Disney+’s current “Countdown to Avengers: Doomsday” collection was checked and cross-referenced with Marvel’s official release information. Confirmed facts are labeled as such. Theories and speculation are clearly identified throughout.
In August 2026, Disney+ added an official “Countdown to Avengers: Doomsday” collection featuring 15 Marvel movies and series. Avengers: Doomsday releases in theaters on December 18, 2026, directed by Joe and Anthony Russo, with Robert Downey Jr. returning as Victor Von Doom. The 15-title watchlist spans roughly 42 hours of viewing and covers three distinct Marvel universes.
Disney+’s Official 15-Title Doomsday Watchlist
Disney+ added the “Countdown to Avengers: Doomsday” collection in August 2026. The 15 titles are listed below, not in chronological or release order, but in the configuration Disney+ currently presents them:
| # | Title | Year | Why you need it |
| 1 | X-Men | 2000 | Establishes the Fox X-Men universe and its core characters Professor Xavier, Magneto, Wolverine who converge in Doomsday. |
| 2 | X2 | 2003 | Deepens the Fox X-Men ensemble and its central ideological tensions. |
| 3 | Captain America: The First Avenger | 2011 | Establishes Steve Rogers’ values and history essential context for his fateful choice at the end of Endgame. |
| 4 | The Avengers | 2012 | The original team-up that built the emotional architecture Doomsday relies on; also, the source of the Loki variant who fractures the timeline. |
| 5 | Avengers: Infinity War | 2018 | Sets up the stakes, introduces time as a critical variable, and begins the chain of events Endgame resolves. |
| 6 | Avengers: Endgame | 2019 | The direct foundation for Doomsday time heist mechanics, Steve’s timeline branch, Tony’s sacrifice, and RDJ’s last MCU appearance before returning as Doom. |
| 7 | Loki (Seasons 1 & 2) | 2021–2023 | The most important viewing for understanding multiverse mechanics; establishes the TVA, variants, and Loki’s role as the living anchor of all timelines. |
| 8 | Shang-Chi and the Legend of the Ten Rings | 2021 | Introduces a confirmed Doomsday cast member and leaves the Ten Rings’ cosmic origin explicitly unresolved. |
| 9 | Spider-Man: No Way Home | 2021 | Demonstrates what happens when multiversal barriers break down; included on the official list despite no confirmed Spider-Man appearance in Doomsday. |
| 10 | Black Panther: Wakanda Forever | 2022 | Establishes Shuri as the new Black Panther and introduces Namor both confirmed for Doomsday. |
| 11 | Doctor Strange in the Multiverse of Madness | 2022 | Defines incursions the catastrophic collision of two universes a central concept in Doomsday‘s premise. |
| 12 | Deadpool & Wolverine | 2024 | Officially brings the Fox Marvel universe into the living MCU multiverse; both leads are confirmed for Doomsday. |
| 13 | Captain America: Brave New World | 2025 | Establishes Sam Wilson as Earth’s current Captain America and introduces Adamantium into the MCU. |
| 14 | Thunderbolts* | 2025 | Introduces Sentry and the reformed anti-hero team confirmed for Doomsday; post-credits scene marks the first on-screen contact between Earth-616 and Earth-828. |
| 15 | The Fantastic Four: First Steps | 2025 | The most direct Doomsday setup on the list introduces the Fantastic Four, establishes Earth-828, and delivers the mid-credits scene that first reveals Doctor Doom. |
Total runtime: Estimates from recent reporting put the full watchlist at approximately 42 hours, depending on episode cuts and film versions used. The Russos are also re-releasing Avengers: Endgame with roughly seven minutes of new footage as a direct bridge to Doomsday; watch that version if you can.
Note on the list: Two of the 15 titles, X-Men (2000) and X2 (2003) are Fox-era films, not MCU productions. “15 Marvel movies and series” is the more accurate framing than “15 MCU projects.”
Recommended Watch Order
If you’re watching from scratch, this sequence makes the most narrative sense:
- X-Men (2000)
- X2 (2003)
- Captain America: The First Avenger
- The Avengers
- Avengers: Infinity War
- Avengers: Endgame (re-release version, if available)
- Loki Season 1
- Loki Season 2
- Shang-Chi and the Legend of the Ten Rings
- Spider-Man: No Way Home
- Doctor Strange in the Multiverse of Madness
- Black Panther: Wakanda Forever
- Deadpool & Wolverine
- Captain America: Brave New World
- Thunderbolts*
- The Fantastic Four: First Steps
Watch the Fox X-Men films first, on their own terms, before the multiverse complicates things. Save the four most recent titles for last; they function most directly as Doomsday lead-ins.
