there's a # of appearances attached to each of these actors. Marvel is choosy about where to use/waste them, so they must have decided to not use one of them in this movie. I guess that's fine & for The Greater Good (Year Zero what up!), but the character of Nick Fury not getting involved in this huge fight between his handpicked team seems a bit unbelievable plot-wise.
While we're on plot issues with the movie, I think it's silly that Cap didn't bring up how Hydra infiltrated and almost took over the U.S. gov't/SHIELD from within, and almost sent nukes all over the world. So this same gov't, that was just recently take over, are the now the people that the Avengers & other powered individuals are supposed to trust with their identities and oversight? How can they possibly trust them? I feel like that's a pretty solid argument that Cap and his group could have made to defend their pov. Or did I perhaps miss a brief reference to this in the movie?