Marvel Developing a WANDAVISION Spinoff Series for Agatha Harkness for Disney+ - Kathryn Hahn is set to reprise her role Marvel Studios is developing a WandaVision spinoff series for Disney+ that will center on the villainous witch Agatha Harkness, and Kathryn Hahn is set to reprise her role. WandaVision head writer Jac Schaeffer is developing the... Continue Reading →