Thanos () is a supervillain appearing in American comic books published by Marvel Comics. Created by writer-artist Jim Starlin, the character first appeared in The Invincible Iron Man #55 (cover date February 1973). An Eternal–Deviant warlord from the moon Titan, Thanos is regarded as one of the most powerful beings in the Marvel Universe. He has clashed with many heroes including the Avengers, the Guardians of the Galaxy, the Fantastic Four, and the X-Men. In creating Thanos, Starlin drew inspiration from Jack Kirby's New Gods series for DC Comics, particularly the character of Darkseid.
https://en.wikipedia.org/wiki/Thanos