Morgan Le Fay

Morgan is lecherous, cruel, and selfish, a true model of vice. A woman who cannot live without cursing others. She believes that Britain rightfully belongs to her because she wields the primeval black curse. Morgan greatly hates her sister and possesses a great obsession for Mordred to take the throne from her.

She changed greatly throughout her life from a "fine lady" to a "frightening thing" according to Kay, and he describes it as if she had three women inside of her. Having started with the "innocence of a fairy", she became "as magnificent as a warrior maiden", and "then suddenly possessed the brutality of a witch." Kay believes she may have had similar burdening circumstances as Artoria due to their parentage.

One of these three personalities is known as Vivian. Morgan developed these three personalities as a way to reconcile the three roles enforced on her by her supernatural birth: Morgan the human, Artoria's caring sister; Vivian the fairy, the Lady of the Lake; and Morgan le Fay (or Fata Morgana),[1] the embodiment of Britain and holder of its Mystery.

Artoria considers Morgan not only her sister, but also like a mother to her and a reflection of herself. Artoria also says Morgan has a more kingly disposition than her, and was more loved by Britain than her.

Morgan was never able to find a place she belonged. She was born as Britain's chosen heir, but lost that role to King Arthur. For Morgan, Britain was everything, and without it, she herself was worthless. When the humans kicked her out of Britain, Morgan herself lost her worth.