As Doomsday and Secret Wars draw nearer, MCU fans are wondering what's next for the Avengers. With over 60 years of stories, there are no shortage of villains for the MCU to pit against Earth's Mightiest Heroes next, but which should be first on the list?

Here's our pick for the ten Avengers villains the MCU should introduce next, posing unique threats to the heroes in ways they haven't already dealt with.

10 Terminus, Ravager of Worlds

First Seen in Fantastic Four #269, Created by John Byrne

Sometimes, sheer strength is all you need for a great villain. Terminus is a biological weapon created by an ancient alien species who were destroyed by the Celestials. In response, they designed Terminus - a microbe that floats through space until it finds a world rich in natural resources, absorbs as many of them as possible, and produces a giant capable of battling Celestials one-on-one.

With the Celestials gaining prominence following Captain America: Brave New World, it makes sense to introduce a living superweapon designed to kill them.

9 Father and the Descendants

First Seen in Uncanny X-Force #6, Created by Rick Remender and Esad Ribić

While mutants are hated and feared in the Marvel Universe, robots also get a terrible deal. Along comes Father - an incredibly creepy scientific genius who wants to unite all synthetic beings into the planet's dominant species.

A creepy old man in powerful armor, Father's superhuman abilities cause those around him to crave his approval. Father's creations include his personal guard of Descendants - a group of robots who can mimic the powers of those around them in unique ways:

• The Urn - A robotic man who can absorb and store the souls of his victims, gaining their skills
• The Swine - A robotic man with enhanced reflexes and claws who can manifest the opposite power to his victims
• The Origin - A robotic woman who can produce tiny versions of those around her, complete with their powers

Ultimately, Father was able to gather and control almost every synthetic being in the Marvel Universe, creating a gigantic army of androids, robots and artificial intelligences, opposed by the Secret Avengers.

The MCU has introduced plenty of synthetic beings and AI at this point, so assembling them into an army would be an amazing. It could also pay off the tease of the original Human Torch from Captain America: The First Avengers, who played a huge part in defeating the robot army.

8 Korvac, aka Michael Korvac

First Seen in Giant-Size Defenders #3, Created by Steve Gerber, Len Wein and Jim Starlin

Korvac is one of the Avengers' most powerful villains, but also one of the most neglected. A human from the far future, Korvac worked for the sinister alien species known as the Badoon, who turned him into a cyborg against his will. He later infiltrated Galactus' spaceship and stole the villain's cosmic power, basically becoming a god.

At his strongest, Korvac can warp reality however he wants, however his traumatic past has left him desperate to be loved and worshiped. This desperation to prove his godhood stops him from killing his rivals outright, creating opportunities to shut him down.

7 The Squadron Supreme, Including Hyperion, Power Princess and Doctor Spectrum

First Seen in Avengers #85, Created by Roy Thomas and John Buscema

Marvel's pastiche of DC's Justice League have taken on a life of their own over the years, becoming fascistic heroes who believe that the world is better off under their leadership. Major members of the team include:

• Hyperion - A superstrong hero who can shatter planets with a punch.
• Doctor Spectrum - Wielder of the power prism, which can form powerful energy constructs.
• The Blur - A speedster who is potentially the fastest being alive.

Civil War made the concept of superhuman responsibility a big part of MCU lore, so a group of villains who think superhumans should rule the world would be a fitting challenge for the Avengers.

6 Red Widow and the Winter Guard

First Seen in Iron Man Volume 3 #9, Created by Kurt Busiek and Sean Chen

Russia's national superteam are generally portrayed as villains in Marvel lore, despite including a few genuine heroes like Darkstar and Red Guardian. Under the leadership of Red Widow (a graduate of the same Red Room program that created Black Widow), they became even more vicious, recruiting members who replicated the Avengers' powers, such as the storm god Perun, the robotic Vostok and the monstrous Chernobog.

With the Red Room firmly established in the MCU, all the Winter Guard need to debut is a scary leader to rally behind, and the cybernetically enhanced Red Widow (created by Jason Aaron and David Marquez) fits the bill.

5 The Exemplars

First Seen in Iron Man Volume 3 #21, Created by Kurt Busiek, Roger Stern and Sean Chen

Fans of the Juggernaut know that the unstoppable antihero draws power from the demon god Cyttorak. However, they may not know that Cyttorak is just one member of the Octessence - a group of eight eldritch gods who each have a champion on Earth.

