WandaVision: 10 Burning Questions After Episodes 1 & 2
4. How Big A Role Will Agnes Play?
Much like 'Geraldine', if it weren't for the additional information fans have been given over the last few months, Agnes would so far seem like little more than Wanda and Vision's nosy neighbour. Though she is yet do anything particularly suspicious, it is widely believed that her character will ultimately be so much more.
She has been shown in the trailers to be aware that Vision is supposed to be dead, and thanks to her Halloween costume and the jewel around her neck, the theory is that Kathryn Hahn's character will be the MCU's iteration of Agatha Harkness.
As a powerful witch in the source material, Agatha has crossed paths with Wanda Maximoff before, as both an ally and as an antagonist. She helped the Scarlet Witch hone her powers, but also wiped her memory of her own children, leaving the nature of her relationship with Wanda on Disney+ anyone's guess.
Is she actually the one doing this to Wanda? If she is in fact Agatha Harkness then she would potentially have the ability to overpower Vision's wife. Alternatively, she could be in Westview against her will, or could even be there trying to help. At this point, her ultimate role in the series could be anything.