Sorcery: Agatha Harkness is a powerful sorceress capable of manipulating mystical energy for a variety of effects, such as casting spells. Her mystic power manifests as purple energy.
Memory AccessPower Stealing
Hahn previously voiced Doc Ock in the film Spider-Man: Into the Spider-Verse.
Agatha says her wedding anniversary is on June 2nd, which could be a reference to the date in real-world history when the first person executed for witchcraft was convicted and sentenced to death during the Salem Witch Trials, which is a significant part of Agatha Harkness' backstory in the comics. This version of Agatha is also a Salem Witch and was put on trial but her coven, but it's unclear if she was part of the actual Salem Witch Trials.
Agatha alludes to a husband named Ralph throughout the episodes of WandaVision, but he isn't actually revealed until the final episode and he's never seen with her. This is an homage to a classic sitcom trope where the neighbor would make allusions to a spouse that never appears on the show.
The exterior of Ralph's house (which Agatha takes over) is the same as the house used by the main witch character in the 1960s sitcom Bewitched.
BASE OF OPERATIONS
Westview, New Jersey
PARENTS AND RELATIVES
Evanora Harkness (mother, deceased)