War Machine. Any Thor allies, like the warriors 3, not Sif though. Falcon.
All the sidekick type people, and maybe even bucky or Nick Fury (Life Model Decoy, as always).
Wart MAchine though, with no future Iron Man movies in development, why not kill off his supporting cast if deaths are necessary? Plus judging with how Ultron will be connected to Iron Man.. It really does make a lot of sense.