Galactus

Galactus' History
The entity now known as Galactus began life as Galan of Taa, a space explorer who lived in the universe existing before this one. During the end of this universe, Galan was contacted by the Universal Sentience, which told him that both would die, but a joint heir would survive them into the next universe. The Sentience gave Galan its power, which gestated within him for countless billions of years. Eventually, this gestation ended, and Galactus was born. Galactus now roams the universe, consuming the life-forces of worlds for his own survival. Although some may see Galactus' actions as cruel, in truth, Galactus is above the concepts of "good" or "evil", more akin to a natural force like a hurricane or earthquake.