These champions, known as the Exemplars, are charged with battling to decide which of the Octessence is strongest, at which point Earth becomes their sole dominion. This formula makes for a team defined by variety, where the villains hate each other as much as the heroes who try to stop them. Members include:

• Stonecutter - The Exemplar of Raggadorr, can construct devices from raw materials with a thought
• Decay - The Exemplar of Valtorr, causes living things to rot and die with a touch
• Carnivore - The Exemplar of Farallah, possesses an animalistic physiology

4 Morgan Le Fay​​​​

First Seen in Black Knight #1, Created by Stan Lee and Joe Maneely

An ancient sorcerer of Arthurian myth, Morgan Le Fay has links to the Black Knight and trained Doctor Doom in the mystic arts. Arrogant, deceitful and cruel, Morgan attacks with armies of demons, dragons or the undead, and once altered the modern day into a Medieval kingdom, including giving the Avengers new costumes and backstories. She'd bring a sword and sorcery vibe to the MCU that the Avengers have yet to encounter.

3 The Revengers

First Seen in New Avengers Annual Volume 2 #1, Created by Gabriele Dell'otto and Brian Michael Bendis

A group of former heroes with personal grudges against the Avengers, the Revengers were led by Wonder Man during a period when his ionic powers were out of balance. An excuse to bring back some deep-cut characters, the Revengers have deeply personal grudges against the Avengers, manifesting the team's mistakes as a physical threat.

There have been multiple versions of the Revengers, but the team ultimately exists solely to take retribution on the Avengers, making for a particularly proactive threat. Members include:

• Virtue - A Superman-like Skrull who hates the Avengers for their handling of the Kree/Skrull conflict
• Captain Ultra - An intangible superhuman with a sonic scream who felt dismissed by the superhero A-list
• Goliath - A size-changing hero whose uncle was killed during the events of Civil War

2 The Super-Adaptoid

First Seen in Tales of Suspense #82, Created by Stan Lee and Jack Kirby

The Super-Adaptoid is a powerful robot which mimics the powers of any superhuman in its vicinity. Originally built to destroy the Avengers, the Super-Adaptoid often reverts to this foundational programming. While its motivations aren't exactly fascinating, watching the Avengers take on a villain with all their powers is always fun, and the Super-Adaptoid would make a great enforcer for a more motivated villain.

1 The Masters of Evil

Introduced in Avengers #6, Created by Stan Lee and Jack Kirby

How have the Avengers existed for over a decade in the MCU without fighting their opposite number? The Masters of Evil are a team of villains (usually led by Baron Zemo) drawn from the lore of the Avengers' respective members: Thor villains Enchantress and the Radioactive Man, Iron Man foe the Melter and Ant-Man enemy the Black Knight.

The Masters of Evil are sometimes depicted as a squad of hand-picked villains and sometimes as an army made up of every evil-doer Zemo could get ahold of. With Zemo still around in the MCU, Marvel has an opportunity to do the Masters of Evil right, by reaching back through prior films and bringing back villains who have been forgotten - who doesn't want to see Justin Hammer, Kurse and Baron Mordo take on the Avengers?

Those are the 10 Avengers villains we think the MCU should adapt next - let us know in the comments what you think of our picks, and which villains you want to see on the big screen.

While Robert Downey Jr.’s Iron Man is the heart and soul of the MCU, Marvel Studios barely explored his long list of villains. Loki, Baron Zemo, and Thanos all had incredible dynamics with Tony Stark, but none of them had an exclusive link to Stark. Across three solo films and multiple Avengers outings, Robert Downey Jr.'s Iron Man rarely faced his comic book foes.

Other Marvel heroes beat Iron Man to a rich rogues gallery. However, that doesn’t mean Tony Stark lacks memorable enemies. Since Kevin Feige has confirmed that the MCU will eventually reboot figures as central as Steve Rogers and Tony Stark, a rebooted Iron Man could finally face the foes that RDJ’s version never had the chance to.

10 Crimson Dynamo

Iron Man's Russian Counterpart

Early drafts of Jon Favreau's Iron Man featured Crimson Dynamo as Tony’s first antagonist before pivoting to Obadiah Stane a.k.a. Iron Monger. After that, Crimson Dynamo only appeared in the Iron Man 2 video game, where he exploits Stark Industries tech. In the comics, Crimson Dynamo repeatedly challenges Tony Stark with similar technology to Iron Man.

Crimson Dynamo remains the quintessential entry-level armored foil to Iron Man. Over twelve years after the MCU's armor-vs-armor action scene, the MCU’s next Tony Stark needs another visually striking, tech-focused battle. A Dynamo matchup would bring Iron Man-focused spectacle back to the fore, potentially with a side of political intrigue.

