Who Created Galactus?

Galactus is a fictional character appearing in American comic books published by Marvel Comics. Formerly a mortal man, Galactus is a cosmic entity who consumes planets to sustain his life force, and serves a functional role in the upkeep of the primary Marvel continuity.

How Galactus was created?

Galactus's initial origin was that of a space explorer named Galan who gained cosmic abilities by passing near a star, but writer Mark Gruenwald further developed the origin of the character, revealing that Galan lived during the previous universe that existed prior to the Big Bang which began the current universe.

Who built Galactus?

Galactus was created by Stan Lee and Jack Kirby and first appeared in the comic book Fantastic Four #48, published in March 1966.