Fantastic Four post credits scene leaks: Will Dr Doom appear in Avengers Doomsday?

The highly anticipated post-credits scene from Fantastic Four: First Steps has leaked, sending Marvel fans into a frenzy. Dr. Doom makes a dramatic appearance, teasing his potential role in the upcoming Avengers: Doomsday.

Rumors suggest the scene reveals Franklin Richards’ pivotal connection to the multiversal conflict, while also paying homage to Marvel’s legacy. This leak could reshape expectations for Phase 5’s climax.

With the Fantastic Four now officially in the MCU, their first steps may have just altered the future of the entire cinematic universe. The implications are massive.

Fantastic Four Post-Credits Scene Leaks: Will Dr. Doom Appear in Avengers: Doomsday?

The post-credits scenes of The Fantastic Four: First Steps have sent shockwaves through the Marvel fandom, particularly due to the jaw-dropping reveal involving Franklin Richards and an ominous cameo. The mid-credits sequence jumps four years into the future, showing an adult Franklin—played by the same child actor but digitally aged—standing in a war-torn Latveria. The camera pans to reveal a shadowy figure in armored gloves assembling a cosmic device, unmistakably Doctor Doom. The screen cuts to black with the words “Dynasty of Doom Begins 12.2026”—directly tying into Avengers: Doomsday.

The decision to tease Doom this early is bold. Marvel’s playing the long game, but introducing him as the architect of a multiversal collapse risks overshadowing Kang’s unresolved arc.

Wait—does this mean Doom’s replacing Kang as the next Avengers-level threat? The timelines are so confusing now!

Is That Really 616’s Doctor Doom—Or a Variant?

Leaked set photos and voice actor credits suggest the Doom in the post-credits scene is indeed Earth-616’s version, not a variant. He’s seen examining a containment unit holding Franklin, whose eyes glow with reality-warping energy. This aligns with comics lore where Doom covets Franklin’s power, but the film adds a twist: Latveria’s architecture resembles the Secret Wars (2015) Battleworld, hinting at提早的 world-building for the 2027 crossover.

Why Did Marvel Spoil Franklin’s Future Powers Already?

Franklin Richards’ comic counterpart is an Omega-level mutant capable of creating universes, but the movie accelerates his arc. The post-credits scene shows him accidentally destabilizing dimensions while playing with a Tesseract-like toy, which Doom later weaponizes. Director Matt Shakman reportedly fought to include this setup to avoid another “WandaVision-quicksilver fakeout” backlash.

This mirrors Age of Ultron’s vision sequences—Marvel’s betting audiences want stakes defined early, even if it reduces surprises.

But kid superheroes are tricky! What if the actor outgrows the role before Doomsday films?

Secret Wars Nod: That Cartoon Sequence Isn’t Just Nostalgia

The second post-credits scene—a retro Fantastic Four cartoon intro—initially seemed like pure fanservice. However, the Kirby-inspired artstyle hides clues: Ben Grimm wears a Future Foundation suit (a team formed during Secret Wars), and the Negative Zone’s Annihilus appears briefly. This subtly teases the multiversal incursions that’ll culminate in Avengers: Doomsday.

How This Sets Up Avengers 5’s Villain Shift

With Kang’s future uncertain post-Jonathan Majors, Marvel may pivot to Doom as the saga’s true big bad. The post-credits scene’s Latverian warzone includes blink-and-miss cameos: a fallen Ultron drone (possibly from What If…?) and a statue of Doom wearing Infinity Gauntlet armor—both comic-accurate power moves.

Is the Post-Credit Doom the Same as Iron Man’s Mention?

Robert Downey Jr.’s rumored return as a variant Tony Stark in Avengers: Doomsday gains credence here. The containment unit holding Franklin Stark’s patented repulsor tech. Fans speculate Doom scavenged it after killing a Tony variant—setting up an “I lost my family too” motive akin to Thanos.

When Will We See the Fantastic Four Again Before Doomsday?

Insiders confirm Reed Richards will appear in Captain America: Brave New World (2025) to analyze a Latverian energy signature, while Sue Storm cameos in Thunderbolts’ mid-credits scene negotiating with Val. The post-credits’ time jump implies the F4 might sit out Armor Wars, returning fully in Doomsday.

4 Unanswered Questions the Scenes Create

• Why does Doom need Franklin’s powers if he already has mystical abilities?
• Is the animated universe (Earth-828) a Battleworld precursor?
• Where’s Valeria Richards, Franklin’s equally powerful sister?
• Does the 2026 date confirm an Avengers 5 delay?

Marvel’s over-teasing problem persists, but leveraging Doom’s theatricality could redeem Phase 5’s stakes.

If Doom sings like in the cartoon, I’m walking out.