WandaVision creator Jac Schaeffer has recalled the moment she and Agatha All Along star Kathryn Hahn stumbled on "the greatest idea" on set of the Marvel spin-off: the titular witch's nude scene in episode 1.

Who’s been pulling every evil string? Why that’s Agatha Harkness ( Kathryn Hahn ), the centuries-old baddie who lost her magic—and her sense of self—at the end of Marvel’s 2021 series WandaVision after Elizabeth Olsen ’s Scarlet Witch trapped her in a distorted spell.

This story does not contain major spoilers for Agatha All Along.] Kathryn Hahn's introduction into the Marvel Cinematic Universe took the form of an intrusive 1950s neighbor to Wanda Maximoff and Vision on WandaVision.