What You Actually Need From Each Title
X-Men (2000) & X2 (2003): Recommended
Confirmed: The Fox X-Men universe is one of three converging in Doomsday. Wolverine’s appearance is confirmed via Deadpool & Wolverine.
These two films establish the Fox-era characters Professor Xavier, Magneto, Wolverine, Cyclops, Jean Grey and the ideological divide between cooperation and self-preservation that defines the franchise. X2 adds more depth and a stronger ensemble.
What to carry forward: The emotional history of these characters. Doomsday is unlikely to reintroduce them from scratch; it expects you to already know them.
Speculation: Which Fox-era characters beyond Wolverine appear in Doomsday has not been confirmed.
Captain America: The First Avenger (2011): Recommended
Confirmed: Chris Evans returns to Doomsday in some capacity. The full nature of his role has not been publicly detailed.
The film establishes Steve Rogers’ values and his willingness to sacrifice personal happiness for duty, context that matters directly for what he chooses at the end of Endgame.
Speculation: A widely discussed fan theory holds that Steve’s decision to stay in the past created a branching timeline that eventually caused an incursion destroying Doctor Doom’s world. Marvel has not confirmed this, and how exactly Steve’s ending interacts with Endgame‘s own timeline rules remains a point of ongoing debate among fans and analysts.
The Avengers (2012): Recommended
Confirmed: This is the foundational team-up Doomsday builds on emotionally and structurally.
The relational dynamics established here Tony and Steve’s friction, Fury’s strategy, Loki’s ambition underpin every subsequent Avengers film. It’s also where the 2012 Loki variant escapes with the Tesseract during Endgame‘s time heist, setting off the entire TVA storyline in Loki.
Avengers: Infinity War (2018) & Avengers: Endgame (2019): Essential
Confirmed: The Russo Brothers, directors of both films, return for Doomsday. Joe Russo has described Endgame as the direct foundation for what Doomsday builds on. Robert Downey Jr. returns in Doomsday as Victor Von Doom, announced at San Diego Comic-Con 2024.
Infinity War establishes the stakes and introduces time as a critical variable. Endgame executes the time heist, branches the timeline, and ends with Steve Rogers choosing to stay in the past. These are the two most important films to watch before Doomsday.
Watch the Endgame re-release if available; the Russos are adding approximately seven minutes of new footage specifically to bridge it to Doomsday.
Speculation: Some fans and analysts theorize that Steve’s timeline branch is linked to Doctor Doom’s backstory that resulted in the incursion that destroyed Doom’s world. Compelling, but unconfirmed.
Loki Seasons 1 & 2 (2021–2023): Essential
Confirmed: The only TV series on the official watchlist. Tom Hiddleston’s Loki appears in Doomsday.
These two seasons are the most important prep for understanding how the multiverse functions. Season 1 introduces the TVA, variants, and the concept that reality is actively managed. Season 2 shows that system failing. Loki’s arc concludes with him becoming the living anchor of all timelines, holding the multiverse together through will alone.
Established by released MCU material: Every timeline’s stability now depends on Loki remaining in place. Disrupting that stability puts every universe at risk.
Shang-Chi and the Legend of the Ten Rings (2021): Optional context
Confirmed: Simu Liu’s Shang-Chi is part of the Doomsday ensemble.
The film introduces Shang-Chi and the Ten Rings, an ancient artifact whose cosmic origin remains explicitly unresolved. Bruce Banner and Captain Marvel investigate the signal the Rings emit, a thread that hasn’t been followed up in any later MCU project. Whether that connects to Doomsday is unconfirmed.
Spider-Man: No Way Home (2021): Recommended
Confirmed: No Way Home is on the official watchlist. Spider-Man has not been confirmed for Doomsday.
The film’s main value for Doomsday prep is mechanical: it demonstrates concretely what happens when multiversal barriers collapse. Tobey Maguire and Andrew Garfield’s Peter Parkers prove that heroes from different cinematic timelines can share space and interact meaningfully.
Speculation: The film’s inclusion despite no confirmed Spider-Man appearance has prompted significant fan speculation. Disney+’s decision to include it is equally consistent with it being relevant for its multiverse mechanics alone.
