Mordred is one of the principal antagonists in Tides of Annihilation. She is a powerful demi-god allied with the forces of Avalon and one of the most prominent boss encounters shown in pre-release footage. Her boss fight takes place in an inverted library where reality bends and shifts during combat.
Voice actor
Mordred is voiced by Aliona Baranova, known for her roles in Baldur's Gate 3. Baranova is the real-life partner of Jennifer English, who voices Gwendolyn. The casting of a real couple as protagonist and antagonist adds an extra dimension to their confrontational scenes. In gameplay footage, Mordred and Gwendolyn exchange witty dialogue during their fight.
Boss fight
The Mordred encounter was showcased in the 11-minute extended gameplay video released after the State of Play reveal. The fight takes place in an inverted library where bookshelves hang from the ceiling and the architecture folds in on itself. This dimension-shifting setting draws inspiration from films like Inception and Doctor Strange, with the environment actively changing during combat.
During the fight, Mordred demonstrates powerful attacks and mobility. She engages in conversation with Gwendolyn throughout, making the encounter feel personal rather than purely mechanical. The fight tests the player's command of the Dual Frontline Battle System and their ability to adapt to a changing arena.
Arthurian origins
In traditional Arthurian legend, Mordred is King Arthur's illegitimate son (or nephew, depending on the source) whose rebellion leads to the Battle of Camlann and Arthur's death. Mordred is one of the most recognizable antagonists in the mythology. Tides of Annihilation appears to reinterpret Mordred as a female character, which aligns with the game's broader approach of reimagining Arthurian figures in new ways.