9 Blizzard

Recurring Iron Man Enemies With Cryogenic Powers

Blizzard may not be Iron Man’s flashiest villain, but he’s been a persistent thorn in Tony Stark’s side since Tales of Suspense #45. Originally Jack Frost, Blizzard wields cryogenic technology capable of generating blizzards, freezing opponents, and damaging Stark's tech. In the comics, Blizzard is often portrayed as a working-class criminal who weaponizes Stark’s own inventions against him.

The Donnie Gill version of Blizzard was introduced in Agents of SHIELD, played by Dylan Minnette. Unfortunately, this Blizzard never wore a costume and was killed off before he met Tony Stark. When the MCU inevitably introduces a new Iron Man, Blizzard’s street-level roots would make him an ideal antagonist before Stark faces higher-level threats.

8 The Living Laser

Intangible Supervillain Arthur Parks

The Living Laser, introduced in Avengers #34, is one of Iron Man’s most underrated villains. His powers transform him into a near-immortal being made of pure energy. Iron Man 2 didn't do Whiplash’s electric abilities justice, and The Amazing Spider-Man 2’s Electro was bogged down by a messy script. With careful handling, the Living Laser could be the most destructive energy-based live-action supervillain.

In the MCU, the Living Laser could be more than just another villain of the week. Arthur Parks' electric abilities could make him a recurring challenge for multiple heroes, including Iron Man, Vision, and Yahya Abdul-Mateen II's Wonder Man, all of whom have fought him in the comics. Of all Iron Man villains, the Living Laser has the most potential to be visually unique.

7 Spymaster

Multiple Conspirators Who Become A Thorn On Tony Stark's Side

Spymaster is a name carried by several different operatives in Marvel Comics, all masters of espionage and infiltration. First introduced in Iron Man #33, Spymaster has repeatedly sabotaged Stark Industries from the shadows. Spymaster played a major role in the Armor Wars storyline, where he exposed Stark’s inventions to rival corporations and villains.

Since the MCU's Armor Wars will probably arrive after the Multiverse Saga, Spymaster could make his debut as the next Iron Man's main antagonist. The MCU’s version of Spymaster could thrive as a blend of familiar antagonists' traits: Vulture's targeted attacks, Mysterio's treachery, and Ghost's stealth. On that note, Ghost is originally an Iron Man villain, but Hannah John-Kamen's Ava Starr is unlikely to return to her antagonistic roots after Thunderbolts*.

6 Iron Man 2020

Tony Stark's Brother Arno Stark

A rebooted Tony Stark would also open the door to Tony’s extended family. In the comics, Arno Stark and the original Morgan Stark both have tangled legacies tied to Stark Industries and the Iron Man mantle. Arno is best known for donning the Iron Man 2020 armor; a bulkier version of Tony’s suit. Arno's arrival pits Iron Man against a darker, corporate-driven version of himself.

With the Multiverse Saga already playing heavily with alternate timelines and realities, Arno Stark’s presence in the MCU feels almost inevitable. Arno would be the new Tony Stark's own version of an evil Iron Man. Since 2020 is no longer the future, the MCU could update Arno Stark's codename to something more fitting.

5 Ezekiel Stane

Obadiah Stane's Son

While the Multiverse Saga may reboot major characters like Iron Man, Ezekiel Stane’s path doesn’t need much changing. In the comics, Zeke is Obadiah Stane's son, who inherits his father’s brilliance and fights Iron Man with cutting-edge biotech instead of regular armor. Zeke's enhancements make him even deadlier than the Iron Monger.

Alden Ehrenreich’s Zeke Stane is only beginning his villainous journey in the MCU. A continuation of his arc could see him evolve into a true heir of his father’s legacy. Apart from a rematch with Dominique Thorne’s Ironheart, Zeke Stane’s biotech-powered body would make him an exceptional adversary for a rebooted Tony Stark.

4 Madame Masque

Leader Of The Maggia Giulietta Nefaria

Madame Masque is a brilliant strategist, combatant, and crime boss, torn between her criminal family heritage and her own quest for power. Like Doctor Doom, she permanently hides her scarred face behind a mask. While Agent Carter technically remains canon in the current MCU timeline, a soft reboot could allow a fresh version of Madame Masque to be active in the present day.

