Barghest is a major Fairy Knight in Fate/Grand Order, serving as one of the antagonistic rulers in the Lostbelt Britain storyline. She appears as a powerful, tragic knightly figure associated with the fae of Cornwall and the Wild Hunt. Proud, loyal, and fiercely protective, she can also be cruel and overwhelming in battle. In the story, she plays a significant role as one of the key enforcers of the Fairy Kingdom, while also revealing a more conflicted and emotional side beneath her intimidating exterior.