Avengers: Doomsday Trailer Breakdown – Every Marvel Hero Who Appears and the Biggest Characters Missing
Marvel Studios has finally dropped the first official trailer for Avengers: Doomsday, and it has already become one of the biggest talking points among Marvel fans worldwide. Packed with legendary superheroes, shocking returns, and the long-awaited debut of Robert Downey Jr. as Doctor Doom, the trailer offers a glimpse into what could become one of the MCU’s most ambitious crossover films.
Set to hit theaters on December 18, Avengers: Doomsday unites heroes from across the Marvel Cinematic Universe (MCU), including the Avengers, Fantastic Four, X-Men, Wakandans, and the New Avengers. However, while the trailer features dozens of fan-favorite characters, several major MCU heroes are noticeably absent.
At Youngsters, we’ve broken down every major appearance and highlighted the biggest surprises from the trailer.
Robert Downey Jr. Returns to Marvel—But Not as Iron Man
One of the trailer’s most shocking moments is the full reveal of Robert Downey Jr. as Doctor Doom.
After spending more than a decade portraying Tony Stark/Iron Man, Downey returns to the MCU in an entirely different role. This time, he plays Victor Von Doom, better known as Doctor Doom, the ruthless ruler of the fictional nation of Latveria.
Following a brief teaser in The Fantastic Four: First Steps, the new trailer finally showcases Doctor Doom wearing his iconic green cloak and metallic mask while delivering a chilling warning:
“We shall be faced with an unthinkable decision.”
His appearance immediately establishes him as the central villain of Avengers: Doomsday.
Chris Evans Returns as Steve Rogers
Another major surprise is the long-awaited return of Chris Evans as Steve Rogers.
The original Captain America was last seen at the end of Avengers: Endgame, where he passed his iconic shield to Sam Wilson before retiring.
The new trailer confirms that Steve Rogers is back in action. One of its most exciting moments shows him once again wielding Mjolnir, Thor’s enchanted hammer, proving he remains worthy years after the events of Endgame.
Avengers Assemble Once Again
Several familiar MCU heroes unite to confront Doctor Doom.
The trailer features:
- Steve Rogers (Captain America)
- Sam Wilson (Captain America)
- Thor
- Bucky Barnes (Winter Soldier)
- Scott Lang (Ant-Man)
- Cassie Lang
- Shang-Chi
Thor appears to take on a leadership role, warning the team that they’re facing a threat unlike anything he’s encountered before.
Before battle begins, Scott Lang shares an emotional goodbye with his daughter Cassie, hinting at the high stakes awaiting Earth’s Mightiest Heroes.
Fantastic Four Join the MCU’s Biggest Battle
Following their introduction in The Fantastic Four: First Steps, Marvel’s First Family officially joins the fight against Doctor Doom.
The trailer features:
- Pedro Pascal as Reed Richards (Mister Fantastic)
- Vanessa Kirby as Sue Storm (Invisible Woman)
- Joseph Quinn as Johnny Storm (Human Torch)
- Ebon Moss-Bachrach as Ben Grimm (The Thing)
Considering Doctor Doom’s deep comic-book rivalry with the Fantastic Four, their role is expected to be central to the story.
The New Avengers Return
The newly formed superhero team introduced after Thunderbolts also appears in the trailer.
Returning members include:
- Yelena Belova
- John Walker (U.S. Agent)
- Red Guardian
- Ghost
- Falcon (Danny Ramirez)
Led by Florence Pugh’s Yelena Belova, the team appears ready to fight alongside the original Avengers.
X-Men Legends Return
Marvel is once again embracing the multiverse by bringing back several iconic X-Men stars.
Fans can spot:
- Professor Charles Xavier (Patrick Stewart)
- Magneto (Ian McKellen)
- Cyclops (James Marsden)
- Mystique (Rebecca Romijn)
- Gambit (Channing Tatum)
The return of these classic X-Men characters is one of the trailer’s biggest crowd-pleasing moments and further expands the MCU’s multiverse storyline.
Wakanda Stands with the Avengers
Wakanda also plays an important role in Avengers: Doomsday.
Returning characters include:
- Shuri (Black Panther)
- M’Baku
- Wakandan warriors
- Namor
- Namora
The alliance between Wakanda and the Avengers appears stronger than ever as Doctor Doom threatens the multiverse.
Loki Returns
Tom Hiddleston reprises his beloved role as Loki after the emotional ending of the Disney+ series Loki.
Having become the guardian of the multiverse’s branching timelines, Loki’s return suggests he could play a crucial role in the battle against Doctor Doom.
Major Marvel Characters Missing from the Trailer
Despite the enormous cast, several fan-favorite heroes are absent from the first trailer.
Notable missing characters include:
- Spider-Man
- Doctor Strange
- Hulk
- Scarlet Witch
- Deadpool
- Wolverine
- Captain Marvel
- Nick Fury
- Guardians of the Galaxy
Their absence doesn’t necessarily mean they won’t appear in the film. Marvel is well known for keeping major surprises hidden until release.
Confirmed Characters Who Didn’t Appear
Some actors have already been confirmed for Avengers: Doomsday despite not appearing in the trailer.
These include:
- Lewis Pullman as Sentry
- Kelsey Grammer as Beast
- Alan Cumming as Nightcrawler
Marvel is expected to reveal additional footage closer to the movie’s release.
Scarlett Johansson Won’t Return
Fans hoping for Black Widow’s return may be disappointed.
Scarlett Johansson has confirmed she will not reprise her role as Natasha Romanoff, explaining that her character’s journey concluded with Avengers: Endgame.
She has stated that Black Widow’s story is complete and believes bringing her back would undermine the character’s emotional ending.
Jean Grey Actress Reacts
Original X-Men actress Famke Janssen, who portrayed Jean Grey, has also revealed she was never contacted by Marvel regarding Avengers: Doomsday.
The actress expressed disappointment, saying she believes Marvel missed an opportunity by not inviting her back for the multiverse crossover.
Marvel Cinematic Universe Phases
| MCU Phase | Years | Notable Movies |
|---|---|---|
| Phase One | 2008–2012 | Iron Man, Thor, The Avengers |
| Phase Two | 2013–2015 | Captain America: The Winter Soldier, Guardians of the Galaxy, Avengers: Age of Ultron |
| Phase Three | 2016–2019 | Captain America: Civil War, Spider-Man: Homecoming, Avengers: Endgame |
| Phase Four | 2021–2022 | Black Widow, Spider-Man: No Way Home, Doctor Strange in the Multiverse of Madness |
| Phase Five | 2023–2025 | Guardians of the Galaxy Vol. 3, Deadpool & Wolverine, Thunderbolts* |
| Phase Six | 2025–Present | The Fantastic Four: First Steps, Spider-Man: Brand New Day, Avengers: Doomsday |
Final Thoughts
The first Avengers: Doomsday trailer delivers everything Marvel fans hoped for—massive superhero team-ups, multiverse surprises, and the stunning return of Robert Downey Jr. as Doctor Doom. Chris Evans’ comeback as Steve Rogers only adds to the excitement, while the inclusion of the Fantastic Four, X-Men, Wakandans, Loki, and the New Avengers hints at Marvel’s biggest cinematic event yet.
Although several iconic characters remain missing from the first trailer, Marvel has a history of saving its biggest surprises for the big screen. As more trailers and promotional material are released, fans can expect even more reveals leading up to the film’s theatrical debut on December 18.
Stay tuned to Youngsters for the latest Marvel news, Avengers: Doomsday updates, trailer breakdowns, MCU theories, and everything happening in the world of entertainment.
