Okay Marvel nerds, let’s get into it. When we saw Marvel movies, we have seen villains who made heroes look like they were winging it. I’m talking about the villains who absolutely destroyed and wrecked planets and timelines. I was obsessed with Marvel since I was like 10. I used to hide X-Men comics under my bed, so here I’m making this list of the 15 baddest Marvel villains who have turned the universe upside down. Let’s go !
1. Thanos
You can call him the Mad Titan. Snapping half of the universe in Avengers: Infinity War and Endgame is straight-up iconic. Even without the Infinity Stones, Thanos is a beast, smart and ruthless. And you know what’s interesting? He’s weirdly in love with Death. Like, who dates a skeleton goddess? Wild, right?
2. Galactus
Galactus doesn’t even try to be evil — he’s just born like that. A giant who munches planets like they’re chips. The Fantastic Four could barely handle him. Fantastic Four — from this, I remembered about the Fantastic Four movie releasing this year, 2025. I’m so hyped for this!
3. Annihilus
This bug dude from the Negative Zone is straight-up terrifying as hell. His Annihilation Wave in 2006 wiped out galaxies like it was nothing, making him one of the baddest villains on the list.
4. Doctor Doom
Doom is my favourite — I would say my No.1 favourite. Hands down to the genius sorcerer king of Latveria. This man’s got it all. I’m obsessed with his drama with Reed Richards. But in Secret Wars from 2015, he basically became God.
5. Kang the Conqueror
Kang is a time-travelling mess, conquering timelines with 31st-century tech. Insane, right? We saw him in Loki and Ant-Man: Quantumania, but the comic version is wild. Fifty variants — when I read that, my head hurt.
6.Ultron
Ultron looked at humans and went like a newborn baby, but the fact that he can upload himself anywhere means he can be a problem in the future for upcoming heroes.
7. Dormammu
Flaming head and boss of the Dark Dimension, Dormammu is a nightmare. His fight with Doctor Strange in 2016 was so cool.
8. Mephisto
Marvel’s devil is a sneaky jerk. He’s been messing with heroes since Silver Surfer, but ruining Spider-Man’s marriage made me so mad. 2025 rumours say he might pop up in Agatha: All Along Season 2. I’m scared but also kinda excited.
9. Loki
Everyone’s favourite trickster, Loki is not the strongest, but he’s so sneaky with his magic. Betraying Asgard, messing with the TVA in Loki—he’s always up to something. Tom Hiddleston makes him lovable, but comic look? Don’t ask me—it’s cold-blooded.
10. Magneto
You can say that Magneto is the coolest villain ever. He can tear cities apart with magnetism, like in X-Men: Apocalypse, but he’s fighting for mutants, like for his own people, so I feel him.
11. Apocalypse
This old mutant lives for survival of the fittest. He’s got celestial tech and a body that won’t quit. Age of Apocalypse was a fever dream. He’s been quiet in 2025 comics, but I’m waiting for him to pop off.
12. The Beyonder
The Beyonder’s a literal god who got bored, so he started Secret Wars for kicks. He has the power to rewrite reality like it’s a doodle. Not around much now, but a scary thought.
13. Onslaught
Professor X and Magneto’s dark side had a baby, and it’s Onslaught. In the 1996 Onslaught story, he almost ended the Avengers and X-Men with his psychic powers. Glad he’s gone for now—I can’t handle that.
14. Red Skull
Cap’s worst enemy is just evil, period. Red Skull’s all about hate and schemes. Like in Captain America: Steve Rogers, he flipped everything upside down. With Captain America: Brave New World out in 2025, I wonder if he’ll show up again.
15. Gorr the God Butcher
Gorr wants to kill all gods, and with the All-Black Necrosword, he almost did in Thor: God of Thunder. His backstory’s so sad—it hits hard. Thor: Love and Thunder didn’t do him right, but the cosmics? Chef’s kiss.
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Why They’re the Best and Worst
These villains aren’t just bad—they’ve got depth.