AVENGERS: DOOMSDAY Teaser Trailer #3 Officially Released; The X-Men Make Their Long-Awaited MCU Debut!

AVENGERS: DOOMSDAY Teaser Trailer #3 Officially Released; The X-Men Make Their Long-Awaited MCU Debut!

The third Avengers: Doomsday teaser trailer has been officially released by Marvel Studios, and it features the long-awaited MCU debuts of Professor X, Magneto, Cyclops, and the Sentinels.

By JoshWilding - Jan 06, 2026 09:01 AM EST
Filed Under: Avengers: Doomsday

Marvel Studios has officially released the third Avengers: Doomsday teaser trailer, and this time, the spotlight is put squarely on the X-Men.

Professor X (Patrick Stewart), Magneto (Ian McKellen), and Cyclops (James Marsden) are featured in the preview, which paints the picture of yet another bleak future for the mutant team. The X-Mansion is in ruins, and Scott Summers appears to be the last one standing against the massive Sentinels.

"Death comes for us all, that’s all I know for sure," Magneto can be heard saying. "The question isn’t are you prepared to die, the question is who would you be when you close your eyes?"

The fourth teaser leaked online earlier today, featuring Black Panther, King M'Baku, Namor, and The Thing. According to @MyTimeToShineH, despite talk of fifth and sixth sneak peeks being on the way, only four are being sent to theaters. That means the final teaser will be officially released this time next week.

Fortunately, we won't have long to wait until seeing more from Avengers: Doomsday. Marvel Studios is expected to pull back the curtain on Doctor Doom in a traditional trailer that debuts during next month's Super Bowl.

Back to the X-Men, and love or hate 20th Century Fox's mutant franchise, it looks like the MCU has nailed these characters in what will likely be their final appearance before the post-Avengers: Secret Wars reboot helmed by Jake Schreier.

You can watch the third Avengers: Doomsday teaser trailer in the players below.

Avengers: Doomsday officially stars Chris Hemsworth, Anthony Mackie, Winston Duke, Tom Hiddleston, Sebastian Stan, Letitia Wright, Paul Rudd, and Robert Downey Jr. Wyatt Russell, Simu Liu, Tenoch Huerta Mejia, Florence Pugh, Danny Ramirez, David Harbour, Hannah John-Kamen, and Lewis Pullman all make their Avengers franchise debuts in the movie.

The Fantastic Four: First Steps leads Pedro Pascal, Vanessa Kirby, Ebon Moss-Bachrach, and Joseph Quinn join them, as do X-Men franchise stars Kelsey Grammer, Patrick Stewart, Ian McKellen, Alan Cumming, Rebecca Romijn, James Marsden, with Deadpool & Wolverine star Channing Tatum.

Chris Evans is also officially confirmed to reprise his role as Steve Rogers, as is India Rose Hemsworth as Love. The Hollywood trades have reported that Hayley Atwell and Ryan Reynolds will appear as Peggy Carter and Deadpool, respectively.

The Russo Brothers direct Avengers: Doomsday from a screenplay by Stephen McFeely, with whom they previously collaborated on the Avengers and Captain America franchises. Loki and Doctor Strange in the Multiverse of Madness's Michael Waldron is also working on the script.

Avengers: Doomsday is set to be released on December 18, with Avengers: Secret Wars scheduled to arrive on December 17, 2027.

About The Author:
JoshWilding
Member Since 3/13/2009
Comic Book Reader. Film Lover. WWE and F1 Fan. Rotten Tomatoes-approved critic and ComicBookMovie.com's #1 contributor.
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Wahhvacado
Wahhvacado - 1/6/2026, 9:11 AM
Let's Go!

