High Priest Thel'danis is the caretaker of the tomb.
Following the fall of Lordaeron the Knights of the Silver Hand led by Uther the Lightbringer, Sage Truthbearer, and Ballador the Bright took control of Andorhal and kept the Scourge at bay until the coming of the now death knight Arthas. Arthas (who had become the greatest of the Lich King's death knights) came to find a magical vessel to carry the remains of Kel'Thuzad to the Sunwell in Quel'Thalas in order to resurrect him. Arthas boldly lead an army of undead scourge killed Sage Truthbearer, Ballador the Bright, Uther the Lightbringer, and their forces. With Uther dead Arthas took the urn of King Terenas for himself.
Uther's body was retrieved by his remaining soldiers, and buried in a great tomb built for him to the south of the ruins of Andorhal, vigilantly guarded by defenders of the Alliance. The headstone shows him in a heroic pose, a tome of Light in one hand, his warhammer in the other. The marker stone before it, written in the Common tongue, reads:
Here lies Uther the Lightbringer
First Paladin - Founder of the Order of the Silver Hand.
Uther lived and died to defend the Kingdom of Lordaeron. Though he was betrayed by his most beloved student, we believe that his spirit lives on. He continues to watch over us, even as the shadows close in around our ruined land. His light is the light of all humanity - and so long as we honor his example, it shall never fade.
The Burning Crusade
This section concerns content related to The Burning Crusade.
Some time after the blood elves joined the Horde, Mehlar Dawnblade, a former student of Uther, wanted to defile Uther's Tomb for training Prince Arthas. However the Ghost of Uther Lightbringer kept the tomb from being defiled. A Draenei named Anchorite Truuen wants to pay tribute to Uther by recovering the Mark of the Lightbringer. An item that was lost when Uther was killed and was recovered by the Scarlet Crusade. After recovering the mark and taking it to tomb the Ghost of Uther Lightbringer tells the player to keep the mark to inspire others.
This section concerns content related to Cataclysm.
A beautiful lush pathway now leads to the tomb, lined with tall hedges. And if you kneel before the statue, it gives you a buff called Uther's Blessing, which is also available to Alliance characters after doing the quest of the same name.
This section concerns content related to Legion.
Since Lord Fordring's apparent passing, the Light became disturbed and the spirits of the buried near the Tomb became restless. Its High Priest summoned a protective barrier over the tomb. Thel'danis and Mehlar Dawnblade were then aided by the paladins of the Silver Hand.
In the RPG
The only place of any sanity in this cursed land, Uther's Tomb is a simple monument to the fallen hero. A statue of Uther stands on a marble pedestal and the Holy Light shines on this place. Thel'danis, a high elf priest, tends the tomb and the lonely garden surrounding it. He helps those in need and runs an underground railroad to ferry refugees to safety in the south.
What Horde players read.
The tomb of Uther the Lightbringer before Battle for Azeroth.
Outside Uther's Tomb, pre-Cataclysm.
Path leading to Uther's Tomb, pre-Cataclysm.