‘VisionQuest’ Episode 4 Ending Explained: Who Is Jocasta?

Episodes 3 and 4 of *VisionQuest* introduce Jocasta, a synthezoid with a new identity and motive compared with her Marvel Comics counterpart. Revealed as Josephine Carrington, she is the Butcherbird, a killer targeting scientists connected to research that helped create Tony Stark’s artificial intelligences.

Jocasta needs biological keys from her former colleagues to unlock something she has not yet disclosed. She defeats Vision, who survives by letting Ultron take control; Ultron tricks her into killing her intended target, while their encounter hints at a dangerous attraction. In the comics, Jocasta was created by Ultron from Janet Van Dyne’s mind, but turned against him and joined the Avengers.