Aubrey Plaza is set to make her debut in the Marvel Cinematic Universe as it’s been reported that she's set to join Kathryn Hahn in the upcoming Agatha: Coven of Chaos series for Disney+.

The series is a spinoff of the Marvel show "WandaVision", with Hahn set to reprise the role of Agatha Harkness. Exact plot details, including the character Plaza would play in the show, are being kept under wraps.

"Agatha: Coven of Chaos" was initially introduced in reporting as "House of Harkness" before its name change was revealed at Comic-Con this summer. Along with Hahn and Plaza, the series is reportedly set to include "Heartstopper" breakout star Joe Locke as well as Emma Caulfield Ford, who appeared in "WandaVision" as Sarah Proctor, AKA Dottie. That last bit of casting is the only hint that "Agatha: Coven of Chaos" may continue the "WandaVision" story in some capacity, as Sarah was revealed to be a bystander who ended up trapped in Wanda Maximoff's (Elizabeth Olsen) superpowered thrall.

There is currently no release date for Agatha: Coven of Chaos.

Source: Press Release