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15 Marvel Aliens That Are Way Too Weird For The MCU

Updated August 12, 2020 906 votes 188 voters 10.4k views15 items

List RulesVote up the Marvel aliens that are cool, but still too strange to work in the MCU.

In many ways, Guardians of the Galaxy has been Marvel’s most surprisingly successful film. While most comic book properties are inherently fantastic and a more than a bit weird, Guardians moved things in a truly bizarre direction. The movie takes place almost entirely in outer space, and the main cast are constantly surrounded by wacky and wild alien races. In fact, four of the film’s protagonists are freaky aliens themselves, ranging from green-skinned humanoid to anthropomorphic trash panda. 

That being said, there are dozens of fictional alien races to play with in the Marvel universe, and some are so weird that they definitely won’t appear in The EternalsGuardians of the Galaxy Vol. 3, or any other corner of the MCU's cosmos. A few of the potential candidates are too visually bizarre to work on the silver screen, while others have traits that could only ever translate as straight-up goofy. The success of Guardians definitely broadened the potential types of stories that Marvel can get away with telling, but they’re not yet ready to explore the deepest and darkest corners of their fictional galaxy.

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    Marvel was definitely horsing around when it created the Kymellians, a race of equine-headed but extremely intelligent aliens. Like their Earth-bound look-alikes, Kymellians are very friendly to humans, and have aided several heroic factions in the past, most notably the Power Pack and Fantastic Four.

    Ridiculous facial features aside, the Kymellians are a proud and noble race that always seem to fall on the side of good. That being said, it still had to be slightly embarrassing when Inhuman king Black Bolt had to take one as his bride in a political move.  

    Too weird for the MCU?
  • 6

    Space Phantoms

    The Space Phantoms are one of the first alien races to plague the Marvel universe, as one showed up to torment the Avengers almost immediately after their publication. Space Phantoms are hideous little bug-eyed goblins, but their physical appearance is unimportant given their powers.

    These creepy fellas have the ability to switch places with any individual, sending their victim to an alternate dimension while they gain their appearance and powers. The first Space Phantom used his power to impersonate the Hulk, which led to the jade giant quitting the Avengers when he saw how little they trusted him. 

    Too weird for the MCU?
  • 7

    The Builders

    The Builders were a race at the center of an Avengers story that was built up for years and culminated in the celebrated Infinity crossover. Basically, they are the beings responsible for the structure of Marvel’s multiverse. They’ve existed since the dawn of time, sending out various probes to create and monitor life on other planets.

    The Builders are insectile in appearance and eventually decide that Earth must be destroyed to save the rest of the multiverse, although the Avengers eventually stop them (oh, and save the rest of existence too). 

    Too weird for the MCU?
  • 8


    Mojo is one of those characters that many fans enjoy, but is still super, super gross. He’s an alien from another dimension, one in which he manipulates the lives of heroes and villains for the purposes of creating reality television.

    Mojo is disgustingly obese, has jaundiced skin, and moves around via a set of robotic, insect-like legs, all of which combines for a very visually unappealing appearance. Mojo’s behavior doesn’t make him anymore likeable, and he provides a pretty stark image of what some Marvel creators must have thought about Hollywood producers back in the day.

    Too weird for the MCU?