Marvel Entertainment
This Hulk villain already appeared in The Incredible Hulk, so he’s less likely to turn up in Avengers 5. However, with Thunderbolt Ross set to return in Black Widow, the chances are higher for the Abomination’s triumphant return.
Marvel Comics
Actress Carrie Coon says her character, one of Thanos's adopted daughters, could have her own movie. It was mostly a joke, but perhaps the Black Order at large could come back with a vengeance.
Marvel Entertainment
Jeff Goldblum's star turn in Thor: Ragnarok already gave this character his moment in the spotlight, but a comics run involving his daughter and a rivalry is begging for the Avengers movie treatment.
Marvel Comics
Marvel's answer to Aquaman is this King of the Sea, but Namor doesn't play by anyone's rules. He's an antihero, so while it's possible he may be the villain in Avengers 5, he may be a hero as well.
Marvel Comics
A conniving mythical sorceress like Morgan le Fay would prove quite the foe, but she's already appeared in Hulu's Runaways. Could the multiverse bring a new version of the legendary witch?
Marvel Comics
Curtiss Jackson, aka Power Broker, is a slimy CEO who augments his body to mutate himself into a muscular titan. He's not galactic like Thanos, but maybe its time for a more terrestrial villain.
Marvel Comics
This big bad describes himself as the “living death” and he really is. The supervillain can manipulate molecules and, paired with his tyrannical tendencies, is perhaps more of a formidable and destructive foe than Thanos.
Marvel Comics
With the ability to transport heroes and villains to a whole other planet and have them battle each other, Beyonder is the instigator of the “Secret Wars” comics storyline and a pretty powerful menace. Let Marvel’s multiverse collide.
Marvel Comics
This comics villain isn't exactly evil, his just main source of food happens to be planets. Galactus still posed a terrifying threat to the Fantastic Four, meaning he could incorporate them into the MCU.
Marvel Comics
This big-headed villain is one of Marvel’s weirdest. In short, he wants revenge on metahumans and world domination. His advanced intelligence and egotistical scheming make him a fun, yet formidable foe.
Marvel Comics
We've already seen a Celestial in the MCU thanks to Ego, but these ancient figures are the next logical step from Thanos, plus they're bound to make an appearance in the upcoming Eternals.
Marvel Comics
This amalgamation of Professor Xavier and Magneto’s subconscious is what villainous dreams are made of. Onslaught is not only a powerful, intelligent mutant, but he’s battled both the X-Men and the Avengers and could finally bring them together onscreen.
Marvel Comics
Now that time travel is part of the MCU, this time-traveling classic villain seems to be the logical choice for Avengers 5, and could mean the Avengers will not only have to protect their planet, but their time.