In the six years sinceAvengers: Endgamemarked Thanos' defeat, Marvel Animation’sWhat If…?series has, time and again, proved just how weak the Mad Titan really is in theMCU, which has massively discredited the Avengers. Thanos made his mark on the MCU as the most infamous intergalactic warlord of the Infinity Saga and the adoptive father ofGuardians of the Galaxy’sGamora and Nebula. WhileThanos hasn’t officially returned to the MCU, the Mad Titan has made frequent appearances in the Multiverse Saga, but these have just delivered insult after insult.

Thanos is widely considered to be the best villain in the MCU, having posed a huge threat to the universe in the Infinity Saga, and even being successful in his mission to eradicate half of all life. However, the regular appearances ofThanos' variants in Marvel’s animatedWhat If…?series, which ran for three seasons between 2021 and 2024, have seriously insulted the Mad Titan. This, in turn, has made theMCU’s live-action Avengers teamlook bad, as not even they could defeat Thanos, who now looks like a weak antagonist.

Thanos on Knowhere in Avengers Infinity War

Thanos Is The MCU’s Best Villain So Far

Thanos Was The Infinity Saga’s Biggest Threat

Thanos first appeared in thepost-credits scene of 2012’sThe Avengers, which began to lay the foundations for him to become the most significant villain in the MCU’s Infinity Saga.Few villains have posed the same kind of danger that Thanos did, as the warlord sought to collect the six Infinity Stones, becoming the most powerful being in the universe, and use them to wipe out half of all life. This made him truly terrifying, especially since his reasoning kind of made sense, and he proved his salt when he was actually successful.

Thanos' Complete MCU Timeline Explained

Thanos was the major villain of the MCU’s Infinity Saga, and though he might have met his end in Endgame, his actions can still be felt in the MCU.

Aside from being an intergalactic warlord known across the universe for his heinous acts,Thanos was also a pretty despicable father.He adopted a number of children over the years during his conquest of various worlds, and raised them to be formidable warriors, known as the Black Order. Gamora and Nebula managed to break free from their father’s bounds, but the likes of Ebony Maw, Proxima Midnight, Corvus Glaive and Cull Obsidian weren’t so lucky, and they paid the price. Thanos' might seemed insurmountable in the live-action MCU, butWhat If…?has made this null.

thanos in infinity war and dead in avengers endgame

What If…? Has Insulted Thanos On Numerous Occasions

Josh Brolin’s live-action Thanos was finally defeated by Earth’s Mightiest Heroes inAvengers: Endgame, but several versions of the Mad Titan have since been introduced in Marvel Animation’sWhat If…?series. The majority ofThanos' appearances inWhat If…?, however, have included thepowerful supervillain being killed in new and often-easy ways, which continues to insult Thanos' power and make him seem much weakerthanAvengers: Infinity WarandEndgamesuggested. This happened most recently inWhat If…?season 3, episode 4.

“What If… the Avengers Assembled in 1602?”

Thor failing to kill Thanos in Avengers Infinity War

June 05, 2025

Wolverine Variant

After he was talked into being a hero and giving up his plan, turned into a zombie, sliced in half by Ultron, melted by Gamora and snapped away by Killmonger with the Infinity Stones, it seemedWhat If…?was running out of ways to belittle Thanos.What If…?season 3, however, saw Thanos feebly join the fight for possession of Howard the Duck and Darcy Lewis' egg, only for him to bekilled by Byrdie.What If…?has never treated Thanos with the respect he earned in the Infinity Saga.

What If…?’s Treatment Of Thanos Changes The Avengers’ Infinity War

The Avengers Failed To Beat Thanos In Avengers: Infinity War

If Thanos really is as weak and beatable asWhat If…?has routinely suggested, then theAvengers failing to stop him inAvengers: Infinity Wartakes on a whole new meaning. This implies the Avengers may simply not be as strong as they think, as they couldn’t even kill Thanos, whose variants are constantly in the habit of dying in weird and wild ways. Previously,Thor not going for the head was a huge deal, but now it seems as though this was sheer incompetence, and that any other Avengers team across the multiverse could have easily taken Thanos down.

This argument is also supported by the brief appearance of Thanos in 2022’sDoctor Strange in the Multiverse of Madness. TheIlluminati managed to kill Earth-838’s Mad Titanbefore he even made it to Earth, which really showed up the MCU’s official Avengers team.The fact that Thanos was easily killed by Ultron, Ronan, Gamora, Killmonger and Byrdie, who were all acting alone, makes the Avengers' combined efforts inInfinity Warseem inconsequential, which isn’t a good look for the MCU’s primary superhero team.

Thanos watching the Avengers on the battlefield in Avengers Endgame

How Marvel Can Redeem Thanos In The MCU

Thanos Could Still Have A Bright Future In The MCU

The magic of exploring the multiverse is that Marvel Studios still has the chance to redeem Thanos, as there must be universes where the Mad Titan was successful in all his endeavors. This could be proven in theRusso brothers' upcomingAvengers: DoomsdayandSecret Wars, which could bring the likes of King Thanos and more into the live-action MCU.Theories have also emerged suggesting Robert Downey Jr.’s twisted Doctor Doom may come from a reality ruled by Thanos, which would give the Mad Titan the redemption he deserves.

Robert Downey Jr’s Doctor Doom Was Created By Thanos According To Avengers: Endgame MCU Theory

There are still huge questions concerning Robert Downey Jr.’s Doctor Doom casting, and a new theory might have found the perfect answer to his return.

Thanos plays an important role in Marvel Comics’Secret Warsevent from 2015, as he fights as a member of the Cabal to destroy other Earths and stop incursions from destroying the multiverse, before then finding himself on Battleworld, ruled by God Emperor Doom. This could inspireJosh Brolin’s teased return as Thanos, but could lead to yet another death for the Mad Titan.Doctor Doom brutally kills Thanos inSecret Wars, and after his repeated deaths inWhat If…?, it wouldn’t be surprising to see this scene play out inAvengers: Secret Wars​​​​​​​, too.

Thanos in the Soul Realm in Avengers Infinity War and Doctor Doom in Marvel Comics

What If…?

Cast

What If… ? is an animated anthology series set in the Marvel Cinematic Universe which features fan-favorite characters, including Peggy Carter, T’Challa, Doctor Strange, Killmonger, Thor, and more. The new series, directed by Bryan Andrews with AC Bradley as head writer, features signature MCU action with a curious twist. The show sees Uatu the Watcher, an omnipotent being that observes the events of multiple universes from afar as they unfold, unable to interfere. However, things shift when an entity peers beyond the veil, jeopardizing the multiverse.

What If season 3 poster

Captain America- Brave New World - Poster

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Avengers 5 Concept Poster