There are only a few days left until the premiere of Agatha all the timeand this latest teaser for the Disney+ WandaVision spin-off focuses on one of the most mysterious additions to the MCU in a long time, Rio Vidal (Aubrey Plaza).

All we know about this character is that she is a powerful Green Witch and an ex of Agatha Harkness – but maybe there is also a much more about her.

Possible spoiler consequences.

Since Rio Vidal isn’t a character from the comics, there’s been a lot of speculation that Plaza will actually be playing a slightly more familiar character (no pun intended). We’ve heard that this is indeed the case, and various names are circulating in the rumor mill, including Enchantress, Morgan le Fay, a gender-swapped Nicholas Scratch, Lady Death, and even Mephisto himself.

Watch “Rio” in action in the promo video at the link below and let us know what you think.

The new series focuses on Kathryn Hahn’s character Agatha Harkness from the acclaimed Marvel Studios series WandaVisionas she embarks on a dangerous, mysterious adventure full of ups and downs. Showrunner Jac Schaeffer, the creative force behind WandaVision, is directing the pilot episode.

“In Agatha All Along, the infamous Agatha Harkness is left devastated and powerless after a suspicious goth teen helps her break free from a twisted spell. Her interest is piqued when he begs her to lead him down the legendary Witches’ Road, a magical challenge of trials that, if survived, rewards a witch with what she has been missing. Together, Agatha and this mysterious teen assemble a desperate coven and set off down the road…”

In addition to Kathryn Hahn, Agatha All Along stars Joe Locke, Sasheer Zamata, Ali Ahn, Maria Dizzia, Paul Adelstein, Miles Gutierrez-Riley, Okwui Okpokwasili, with Debra Jo Rupp, Patti LuPone and Aubrey Plaza. Executive producers are Kevin Feige, Louis D’Esposito, Brad Winderbaum, Mary Livanos and Jac Schaeffer. The series is directed by Jac Schaeffer, Rachel Goldberg and Gandja Montiero.

Marvel Television Agatha all the time Premiering September 18 at 6pm PT/9pm ET, with the first two episodes available exclusively on Disney+.