Thanos
Thanos is a Titanian Eternal obsessed with balance, often seeking the Infinity Stones to erase half of all life. He is one of the most recognized big villains in Marvel, appearing across comics and the Marvel Cinematic Universe.
Doctor Doom
Doctor Doom is the ruler of Latveria and a frequent adversary of the Fantastic Four. A genius in science and magic, he seeks global domination and often clashes with Earth's heroes.
Magneto
Magneto is a powerful mutant who can control magnetic fields. He is a complex antagonist who frequently defends mutantkind, sometimes as an enemy and sometimes as a reluctant ally to the X-Men.
For more details on major Marvel antagonists, see the Marvel Database at Marvel Villains Database.
