Robert Downey Jr.'s Father's Day Post May Confirm Major Avengers: Doomsday Rumor - Possible Spoilers

Robert Downey Jr.'s Father's Day Post May Confirm Major Avengers: Doomsday Rumor - Possible Spoilers

Avengers: Doomsday star Robert Downey Jr. has shared a new social media post that, despite serving as a celebration of Father's Day, may also drop a big Avengers: Doomsday tease.

By JoshWilding - Jun 21, 2026 03:06 PM EST
Filed Under: Avengers: Doomsday

Avengers: Doomsday star Robert Downey Jr. has celebrated Father's Day with a new piece of Doctor Doom artwork. Presented in the style of a child's drawing, it shows the villain alongside his son as they both fly kites.

However, upon closer inspection, we see that they're emblazoned with the Avengers and Fantastic Four logos with a "no" or "prohibited" symbol emblazoned over them. Someone clearly isn't a fan of their dear old dad's greatest foes!

Is this just a fun post from the Oscar-winner, or might it have a deeper meaning? Getting into spoiler territory, it's previously been reported that Doom's wife and child die while he's investigating the Incursions that are laying waste to the Multiverse. That's a major departure from his comic book origin. 

When the ruler of Latveria later discovers that Steve Rogers was responsible (after travelling back in time in Avengers: Endgame for his happy ending with Peggy Carter), Doom enacts his revenge by murdering the former Captain America's son. So, yeah, Avengers: Doomsday could be about to get really dark.

"A lot of it has been...there's some experimentation," Downey recently said of his approach to playing Victor Von Doom. "We've had our moments of, 'Let's shift here.' But we landed in a place that I think will more than suffice. And it's not even about how I executed it. It's about the way it's been structured, and the other characters."

"There's something going on in Doomsday, and forward that is literally the only antidote to, 'How do you not have these films be let down after an Infinity War and an Endgame?' And boy, have we laboured long and hard to bring that down."

"I'm quite odd in that I try to stay as removed from a subjective experience of things as I can," he continued. "So I try to think like the brothers. I try to feel like I'm in the writing room. I try to feel all that stuff. But eventually, there are so many big shoes to step into that I just have to go, 'What hasn't been done as well as it can be done yet?' We're always looking for that opportunity."

Check out Downey's post below, and let us know your thoughts in the comments section.

In Avengers: Doomsday, beloved heroes from three distinct universes will be set on a deadly collision course and face an existential threat unlike anything they’ve ever encountered.

Avengers: Doomsday stars Chris Evans, 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, Mabel Cadena, Florence Pugh, Danny Ramirez, David Harbour, Hannah John-Kamen, Lewis Pullman, India Rose Hemsworth, and Wesley Holloway all make their Avengers franchise debuts.

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. 

The Russo Brothers direct Avengers: Doomsday and Avengers: Secret Wars from a screenplay by Stephen McFeely, with whom they previously collaborated on the Avengers and Captain America franchises. The movie is produced by Kevin Feige, Louis D'Esposito, and Jonathan Schwartz, with Callum McDougall serving as executive producer.

Avengers: Doomsday is set to be released on December 18.

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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0bstreperous
0bstreperous - 6/21/2026, 4:05 PM
Man I hope for the best with this movie but don't know after all the spoilers I've heard
Fogs
Fogs - 6/21/2026, 4:22 PM
@0bstreperous - I fear they have run out of ideas and will pull out just another MoM or DP&W. All (nostalgic) smoke and mirrors with little to no substance.
0bstreperous
0bstreperous - 6/21/2026, 4:44 PM
@Fogs - yeah, I've been listening to spoilers since NWH something I would would have never done before then but I listen to Den of Nerds at work and it's either mind numbing monatany of work or spoilers

This movie sounds like it's not a simple pitch you know? Too much going on
Spike101
Spike101 - 6/21/2026, 4:46 PM
@Fogs - I hope you are wrong but suspect you are correct. After Endgame, and to be honest really even after infinity War they had already run out of ideas. I think they would be better off scanning through the older comics and reusing the good storylines. Hopefully if they do this with Secret Wars it’ll all come good.
IAmAHoot
IAmAHoot - 6/21/2026, 5:03 PM
@0bstreperous - Oh. You mean "rumors"...
0bstreperous
0bstreperous - 6/21/2026, 5:12 PM
@IAmAHoot - no it's not rumors since I've been listening to them they've been correct for the most part and it's leaks over the course of about a year with the "rumors" being refined

It's a fine line between ruining the movie for myself
Fogs
Fogs - 6/21/2026, 5:22 PM
@Spike101 - I mean, what are the stakes? Incursions? Like in MoM? The end of all realities? Like in Loki or DP&W?

I mean, there's no plan being laid out, which only got worse with the whole J.Majors situation.

Because there was a time where, failed as it was, thor knew about the infinity stones and went to investigate what it was about, and each stone appeared in a different film. Little by little we learned about it, until in GoTG the whole plan was exposed with Thanos.

