7 Reasons Thanos Is Marvel’s Greatest Villain

7 Reasons Thanos Is Marvel’s Greatest Villain

Thanos is one of Marvel's most popular villains, but more than that, an argument can be made that Thanos is Marvel's greatest villain.

Thanos has become one of the most popular villains in the world because of his appearances in the Marvel Cinematic Universe.

Comic fans have known about how great a villain he is for decades, since his first appearance in Invincible Iron Man #55, where creator Jim Starlin made him into one of the premiere cosmic villains in the Marvel Universe.

Thanos’s nihilism and desire for ultimate power made him into an enemy for every champion of life out there, and every hero in the Marvel Universe fears and respects him.

Marvel has created some of the greatest villains ever, but there are some out there who would say that Thanos is the greatest Marvel villain.

Author summary: Thanos is Marvel's greatest villain due to his cosmic impact.

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ComicBook.com ComicBook.com — 2025-10-17