User blog comment:Kate.moon/Who Are The Avengers Villains/@comment-4973477-20120331034930


 * Spoiler Alert*****

I believe that the beings in Loki's army are the Dark Elves from Svartalfheim. There is a picture in the gallery for the Dark Elves here that show features similar to the creature in the close up in the latest trailer.

http://marvel.wikia.com/Dark_Elves