3. Martin Freeman "Feels Like Henry Gyrich"
The trailer introduced two new characters in the shape of General Ross (okay, so maybe not all that new) and Martin Freeman's mysterious government man. There were some suggestions that he could be playing Everett Ross, Black Panther's US escort but according to the Reddit revelations, Freeman's character is "much more like a Henry Gyrich than an Everett Ross". Given the governmental meddling in the Avengers (the Accords), it would make sense that Freeman is playing a Gyrich-like figure: an auditor who closely monitors the first mission to Lagos and reports back on what goes wrong to the government, recommending the Accords are brought in immediately. The fact that Tony Stark and Cap also seem to clash in a government building of sorts (or at least in a conference room) suggests that Cap is hauled in front of an over-seeing committee to explain what happened. That would also fit the Gyrich line.