Galactus
Fantastic Four #48 · 1966
He eats planets to survive and requires universe-ending weaponry to inconvenience. Nothing else on this list operates as a routine extinction event.
Power rankings across different fictional universes are always arguments rather than facts, so we set one rule: we measure what the character has demonstrably done inside their own story, not what a fan theory says they could do. A villain who has destroyed a planet on screen outranks one who has been described as capable of it. Scale matters, but so does consistency.
How this list was scored. We ranked on demonstrated feats (50%), scale of the threat they can produce unaided (30%) and durability or difficulty of removal (20%). Equipment counts if the character reliably has it.
Media mix: Comics (6), Anime (4), Video games (3), Animation (2), TV (2), Film (2), Literature (1).
Fantastic Four #48 · 1966
He eats planets to survive and requires universe-ending weaponry to inconvenience. Nothing else on this list operates as a routine extinction event.
Iron Man #55 · 1973
With the full gauntlet he erased half of all life in the universe by closing his hand. Even without it he physically outmatches nearly everyone here.
Superman's Pal Jimmy Olsen #134 · 1970
Eye beams that track their target across space, near-total invulnerability, and an army numbering in the billions. He is a god who happens to also be a dictator.

His power is distributed into an object, which means he cannot be killed conventionally while it exists. Armies and corruption are secondary tools.

He rewrote the physical laws of a region for fun. The only reason he ranks below the cosmic tier is that his reach stayed local by choice.

Summons a meteor at his own planet and manipulates people's minds across continents. He is also the physically strongest character in his story by a wide margin.

Flight, heat vision and effective invulnerability in a setting with no magic, no cosmic beings and nothing that can meaningfully stop him.

He destroys inhabited planets as a business practice, and he does it without ever training a day in his life.

A thousand years old, capable of killing any of his creations with a thought, and effectively unkillable outside a very specific window of sunlight.

Every casualty on either side becomes his soldier, which makes conventional warfare against him mathematically impossible.

He holds a fragment of divine power and has conquered the kingdom outright more than once before the story even begins.

Command of an entire continent of undead plus a runeblade that steals the souls of everything it kills.

A demon prince with a real army, real political legitimacy and a personal combat record that includes killing things gods made.

Not the strongest being here, but the single most efficient. He kills without moving and commands a fleet capable of destroying planets.

Vampiric immortality and the ability to stop time entirely. On a purely tactical level almost nobody on this list can survive that combination.

He controls magnetic fields, which in a modern industrial civilization means he controls almost everything. He has lifted stadiums and stopped bullets mid-flight.

Adamantium construction, mind control and the ability to transmit himself into any sufficiently advanced machine. Killing him has never once been permanent.

During a comet he can burn a continent, and the series treats that not as a boast but as an active plan already in motion.

Powered armor, mastery of both engineering and sorcery, and a nation's industrial base behind him. He has held cosmic-level power more than once.

He ranks here rather than higher because his true weapon is political, but the raw Force ability alone puts him above almost every human villain in fiction.
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