Scáthach

Scathach, the Witch of the Woods, is the primary antagonist of American Horror Story: Roanoke. A powerful witch serving an ancient, evil religion predating Christianity, Scathach's corrupting influence is directly responsible for several colonial incidents, most notably the disappearance of the Roanoke colony.

In the re-enactment scenes of My Roanoke Nightmare, she is portrayed by Lady Gaga, who also portrayed the Countess Elizabeth Johnsone.