So you're asking me. [ He doesn't mind so much, he'll tell it like it is, but Steve probably has his reasons to keep things back and he's wary of that to an extent. ]

I'm not sure whether or not his origin is important, but he's from Asgard, adopted brother to Thor, or at least he was until he turned on them and got himself killed. Except that he didn't. [ He's speaking as though he's picking information from a file and spurting it back, no real emotion there, voice hard and revealing little. ] SHIELD were experimenting on the cube, apparently using it to create weapons to defend the earth from future attacks, until the thing opened up a doorway and dragged him in. He...turned several agents and took the cube in order to bring forth an army. [ He shrugs. ] He made a mess, but we kicked his ass.