, sporting armour and war hammers alluded to in the appendices. They were used in the Siege of Gondor as primary shock troops after the gates of Minas Tirith were broken, and an Olog-hai actually duels Aragorn at the Black Gate. They differ from the other Trolls depicted in the movies in that they have more forward-facing eyes as well as hair on their bodies, suggesting that they are a more advanced form of Troll. They are usually grey to black in color. They have twenty-four teeth and have an average height of about nine to eleven feet, compared to regular trolls who were eight to ten feet. Their eyes are also bright orange, showing their evil connection with Sauron. Attack Olog-hai wear breastplates, vambraces pauldrons, and helmets, and carry maces or huge swords. Despite their size they were exceptionally fast and were skilled enough to parry and engage in swordplay, as was the case with one that nearly killed Aragorn outside the Black Gate. However once the One Ring was destroyed they disappeared from middle earth along with the orcs and Uruk-hai.