In Destiny 2, the Witch Queen named in the 2022 expansion's title is Savathûn. She is one of the most important members of the Hive and the central antagonist of The Witch Queen.
Savathûn is the sister of Oryx, the Taken King, and Xivu Arath, the Hive god of war. Unlike Oryx's emphasis on conquest and Xivu Arath's devotion to battle, Savathûn is associated with deception, secrets, and elaborate schemes. Her identity had already shaped Destiny's story before she became the expansion's visible focus.
The campaign takes place largely in Savathûn's Throne World, where Guardians investigate how she and her Lucent Brood gained access to the Light. Her Hive soldiers can wield familiar Guardian-like powers and are revived by Ghosts, making them a distinctive threat.
Mara Sov, Eris Morn, and Xivu Arath are all significant Destiny characters, but none is the title's Witch Queen. Xivu Arath is Savathûn's sibling, while Mara and Eris are allied with the Guardians.