Agatha Harkness

Played by Kathryn Hahn

Agatha Harkness is a centuries-old witch who killed her own coven, her mother among them, when they tried to execute her for dark magic in Salem in 1693. She spent the centuries since draining other witches of their power, until she tried it on Wanda Maximoff in Westview and lost everything. Freed three years later, she led a new coven down the Witches' Road to get her power back, then died in Billy Maximoff's place. Read more →

First turns up in WandaVision.