Nothing here is a guess.
The standing orders this archive is kept by, Your Majesty, and the Marvel announcements every fact about the film traces back to.
Facts last checked 2026-10-25
- Order 01
Every fact about Avengers: Doomsday comes from a Marvel announcement, listed below.
- Order 02
A page says an actor plays a named character only where Marvel has named that role, or where the actor has said so publicly, labelled that way (Kathryn Newton as Cassie Lang). Otherwise it says the role is not yet named.
- Order 03
Character history comes from the Marvel Fandom wiki, the Marvel Cinematic Universe Wiki and the named films and comics. Every section lists its sources.
- Order 04
All writing is our own. Nothing is copied from the wikis.
- Order 05
No rumours, leaks, set reports or plot predictions. People who asked on stage to join the cast, but whom Marvel has not confirmed, are left out.
- Order 06
Each dossier shows three photos of the character. Images belong to their respective owners, are used here non-commercially, and any image will be removed on request. Every one is listed on the image credits page. All other visuals are made from colour, type and code.
- S-01Marvel.com, Avengers: Doomsday film page
- S-02Marvel.com, SDCC 2024: Robert Downey Jr. to Play Doom (July 2024)
- S-03Marvel.com, Avengers: Doomsday Begins Production (26 March 2025)
- S-04Marvel.com, Marvel Fans Break the Internet During Cast Announcement (March 2025)
- S-05Marvel.com, Watch the Avengers: Doomsday Teaser Trailers (13 January 2026)
- S-06Marvel.com, Avengers: Doomsday Trailer and Infinity Vision Tickets (20 July 2026)
- S-07Marvel.com, All the Marvel Studios News from Hall H, SDCC 2026 (25 July 2026)
- S-08Marvel.com, D23 2026: The Stars of Avengers: Doomsday Unveil New Footage (14 August 2026)
- S-09Marvel.com, Countdown to Avengers: Doomsday watch guide (5 October 2026)
- S-10Marvel.com, Avengers: Secret Wars film page
- S-11Deadline: Kathryn Newton returns to the MCU in Avengers: Doomsday as Cassie Lang, announced by Newton on Instagram (17 April 2026). An actor's own confirmation, not yet named by Marvel
Facts last checked 2026-10-25.
Doomsday Dossier was designed and directed by Prejith, a Marvel fan who wanted one place to get ready for Avengers: Doomsday. The idea of making the site Doctor Doom's own computer, every feature on it, the music, the hacks and the look were his decisions.
Every fact on the site is sourced on its own page, and corrections from readers are welcome: open an issue.
Files go by each character's hero name, with their real name underneath; characters without a separate hero name keep their own. Threat rankings are fan votes, labelled as fan opinion; Marvel's own power-grid ratings appear separately on each file.
Doomsday Dossier is an unofficial, non-commercial fan project. It is not affiliated with, endorsed by or sponsored by Marvel, Marvel Studios or The Walt Disney Company. All character names, related marks and images are the property of their owners.
Fan votes in the combat simulation and fan threat ratings are opinions, not facts, and are labelled that way. Voting uses Cloudflare Turnstile to keep bots out. The site stores no account, name, email or IP address: a vote is counted once per fight per day using a code that changes daily and cannot be traced back to you.
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