User Comment Image

Please give Scott is due!
Bucky74
Bucky74 - 1/6/2026, 9:54 AM
@Wahhvacado - I may have accidentally let some bodily fluids go when I watched this.
Wahhvacado
Wahhvacado - 1/6/2026, 10:34 AM
@Bucky74 - User Comment Image
Ryguy88
Ryguy88 - 1/6/2026, 11:11 AM
@Wahhvacado - best we can do is a cool 5 minute battle sequence before killing him off again.
Lucasberg
Lucasberg - 1/6/2026, 12:16 PM
@Ryguy88 - 😂
Wahhvacado
Wahhvacado - 1/6/2026, 2:33 PM
@Ryguy88 - User Comment Image
mastakilla39
mastakilla39 - 1/6/2026, 2:55 PM
@Ryguy88 - I'm pretty sure with this large cast most of them will only have 5 minutes or less if they aren't a major plot point similar to deadpool and wolverine.
Scarilian
Scarilian - 1/6/2026, 5:55 PM
@Wahhvacado -
Bringing back the X-Men and having them talk about how they are old/dying and then having Cyclops in likely his death scene firing off his laser for the only time he'll do so in the film... that's definitely a choice I guess.
ImNotaBot
ImNotaBot - 1/6/2026, 9:16 AM
[frick]ing amazing
User Comment Image
Arthorious
Arthorious - 1/6/2026, 2:33 PM
@ImNotaBot - dreams don’t die User Comment Image
vectorsigma
vectorsigma - 1/6/2026, 9:19 AM
Great. A 2k version of a scene of 2 of the most beloved characters in cbm. And they didnt shoot their scenes together 😭
Clintthahamster
Clintthahamster - 1/6/2026, 12:47 PM
@vectorsigma - Do you just assume every time there's an edit in a piece of film that it indicates the actors weren't in the same room?
Yellow
Yellow - 1/6/2026, 1:17 PM
@Clintthahamster - he just likes to complain because no one here liked the dragon ball movie he loved so much, let him be
WeaponXCII
WeaponXCII - 1/6/2026, 9:22 AM
User Comment Image

It might have taken us a quarter of a century, but we finally got here!
MahN166A
MahN166A - 1/6/2026, 10:36 AM
@WeaponXCII - I think it'd be a pretty funny call back if they touched on this again.

Logan looking at Scott:
What happened, you didn't like the tight black leather anymore?
SonOfAGif
SonOfAGif - 1/6/2026, 10:51 AM
@MahN166A - Deadpool needs to be the one to do it. "Well I for one am glad it took 26 years and the end of every cinematic universe for you guys to finally get comic accurate costumes."
rychlec
rychlec - 1/6/2026, 10:57 AM
@SonOfAGif - Crap like that from Deadpool has no place in an Avengers movie. In fact, Deadpool shouldn't have a place in an Avengers movie.
MahN166A
MahN166A - 1/6/2026, 11:00 AM
@SonOfAGif - As much as I can easily imagine Deadpool doing, I feel like it would hit better if it came from Logan since they first tackled the issue in regards to comic accurate costumes in films.
SonOfAGif
SonOfAGif - 1/6/2026, 12:43 PM
@rychlec - Doomsday isn't only an Avengers movie though. It's every Marvel Team joining forces against Doom.
TheExile117
TheExile117 - 1/6/2026, 9:22 AM
That Cyclops costume is an absolute chef’s kiss. FINALLY
Jackraow21
Jackraow21 - 1/6/2026, 10:48 AM
@TheExile117 - It really is. Looks great!
TheVisionary25
TheVisionary25 - 1/6/2026, 9:23 AM
That last shot is so good!!.

Honestly besides the Gray Man (which I thought was decent) , I haven’t seen the Russo’s other non MCU work but I do wonder where the sauce they are bringing to this and their other MCU projects has been for that stuff?.

Also from a visual standpoint , this movie might be one of if not the best looking Avengers film imo!!.
EskimoJ
EskimoJ - 1/6/2026, 12:08 PM
@TheVisionary25 - They tap into the already built-in fanbase for their MCU characters.

That doesn't exist with their films outside this universe.
TheVisionary25
TheVisionary25 - 1/6/2026, 9:25 AM
Avengers Doomsday teaser rankings (favorite to least):

1.X-Men
2.Thor
3.The Wakandans & FF
4.Steve Rogers
bobevanz
bobevanz - 1/6/2026, 9:26 AM
It's cool indeed. X-Men will be the best part of this hodgepodge
SummersEssex
SummersEssex - 1/6/2026, 9:26 AM
F****** finally
Corruptor
Corruptor - 1/6/2026, 9:28 AM
You'll be you, but dead you. Silly old duffer...
PC04
PC04 - 1/6/2026, 9:32 AM
Cyclops has arrived! Loving the costume and the [frick]ing chaos and power of the beam!
Vigor
Vigor - 1/6/2026, 9:49 AM
@PC04 - I want to see that full power of that beam vs. Capt marvel

Whew...
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