Galactus

Galactus is a cosmic entity in the Marvel Universe, often referred to as the Devourer of Worlds. He is not merely a villain but a god-like being who consumes planets to sustain his existence, embodying themes of entropy and the insignificance of humanity in the face of cosmic forces. His character represents a force of nature that is indifferent to the struggles of mortals, and his presence in 'The Fantastic Four: First Steps' reintroduces him as a formidable cosmic threat with a Lovecraftian essence.