Galactus is a fictional character, a cosmic entity appearing in comic books and other publications by Marvel Comics. In his first appearance in The Fantastic Four, Galactus was depicted as a god-like figure which feeds by draining living planets of their energy. After appearing in the Silver Age of Comic Books, Galactus has appeared in over four decades of Marvel continuity, the one-shot publication Super-Villain Classics: Galactus the Origin #1 (May 1983) and the limited series Galactus the Devourer (September 1999–March 2000).