Doctor Doom Believes Steve Rogers’ Son Should Never Exist (Avengers: Doomsday Leak)

Warning: This post contains potential spoilers for Marvel’s Avengers: Doomsday.

Robert Downey Jr.‘s Doctor Doom is going to make Chris Evans‘ Steve Rogers pay in Avengers: Doomsday, as he resides in Earth-838, which caused the multiversal incursion and also killed Doom’s family.

According to scooper @MyTimeToShineH, “Doctor Doom kills Steve’s son right in front of him in one of the most shocking moments of the film.”

In a recent plot leak, Doom takes Steve to his castle in Latveria on his Earth. There, Steve meets Doom’s followers, who are masked witches. One of them pretends to be Peggy to trick him. Doom explains that Steve’s presence in their universe started the incursion because he did not belong there.

Doom later tried dangerous experiments to stop it, but one experiment failed, killing his family and leaving him badly injured, forcing him to wear armor and a mask. To get revenge, Doom kills Steve’s son in front of him.

There is a deleted post-credit scene in The Fantastic Four: First Steps that features the Fantastic Four visiting Steve at his cabin on their Earth and asking him for help with a multiversal problem—the Incursions.

Following Endgame, Steve is living a quiet life with Peggy and their son when Loki arrives. Now in control of the timelines, Loki explains that the TVA sees Steve’s presence as a mistake and intends to erase the timeline. Loki gives Steve a choice—relocate to a different universe where he and his family can live without being hunted. They are then sent to Earth-828, the Fantastic Four’s world.

In a recent interview with Empire Magazine, Anthony Russo said that Steve Rogers will have a “central role” in Avengers: Doomsday.

He said, “We have a special affinity for the character.” He added, “We can’t see this narrative without his central role in it. The special place he holds among the ensemble is something he will retain moving forward.”

Directed by the Russo brothers from a screenplay by their longtime collaborator Stephen McFeely and Michael Waldron.

Here’s the plot synopsis for Avengers: Doomsday:

“Doctor Doom has officially arrived on the Marvel Cinematic Universe stage. This villain, a master of cutting-edge science and powerful magic, will unleash a cascading crisis across the multiverse. Marvel’s most iconic actor, Robert Downey Jr., also returns as Doctor Doom!”

Confirmed Cast for Avengers: Doomsday

Main MCU Heroes:

• Robert Downey Jr. – Doctor Doom
• Chris Evans – Steve Rogers
• Paul Rudd – Ant-Man
• Simu Liu – Shang-Chi
• Tom Hiddleston – Loki
• Florence Pugh – Yelena Belova
• Danny Ramirez – Falcon
• Sebastian Stan – Bucky Barnes
• Winston Duke – M’Baku
• Chris Hemsworth – Thor
• Letitia Wright – Black Panther
• Tenoch Huerta Mejía – Namor
• Anthony Mackie – Captain America
• David Harbour – Red Guardian
• Wyatt Russell – U.S. Agent
• Hannah John-Kamen – Ghost
• Lewis Pullman – Sentry

X-Men Universe:

• Ian McKellen – Magneto
• Patrick Stewart – Professor X
• Rebecca Romijn – Mystique
• James Marsden – Cyclops
• Kelsey Grammer – Beast
• Alan Cumming – Nightcrawler
• Channing Tatum – Gambit

Fantastic Four Universe:

• Pedro Pascal – Reed Richards (Mr. Fantastic)
• Vanessa Kirby – Sue Storm (Invisible Woman)
• Joseph Quinn – Johnny Storm (Human Torch)
• Ebon Moss-Bachrach – Ben Grimm (The Thing)

Produced by Kevin Feige, Louis D’Esposito, and Russo Brothers will produce through their AGBO banner.

Avengers: Doomsday will be released in theaters and IMAX across the United States on December 18, 2026, and Avengers: Secret Wars is scheduled for release on December 17, 2027.