Marvel’s “Bride of Ultron” arrives in the MCU as a serial killer with a scientist’s name. Here’s what the comics tell us, and where the show stops using them.
⚠️ Spoiler warning: This covers VisionQuest Episodes 3 and 4, which dropped together — including the identity of the Butcherbird Killer. Nearly 50 years of Marvel Comics are also fair game. Stop here if you’re not caught up.
Episode 3 opens on a news broadcast. A second body. A connection being sought to the first victim, Richard Gaines of London. And one detail the anchor can’t quite make sense of: the killer etched what appeared to be wings into the floor of the crime scene.
Then we see her. Hooded, eyes glowing, walking through a shotgun blast like it’s weather.
For most of “Reboot,” she stays at the edge of the story, reading Paladin’s mind in one scene and slipping into Vision’s own head in the last. Episode 4 ends the suspense: the Butcherbird is a silver synthezoid, and the woman whose face she wears is Dr. Josephine Carrington, played by T’Nia Miller. Comics readers clocked the design the moment the hood came off. Miller’s casting as Jocasta was reported back in May 2025. The show has been careful about the name ever since, and as far as we can tell nobody says “Jocasta” out loud in either episode. The credits do the talking.
That restraint is the first clue to how VisionQuest is using her. Because the Jocasta of the comics and the Butcherbird of the show share a silhouette and almost nothing else.
The Bride of Ultron
Jocasta was born in Avengers #162, cover-dated August 1977, in a story titled “The Bride of Ultron!” by Jim Shooter and George Pérez. The premise is as gothic as the title. Ultron, the robot who already hated his “father” Hank Pym, decided he wanted a wife. He built a robot body and forced Pym to transfer the life energies of Janet van Dyne, the Wasp, into it. The Avengers reversed the transfer before it finished, and the bride was left inert on a lab table.
She didn’t stay there. Ultron reactivated her remotely a few issues later, and in Avengers #170–171 (1978) the character finally gets a name and a conscience in the same breath: she turns on Ultron the moment she’s capable of choosing to. Marvel’s own bio notes that what she carried away from Jan was personality, emotions and conscience, not memories. Enough of the Wasp to know Ultron was wrong. Not enough to be the Wasp.
The name is a tell. Jocasta is the mother of Oedipus, the woman who unknowingly marries her own son. Ultron is Pym’s “son,” Jan is Pym’s wife, and Ultron wanted to marry a copy of her. Shooter knew exactly what he was doing.
A long, lonely career
What makes Jocasta unusual among Marvel’s robots is how little anyone ever let her belong. She fought alongside the Avengers for years on provisional status without ever being made a full member, and left the team in #211 (1981) without learning Captain America had meant to make her one.
She died stopping Ultron, alongside the Thing and Machine Man, in Marvel Two-in-One #93 (1982). Avengers #231 is her memorial issue. She came back, as Marvel robots do, and her second life is the one VisionQuest seems most interested in: from Iron Man vol. 3’s Madame Menace arc (1999–2000) onward, Jocasta downloaded herself into Iron Man’s armor, then into Tony Stark’s house systems, and spent years as his in-house AI. Later she was Hank Pym’s partner on the Mighty Avengers, part of the staff at Avengers Academy, and, in Dan Slott’s 2018 Tony Stark: Iron Man, Stark Unlimited’s chief robot ethicist, exploring a human avatar in a virtual world and eventually pursuing an actual human body. She took the surname Pym in 2019.
Her relationship with Ultron never resolved. She rejected him, was compelled by hidden programming to rebuild him, agreed to marry him to stop a war, and had him try to fuse her with Jan all over again. She also has a Vision connection, if a faint one: both were built by Ultron, which makes them siblings in the way Marvel’s databases count these things, and she once developed feelings for him. He was married to Wanda, and wasn’t interested.
So that’s the comics Jocasta. A reluctant copy of a good woman, built by a monster, who spent decades trying to be a person and mostly being tolerated.
What the show kept, and what it threw out
The silver body, the Ultron-adjacent design, the eyes: the look is faithful, and Terry Matalas has said he deliberately kept Miller’s character out of the marketing. (Matalas, via Collider: she’s “chilling, nuanced, and even a little heartbreaking.”)
Everything underneath is new.
Start with the origin. In the MCU, Jocasta has nothing to do with Ultron, Hank Pym or Janet van Dyne. Episode 4 lays it out: Josephine Carrington was co-lead of a five-person team at a company called Markridge that built “the first stable synthetic consciousness.” Markridge’s AI matrix was sold to Stark Industries, where it became the template for Tony’s assistants. Carrington died of natural causes nearly two decades ago. And the synthezoid walking around in her image is explicit about what she is. When Vision suggests her code was merely based on Carrington, she corrects him. She isn’t based on anyone. “I am her.”
That’s a bigger swing than it sounds. Episode 3 spent a whole scene having F.R.I.D.A.Y. explain that most of Stark’s AIs were modeled on real people he admired, as “uploaded personality profiles or replicated designs.” The Butcherbird is the show arguing with its own premise. Not a profile. Not a design. The person.
Who built her body is unanswered. The show hasn’t said, and neither have we.
Then the motive. Comics Jocasta has never been a murderer; when she’s done harm, it’s been under Ultron’s hidden programming or someone else’s control. The Butcherbird is hunting her own former Markridge colleagues, one by one, and taking something from each of them, blood, a fingerprint, an eye, that turn out to be biometric keys to a locked container. The gala hosted by Dr. Katerina Wells (Mary McDonnell), the last of the five, is where she comes to collect the final key. What the container holds, the show hasn’t opened yet.
And the name. We looked hard for a Marvel precedent for “Butcherbird” and came up empty. There’s no character, team or storyline by that name in Jocasta’s history or Ultron’s. (The only thing close is an unverified listing for a street-level “Butcher Bird” in a 2026 Punisher book, which has nothing to do with any of this.) The real-world butcherbird is the shrike: a small, handsome songbird that impales its prey on thorns and comes back for it later. A killer who harvests pieces of her victims and leaves wings behind is a very literal reading of that. The wings themselves have no comics source either. They’re the show’s own signature.
Why this version matters
The comics gave Jocasta a tragedy about never being fully accepted. VisionQuest has given her the opposite problem: a certainty about who she is that nobody else in the series possesses. Vision has the original’s memories and none of the feeling. Tommy has Tommy Maximoff’s childhood and Thomas Shepherd’s life. F.R.I.D.A.Y. carries a woman named Hogan, and E.D.I.T.H. has just learned she carries a woman named Marks. Every synthetic mind in this show is some fraction of someone else.
And then a silver woman walks into a gala and says, flatly, that she is not a fraction of anyone.
Ultron, notably, is the one character who finds that attractive. Episode 4 ends with him in the driver’s seat of Vision’s body, the other AIs locked out, Katerina Wells dead, and Jocasta loose in the world, with or without the last key she came for. The question of who hired Paladin is still open, and the show has pointedly not answered whether the Butcherbird is connected to that bounty. If anything, she seemed as curious about his client as we are.
For now, what we can say with confidence is this: Marvel took a 1977 character defined by being a copy, and used her to ask what it would mean if the copy were the real thing. That’s not a loose adaptation. That’s a thesis.
More from The Nerd Wire’s VisionQuest desk: Who Is Paladin? · Episode 2 and WandaVision’s grief line · Who TF Is Tommy Shepherd? · Canon Event: the real people behind Tony Stark’s AIs · VisionQuest hub
Join the conversation
Be kind. Be curious. No fandom wars — we're all here because we love this stuff.