In the post-credits scene of the Avengers movie, we are shown a face who is presumably recognizable. Who's is it? All answers in spoiler tags please, for those who have not seen the movie.
Two of my friends (who are much more up with Marvel than I) said:
It was Thanos ( http://marvel.com/universe/Thanos ). Which makes sense as he's had a few fights against the Avengers according to the wiki.
I think it's pretty much
They're one of the baddest villains in the Marvel galaxy, i.e. Secret Invasion, etc. It was said that there was a possibility of them being the main villains in the Avengers film but it was denied by the people in Avengers. It was a great easter egg — I screamed when I saw it in the cinema.