‘VisionQuest’ Showrunner Settles the Doctor Doom Voice Debate After That Shock Post-Credits Scene
Marvel loves hiding its biggest surprises behind the end credits, and ‘VisionQuest‘ took that habit to another level. The Disney+ finale, ‘Forever’, arrived on 10 November with a secret stinger that never made it into the screeners sent to critics. Before long, fans were dissecting every detail of Robert Downey Jr.’s Doctor Doom voice.
The finale actually carries 2 credits scenes. The first returns to Horton’s mansion, where Ultron looks out over the grounds of his new home and is shown to have Jocasta’s hard drive, hinting at a possible return. The second is the one that broke the internet.
That scene rewinds to the destruction at the end of ‘Doctor Strange in the Multiverse of Madness’, with Elizabeth Olsen’s Wanda Maximoff seemingly lifeless under the rubble. Doom lifts the debris and says, “Scarlet Witch, awaken. Your power will be mine.” Wanda’s eyes snap open, and the screen cuts to black.
🚨Elizabeth Olsen has OFFICIALLY returned as Wanda Maximoff in the post-credit scene of #VisionQuest finale! THE SCARLET WITCH IS ALIVE! https://t.co/tvQtNorXEo
— Scarlet Witch News (@scarletwnews) November 11, 2026
Not everyone was convinced the voice belonged to Downey, though. Showrunner Terry Matalas cleared it up quickly, telling Gold Derby, “That’s Downey’s voice.” That rules out a stand-in or a hint at another variant of the character.
Matalas wrote and directed ‘Forever’, but he added that he wasn’t personally behind the camera for that sequence. Why Doom sounded different to some viewers is still unclear. For now, the answer is simply that it’s Downey.
Downey’s take on the villain was a hot topic well before the finale. The first ‘Avengers: Doomsday’ trailer, released in July, offered the first snippet of the performance, complete with a heavy Latverian accent. Reactions split, with some fans comparing it to a bad Dracula impression.
Marvel has also kept Downey’s face hidden behind the metal mask in that footage, so his voice has been the main way audiences have met Doom. His earlier appearance in ‘The Fantastic Four: First Steps’ showed him with his back turned and without a single line of dialogue. That makes the ‘VisionQuest’ stinger a rare chance to hear him speak inside an actual MCU story.
The studio has been building toward his arrival in unusual ways. The ‘Avengers: Endgame Encore’ re-release packs 4 new scenes and credits stings, including shots of Downey’s Victor von Doom forging his mask in distinctly Tony Starkian fashion.
The scene raises more questions than it answers. Nothing in the footage establishes whether Doom intends to control Wanda, siphon her magic, or pursue something else entirely. It also invites comparisons with the Latverian witches tease from San Diego Comic-Con.
Wanda’s survival is the bigger story, since Olsen’s Scarlet Witch hasn’t appeared in the MCU since ‘Doctor Strange in the Multiverse of Madness’. Matalas had said ahead of release that she wouldn’t appear in the series itself, which made the surprise land even harder. He has now confirmed that the post-credits scene flows directly into ‘Avengers: Doomsday’, which arrives on December 18.
The first trailer for #VisionQuest, premiering October 14 on Disney+. https://t.co/jIcsJ2Iarl
— Rotten Tomatoes 🍅 (@RottenTomatoes) August 15, 2026
Doom also appears to be collecting pieces ahead of the film. ‘Avengers: Endgame Encore’ established that he has captured the Hulk, while Spider-Man was seemingly teleported off Earth-616 in the post-credits scene of ‘Spider-Man: Brand New Day’.
There’s an Ultron angle too. Matalas stopped short of calling ‘Forever’ a true series wrap, and it’s easy to imagine Ultron resurfacing in ‘Doomsday’ or ‘Avengers: Secret Wars’ to meet a Doom who shares a face with Ultron’s creator, Tony Stark.
He used to be different. Avengers: Doomsday arrives in theaters everywhere December 18. Get your tickets now: https://t.co/J5PUbxvAkc https://t.co/OUutSMZneq
— Marvel Studios (@MarvelStudios) August 15, 2026
Doom wasn’t the only Downey cameo Matalas considered. He has said he explored a voice cameo from Downey as a younger, pre-‘Iron Man’ Tony Stark in a flashback involving Mary McDonnell’s Katerina Wells. He ultimately weighed the show’s television budget and what the story needed, then backed away from the idea.
Fan reception to the finale has been warm, and some viewers are already calling the stinger the best MCU post-credits scene ever. With Downey’s involvement confirmed, the focus now shifts to what Doom has planned for Wanda.
Do you think Robert Downey Jr.'s Doctor Doom voice works for the character, and what do you think Doom wants from Scarlet Witch?
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