Agatha All Along is giving us some answers, while raising new questions, in episode 4 this week, though it does seem to be slowly spelling something out. That would be the true identity of Aubrey Plaza’s Rio Vidal, a Green Witch. Or rather, the Green Witch, as she says.

Agatha All Along Episode 4 hints at an old connection between Rio Vidal and Agatha Harkness. Here's everything you need to know about it.

The first two episodes of MCU’s recently-released Agatha All Along have successfully paved the way for the titular purple witch’s upcoming adventures. After breaking out of Wanda’s binding spell, Agatha (Kathryn Hahn) realizes that her powers have been relinquished.

Not too much is known about Rio Vidal yet. She was introduced in the first episode of Agatha All Along, posing as a detective in the spell that Wanda had put Agatha under. From the start, she and Agatha have a bad history.

In the new Marvel series Agatha All Along, fan-favorite witch Agatha Harkness is free from the hex Wanda Maximoff, aka Scarlet Witch, placed on her, but she finds herself without powers. And with many people seeking revenge against Agatha,

Recent rumors have suggested that Agatha All Along‘s Rio Vidal is actually a different character in hiding. While some fans believe Aubrey Plaza’s character could be Blackheart, others have conjured outlandish theories suggesting she might even be Lady Death.

Aubrey Plaza made her MCU debut in Agatha All Along as Green Witch Rio Vidal, but her connection to Agatha Harkness and history remains a mystery.