Black Panther: Wakanda Forever (2022): Recommended
Confirmed: Shuri (Letitia Wright), M’Baku, and Namor are confirmed for Doomsday.
The film completes Shuri’s transition from grieving sister to Black Panther and introduces Namor, ruler of Talokan, with his own military power and no inherent loyalty to any Avengers coalition. Knowing where both characters stand coming into Doomsday requires this film.
Doctor Strange in the Multiverse of Madness (2022): Essential
Confirmed: The film is on the official watchlist. Doctor Strange and Scarlet Witch have not been officially confirmed for Doomsday.
This is the MCU’s clearest explanation of incursions: the catastrophic collision of two universes that destroys one or both. The Illuminati of Earth-838 understand this phenomenon and the extreme measures required to prevent it. That concept sits at the center of Doomsday‘s premise.
Speculation: The film’s inclusion on the official list has led to widespread speculation about appearances from Strange or Wanda. Marvel has not confirmed this.
Deadpool & Wolverine (2024): Essential
Confirmed: Both Deadpool (Ryan Reynolds) and Wolverine (Hugh Jackman) are confirmed for Doomsday.
This film officially made the Fox Marvel universe part of the living MCU multiverse. The TVA’s involvement ties directly to Loki‘s narrative infrastructure. The Void is reintroduced here as a location outside normal timeline rules.
Speculation: Whether the Void functions similarly to the Secret Wars comics’ remnant space in Doomsday has not been confirmed.
Captain America: Brave New World (2025): Optional context
Confirmed: Anthony Mackie’s Sam Wilson is confirmed for Doomsday as Captain America.
The film establishes Sam in his current role and quietly introduces Adamantium, the metal associated with Wolverine, into the MCU. Its political thriller elements and tonal inconsistencies make it a harder watch than most entries on this list. Forbes’ Paul Tassi flagged it as one of Marvel’s lower-rated releases and suggested The Falcon and the Winter Soldier as a stronger alternative for understanding Sam Wilson’s character foundation. However, that series is not on the official watchlist.
Speculation: Whether the Adamantium thread connects directly to Doomsday has not been confirmed.
Thunderbolts* (2025): Essential
Confirmed: Yelena Belova (Florence Pugh), Bucky Barnes (Sebastian Stan), Red Guardian (David Harbour), and Sentry/Bob (Lewis Pullman) are confirmed for Doomsday.
The film introduces Sentry, widely regarded as the MCU’s most powerful and unstable character to date, and reframes what an Avengers-adjacent team can look like. The post-credits scene, in which the Fantastic Four arrive through a portal, marks the first on-screen contact between Earth-616 and Earth-828.
The Fantastic Four: First Steps (2025): Essential
Confirmed: Reed Richards (Pedro Pascal), Sue Storm (Vanessa Kirby), Johnny Storm (Joseph Quinn), Ben Grimm (Ebon Moss-Bachrach), and Doctor Doom (Robert Downey Jr.) all appear in Doomsday. The Fantastic Four originate from Earth-828.
This film does more direct Doomsday setup than anything else on the list. The Fantastic Four arrive as an established family, not an origin story. They face Galactus. Reed and Sue’s son Franklin Richards draws cosmic attention. The mid-credits scene introduces Doctor Doom and his connection to Reed Richards. The empty Latverian seat at an international council is widely interpreted as a signal that Doom has existed within Earth-828 long before the film’s events.
Why Disney+ Chose These Specific Titles
The list isn’t random, and it isn’t simply a recap of popular films. Read together, the 15 titles prioritize three things: multiverse mechanics, the characters confirmed for Doomsday, and the emotional legacies those characters carry.
The multiverse framework built across Loki, No Way Home, and Multiverse of Madness gives the film its structural logic. The confirmed character appearances across Wakanda Forever, Thunderbolts*, First Steps, and Deadpool & Wolverine give the film its roster. And the foundational films The First Avenger, The Avengers, Infinity War, Endgame, and the two Fox X-Men films provide the emotional weight.
What’s notable about the list is what it hints at rather than confirms. As Forbes’ Paul Tassi noted in August 2026, some titles feature characters like Doctor Strange, Scarlet Witch, and various Spider-Men who have not been publicly announced for Doomsday. Disney’s choice to include those films suggests they’re relevant. It doesn’t confirm how.
