Marvel fans know exactly who Thanos is. He is the villain in Avengers: Infinity War, a brooding force that inspired tons of memes when he wiped out half the universe with the snap of a finger. Needless to say, he's not a nice guy and Netflix doesn't seem to think so either. In their latest description of the movie, the streaming service calls Thanos an "Intergalactic Sociopath," which had Marvel fans taking to Twitter to comment on the shade.