Agatha Release Date, Cast & Plot

Agatha Release Date, Cast, Plot & Disney+ Updates — Everything We Know

By Open Friend • September 22, 2026

Agatha Release Date

Marvel’s Agatha All Along (formerly Agatha: Coven of Chaos, Agatha: House of Harkness) premieres on Disney+ US on September 18, 2024. The WandaVision spin-off follows Kathryn Hahn’s fan-favorite witch Agatha Harkness as she embarks on a new magical journey.

Cast Updates

Kathryn Hahn returning as Agatha Harkness
Joe Locke as Teen / Billy Kaplan (Wiccan)
Aubrey Plaza as Rio Vidal / Green Witch
Sasheer Zamata as Jennifer Kale
Ali Ahn as Alice Wu-Gulliver
Maria Dizzia as Mrs. Hart
Patti LuPone as Lilia Calderu
Debra Jo Rupp returning as Mrs. Hart / Sharon Davis
Emma Caulfield Ford returning as Sarah Proctor / Dottie
Paul Adelstein as Jeff
Miles Gutierrez-Riley as Eddie
Okwui Okpokwasili as Vertigo

Plot: What We Know

Agatha All Along picks up after WandaVision — Agatha Harkness (Hahn) is trapped in Westview under Wanda’s spell, stripped of her powers and identity as “Agnes.” A mysterious goth teen (Joe Locke) helps her break free, setting her on the Witches’ Road — a magical trial where witches face challenges to regain or enhance their powers.

The series assembles a coven of disparate witches (Plaza, Zamata, Ahn, LuPone) each with their own motives. Aubrey Plaza’s Rio Vidal is a “green witch” with a complicated history with Agatha. The show leans into horror-comedy tones, exploring the Marvel “Witches’ Road” mythology from the comics.

Jac Schaeffer (WandaVision) writes and directs. The series is 9 episodes, releasing weekly on Disney+ US starting September 18, 2024. It directly connects to WandaVision and sets up Vision Quest (2026).