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Bringing Madame Masque into the rebooted MCU would provide Iron Man with a long-term adversary who can pull the strings of organized crime in the background. Unlike other armored villains, Madame Masque could torment Iron Man with carefully planned conspiracies. More than twelve years later, a new Captain America: The Winter Soldier would be welcome.

3 MODOK

AIM Mastermind George Tarleton

A frequent enemy of multiple heroes, MODOK has repeatedly fought Captain America, the Hulk, and Iron Man, often embodying the worst mix of unhinged genius and a hunger for violence. MODOK's bizarre design and terrifying intellect make him a uniquely unsettling foe. More importantly, MODOK's tech-based powers are a perfect match for Iron Man's.

MODOK’s MCU debut in Ant-Man and the Wasp: Quantumania fell flat. A rebooted MODOK, truer to his comic roots, could become a central antagonist all by himself. Instead of Darren Cross, George Tarleton could be introduced as a frenzied AIM mastermind capable of clashing with each of the Avengers.

2 Fin Fang Foom

The Towering Makluan Kaiju

Fin Fang Foom is one of the biggest Marvel villains not to grace the screen. The mystical dragon has been a recurring Marvel monster since the Silver Age. After Shang-Chi and the Legend of the Ten Rings introduced the Great Protector and the realm of Ta-Lo, the MCU has already laid the groundwork for Fin Fang Foom's arrival.

Still, debuting Fin Fang Foom without an Iron Man to face him would be a wasted opportunity. Unlike Robert Downey Jr.'s portrayal, a rebooted Tony Stark could fight a fully mystical villain in a solo Iron Man movie. All the Marvel lore and VFX quality needed to do Fin Fang Foom justice already exists.

1 The Mandarin

Iron Man's Lifelong Archnemesis

Without a doubt, the Mandarin is Iron Man’s most important comic book enemy. Since the 1960s, their feud has defined Iron Man’s comic evolution, standing alongside rivalries like Spider-Man and Green Goblin or Thor and Loki. Simply put, no villain tests Iron Man’s spirit and ingenuity more than the Mandarin.

In the MCU, the Mandarin was fractured into multiple pieces. Iron Man 3 introduced Trevor Slattery’s fake Mandarin, while Aldrich Killian claimed to be the real one. Then, Shang-Chi and the Legend of The Ten Rings made Xu Wenwu a Shang-Chi villain. An MCU soft-reboot could bring together a living Xu Wenwu with a new Iron Man, finally telling the definitive Mandarin vs. Iron Man feud that the MCU has yet to deliver.

Captain America was one of the three main pillars of the MCU during its height of popularity, alongside Thor and Iron Man. Despite that, the MCU barely tapped into a fraction of Captain America's greatest comic book moments.

To be fair, Captain America was created in 1940, making him one of the oldest comic book characters in history. That's a lot of stories that the MCU didn't have time to adapt, nor could it fit every one of his adventures into the established universe the MCU was creating.

Even though the MCU might not have been able to adapt every one of Captain America's many stories, there are a few good ones it missed. However, with Steve Rogers reportedly coming back to the MCU, Marvel still has a chance.

Here are 10 of the best Captain America moments the MCU movies never got to.

Captain America Creates the Uncanny Avengers

When Orchis destroyed Krakoa and set in motion a chain of events that made being a mutant essentially illegal around the world, Captain America felt ashamed that he and the Avengers didn't do more to help the mutants. So, to remedy that, Captain America creates the Uncanny Avengers.

The Uncanny Avengers, also known as the Avengers Unity Division, consisted of both mutant and non-mutant superheroes, all working together to defeat Orchis and liberate mutantkind. Since mutants didn't exist in the MCU with Captain America, movie fans missed out on this.

However, since Steve Rogers' Captain America is allegedly returning to the MCU in Avengers: Doomsday and/or Avengers: Secret Wars, it's not too late for the MCU to bring this storyline to life.

Captain America 'Transforms' Into Hydra Supreme

While Avengers: Endgame did show Captain America uttering the infamous words, "Hail Hydra", that was more of an homage to Secret Empire than a full-on adaptation. And it's a shame that that's all fans got, as they missed out on seeing Steve Rogers 'transform' into Hydra Supreme.

Secret Empire showed Captain America's descent into villainy, which proved to be one of the most polarizing moments in comic book history. Sure, the original Steve Rogers wasn't actually breaking bad, as it was an evil variant, but that wasn't made clear until close to the end of the story.

It's a shame that MCU fans missed out on the shock and horror of seeing Captain America become a vile villain on screen when the films didn't adapt Secret Empire.