Why should we care about Doom? What could be worse than what we saw in previous films? I don't know... I really feel they seriously lost track of the storyline. And add to it a bunch of weeeak, weak characters after the strong MCU roster being dismantled.

I'm sorry to say I have little faith in the MCU's future right now.
TantricBoogie
TantricBoogie - 6/21/2026, 5:31 PM
@IAmAHoot - "tremors" by that ugly drawing
Spike101
Spike101 - 6/21/2026, 6:09 PM
@Fogs - I agree with every word. The Infinity Saga as it’s known had the stones running through most of the movies which engaged people as they learnt about them and the implications of having them all. Where we are now has nothing. Even with Kang the story always seemed a bit fragmented.
JonBenke
JonBenke - 6/21/2026, 7:28 PM
@0bstreperous - it’s your fault for reading bullshit and believing it to be true.
dragon316
dragon316 - 6/21/2026, 8:39 PM
@0bstreperous - need to watch it find out when it’s in theaters
IAmAHoot
IAmAHoot - 6/22/2026, 2:21 AM
@0bstreperous - So which “spoilers” are you referencing that aren’t rumors?
ObserverIO
ObserverIO - 6/22/2026, 4:52 AM
@Fogs - When you've got decades of comics to pull from you should never run out of ideas. And when you have all these characters at your disposal you should use them. Or at least bring in the big guns for the big movie.

It's frustratingly tantalising to see the first meeting of the X-Men, FF and Avengers when Cap doesn't have his shield because some other guy next to him is wearing his costume, the X-Men is half a team (mostly missing female members which isn't a good look and it's not like Famke or Paquin are expensive actors or anything) and the Avengers isn't really the Avengers. It's somewhere between the West Coast Avengers and the Great Lakes Avengers.
For an event this special we don't want the B-team.
0bstreperous
0bstreperous - 6/22/2026, 5:51 AM
@IAmAHoot - the outline of the movie just like all the other spoilers for movies I've heard since spiderman nwh
Fogs
Fogs - 6/22/2026, 6:41 AM
@ObserverIO - 100%, agreed.
IAmAHoot
IAmAHoot - 6/22/2026, 7:34 AM
@0bstreperous - That's quite the non-answer... And a correct guess doesn't alter what was once a rumor.
0bstreperous
0bstreperous - 6/22/2026, 8:16 AM
@IAmAHoot - you think that clip with doom was fake because that was in the leaks months ago
0bstreperous
0bstreperous - 6/22/2026, 8:30 AM
@0bstreperous - doom and the sentinels
IAmAHoot
IAmAHoot - 6/22/2026, 10:42 AM
@0bstreperous - What? Never said the footage was fake. But Doom controlling Sentinels has been theorized for a very long time; it turning out to be true is hardly a stretch.
ProfessorWhy
ProfessorWhy - 6/21/2026, 4:24 PM
What, the kid can't draw chest armor?
TheVisionary25
TheVisionary25 - 6/21/2026, 4:35 PM
Honestly , I could see this being a tease story wise into Doomsday or his version of the character atleast but RDJ has posted this type of art before that have just been cute & winking towards his current big role so I wouldn’t be surprised if this amounts to nothing aswell.

If his rumored motivation is true , then it reminds me of Iron Man:Armored Adventures where that iteration of Doom had no ties to the FF and was a member of the Latverian royal family that lost them all because of a failed experiment that also scarred him so if they are going that route then I think it could work but we’ll see.

User Comment Image

Anyway regardless , can’t wait to see Downey’s performance in the role!!.
TantricBoogie
TantricBoogie - 6/21/2026, 5:26 PM
This flick better blow me. Away
MyCoolYoung
MyCoolYoung - 6/21/2026, 8:58 PM
@TantricBoogie - whoa… I don’t think it’s that type of movie, sir
SummersEssex
SummersEssex - 6/21/2026, 5:45 PM
Couldn't possibly just be a cute card, though, right?
WruceBayne
WruceBayne - 6/21/2026, 6:12 PM
@SummersEssex - unfortunately it can’t… at least not around these parts. Every post, interview or tweet by ANYBODY that has anything to do with an upcoming comic book movie is a cryptic message to the broader story.
LSHF
LSHF - 6/21/2026, 5:56 PM
"...Doom enacts his revenge by murdering the former Captain America's son..."

That's pretty f#cking dark, and I hope they don't go there.

If this happened in the comics, then I'm sure many comic book fans will want to see this happen on screen, however most MCU fans aren't comic book readers and I'm guessing most don't want to see this.

Fingers crossed....
TheVisionary25
TheVisionary25 - 6/21/2026, 6:14 PM
@LSHF - yeah , idk about child murder being shown in a Marvel film…

Morally i dont want to see it but in terms of storytelling , it would certainly be ballsy if it happens at the end of Doomsday and we end on such a dark note which would certainly alienate the audience to an extent but might be appreciated for its risk taking.
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