Agatha Harkness

Played by Kathryn Hahn

Agatha Harkness is a centuries-old witch, once a member of a coven of Salem witches, who was cast out and stripped of her powers for practicing dark and forbidden magic. She spent decades hiding in plain sight before attempting to steal Wanda Maximoff's chaos magic in Westview, and later led a coven of practitioners down the perilous Witches' Road in search of greater power. Read more →

First turns up in WandaVision.