Confirmed vs. Speculated
Confirmed by Marvel or Disney
- Avengers: Doomsday releases December 18, 2026, directed by Joe and Anthony Russo
- Robert Downey Jr. plays Victor Von Doom (announced SDCC 2024)
- Disney+ added the “Countdown to Avengers: Doomsday” 15-title collection in August 2026
- The Avengers, Thunderbolts, Fox X-Men, and Fantastic Four all appear in Doomsday
- Avengers: Endgame is being re-released with approximately seven minutes of new footage
Established by Released MCU Material
- Loki is the living anchor of the multiverse (Loki Season 2)
- Incursions, the collision and destruction of two universes, are an established MCU concept (Multiverse of Madness)
- The TVA actively manages timeline branches and variants (Loki)
- The Fox Marvel universe is now part of the MCU multiverse (Deadpool & Wolverine)
- Adamantium exists in the MCU (Captain America: Brave New World)
- Doctor Doom exists in Earth-828 and has a relationship with Reed Richards (The Fantastic Four: First Steps, mid-credits)
Fan Theory / Speculation (Not Confirmed)
- Steve Rogers’ choice to stay in the past caused an incursion that destroyed Doom’s world
- Doctor Strange and/or Scarlet Witch appear in Doomsday in covert roles
- Spider-Man (any version) appears in Doomsday
- Scarlet Witch survived the events of Multiverse of Madness
- The Ten Rings’ signal connects to Doomsday‘s plot
- The Void from Deadpool & Wolverine functions as a Secret Wars-style remnant space
Do You Actually Need to Watch All 15?
Practically speaking, no, not equally. Some titles are essential. Some provide context. Here’s a quick priority guide:
Watch these first (highest narrative relevance):
- Avengers: Endgame (re-release preferred)
- Loki Seasons 1 & 2
- The Fantastic Four: First Steps
- Thunderbolts*
- Deadpool & Wolverine
- Doctor Strange in the Multiverse of Madness
Watch these for character context:
- X-Men and X2
- The Avengers
- Avengers: Infinity War
- Black Panther: Wakanda Forever
- Spider-Man: No Way Home
These fill in the roster:
- Captain America: The First Avenger
- Shang-Chi and the Legend of the Ten Rings
- Captain America: Brave New World
Also Read: Avengers: Doomsday D23 Trailer Breakdown
What to Watch Before Avengers: Doomsday Frequently Asked Questions (FAQs)
What is the total runtime of the Avengers: Doomsday watchlist?
Recent reporting estimates the 15-title collection runs approximately 42 hours in total, depending on episode and film version. Treat this as an approximation.
When does Avengers: Doomsday release?
December 18, 2026. Disney+ added the “Countdown to Avengers: Doomsday” collection in August 2026, which is separate from the film’s release date.
Who directed Avengers: Doomsday?
Joe and Anthony Russo, who previously directed Captain America: The Winter Soldier, Captain America: Civil War, Avengers: Infinity War, and Avengers: Endgame.
Which universes converge in Doomsday?
Three: Earth-616 (the main MCU Avengers timeline), Earth-828 (the Fantastic Four’s retro-futurist universe from First Steps), and the original Fox X-Men universe.
Does the watchlist hint at unannounced characters?
Possibly. The official collection includes Spider-Man: No Way Home and Doctor Strange in the Multiverse of Madness, despite neither Spider-Man nor Doctor Strange being publicly confirmed for Doomsday. This has led to speculation that Marvel has not yet announced the film’s full cast. The watchlist’s inclusion of these films is consistent with that possibility, but it doesn’t confirm it.
Do I need to watch the Fox X-Men films?
Disney+ included X-Men (2000) and X2 (2003) on the official list. They provide the emotional foundation for the Fox-era characters, especially Wolverine, and help explain why their inclusion in a multiverse crossover carries real weight. They’re recommended.
Why is Avengers: Endgame being re-released?
The Russos are adding approximately seven minutes of new footage to Endgame and re-releasing it in theaters as a narrative bridge to Doomsday. Joe Russo has described Endgame as the ground floor of everything Doomsday builds on.
Shikhar Jauhari is an entrepreneur, journalist, and digital content strategist with expertise in SEO, WordPress, and online publishing. He is the founder and editor of WRI News, where he covers entertainment, finance, government schemes & lifestyle. With a strong focus on delivering accurate, engaging, and reader-first content, he combines editorial excellence with data-driven SEO strategies to create content.
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