WandaVision‘s mystery practically begged its viewers to speculate about what was actually going on with the series. With each new episode, new details could be interpreted as hinting at one villain or another. Mephisto quickly rose as a fan favorite guess given the demon’s history with Scarlet Witch and Vision in the comics. However, while the many clues pointing to Agnes actually being the witch Agatha Harkness turned out to be true, all those Mephisto theories were left in the dust come WandaVision‘s big finale.
With the words of WandaVision’s showrunner Jac Schaeffer, it’s now been confirmed all the Mephisto theories that flooded the web did not have foundations in the show. Instead, WandaVision starred something worse than the big bad guy: grief. In a time when the world is in the vice of a pandemic, with people losing so much, following Wanda’s journey fighting her demons can be a more cathartic experience for the audience than fighting some big demon.
Originally from https://screenrant.com/wandavision-show-mephisto-villain-jac-schaeffer-no-plan/