Captain America Revealing His Real Birthday

For decades, fans believed Steve Rogers was actually born on the Fourth of July, sharing his birthday with that of America itself. However, it's revealed in Captain America Vol. 11 that that was just a bit of American propaganda during WWII, and that his real birthday is September 28.

The MCU never clarified Captain America's real birthday. While that seems like an innocuous detail, it actually helps humanize Steve Rogers.

Steve isn't supposed to be some 'larger-than-life' person; he represents the best in everyone. Captain America's existence proves that anyone can be a hero, so long as they choose to be good, rather than being some weird American 'chosen one'. And the MCU never even touched on that.

Captain America Becomes a Werewolf

In Captain America #402-408, Steve Rogers gets transformed into a werewolf. A mad scientist is obsessed with creating the ultimate 'werewolf' creature, and decides that Captain America is the best subject. After secretly administering the 'werewolf serum', fans get four glorious issues of "Capwolf".

"Capwolf" is certainly an odd period in Captain America's comic book history, but undoubtedly a fun one, and it's something that MCU fans will likely never experience.

Captain America Turns Into Cap-Snake

Similar to the aforementioned Capwolf, Captain America was once transformed into a serpent-like creature, dubbed Cap-Snake, by the Serpent Society. This happened in Avengers Assemble #4, when the Avengers Emergency Response Division was fighting the Serpent Society, and things went horribly wrong.

The Serpent Society gassed Captain America with a toxin that mutated him into an anthropomorphic snake-like creature. Cap suddenly became a cold-blooded villain controlled by the Serpent Society, which immediately gave this B-list super-villain team some credibility.

The Serpent Society made a few brief appearances in the MCU in Captain America: Brave New World and Luke Cage, but MCU fans were still robbed of seeing Cap-Snake brought to life.

Captain America Teaming Up With Black Widow and Wolverine

One of the most incredible storylines in Marvel Comics history was told in Chris Claremont's Wolverine: Madripoor Knights. It follows Wolverine, Black Widow, and Captain America working together in Madripoor to take down a faction of the villainous ninja clan known as The Hand.

This trio is a true force to be reckoned with, highlighting the parts of Captain America that are deceptive, hardcore, and simply badass.

Captain America is portrayed as a Boy Scout a bit too often in the MCU, but pairing him with Black Widow and Wolverine showed fans that there's more to him than meets the eye, and MCU fans never got to experience this fantastic story on the big screen.

Captain America's Death

Civil War is one of the most impactful comic books in Marvel's history. While the MCU adapted it into Captain America: Civil War, it left out perhaps the most significant part: Captain America's death. Steve Rogers was assassinated at the end of Civil War following his loss to Iron Man.

Sure, the MCU showed Steve Rogers as an old man passing the torch of Captain America to Sam Wilson, but they never experienced the shock and horror of witnessing him being killed. It's a moment that would have rocked movie fans to their core, and the MCU totally missed it.

Captain America Teaming Up with Daredevil

Captain America and Daredevil have only teamed up in Marvel Comics a couple of times (the first being in Captain America #235-236), and while their team-ups weren't the most spectacular things in the world, it's still a shame that Steve Rogers and Matt Murdock never joined forces in the MCU.

Daredevil's popularity skyrocketed with his live-action debut, but the Man Without Fear didn't officially become a part of the MCU until after Steve Rogers retired as Captain America. While they could potentially partner up in the future, it seems the MCU missed its chance to bring these fan-favorite heroes together.

Captain America Beating the Hulk

Although Captain America and the Hulk have shared a significant amount of screen time in the MCU, the films have never depicted them fighting one-on-one. However, in Fallen Son: The Death of Captain America #4, it's revealed that Captain America has battled and, indeed, beaten the Hulk.

Their fight is shown through a memory Spider-Man recalls during his battle against Rhino, which depicts Captain America using his superior fighting skills to defeat the Hulk with nothing more than his shield and fists. That's a fight MCU fans deserve to see.

Captain America Fighting in WWII with Wolverine

The MCU's Captain America: The First Avenger captured Captain America's time fighting in World War II, but it didn't have one fan-favorite character in particular: Wolverine. Wolverine: Origins went into their time together during the war, as did an episode of X-Men: The Animated Series, but not in the MCU.

Again, with Captain America's apparent MCU return and the potential for a prequel film once the X-Men enter the MCU proper, this live-action storyline may still be on the table. But, as of now, it's just one of the many Captain America stories the MCU movies never got to.