I can’t divulge who is going to be in the film, but I think the fans are going to freak out when they hear about it.
Said the Russo brothers, directors of Captain America: The Winter Soldier and the upcoming Captain America 3 (untitled).
Guys, this may mean that we would have Hawkeye in CA3 just as Jeremy Renner said
there are rumblings of [a Hawkeye appearance in] Captain America 3
This means that we will have an amazing set of villains, heroes, and supporting characters. Now, a lot of people have lists of characters they would like to see. I like lists. Now I would like to share my roster for Captain America 3.
Captain America (Steve Rogers) played by Chris Evans
Well, maybe we don't need him, I mean, it's called Captain America 3 for a reason.
The Winter Soldier (James Barnes) played by Sebastian Stan
This one is a pure given with Caps death in Cap 3. He would take up the mantle in the end credits maybe and avenge Cap by killing Crossbones in Captain America 4.
Hawkeye (Agent Clint Barton) played by Jeremy Renner
This has been rumored for about a week. Maybe in Avengers 2, they could change the suit to the Ultimate version in the dark sense. They could go into how his family was killed and it could be Zemo who had done so with his hired guns.
Ronin or Moon Knight (Marc Spector) played by Steven Grant
He would simply be there to hunt Bullseye and also to set up the Secret Avengers roster after Avengers 3.
Black Panther (T'Challa) played by Chadwick Boseman
As a friend of Cap and a very stealthy soldier, he would fit perfectly in Cap 3.
Captain Marvel (Captain Carol Danvers) played by Kristen Bell
She would be great for a movie like this. She doesn't have to have powers yet or anything but I would love to see her in it.
Black Widow (Agent Natasha Romanoff) played by Scarlett Johansson
If we don't have Black Widow, we riot.
Falcon (Agent Samuel Wilson) played by Anthonie Mackie
We can't just drop Falcon out of the air (punny) he needs to continue the friendship between he and Cap. He could finally be one making more decisions and being more of a badass. Hopefully he gets his red and white suit and maybe his pet Falcon.
Agent 13 (Agent Sharon Carter) played by Emily VanCamp
Cap needs a love interest and she is the right fit for him.
Director Nick Fury (Nicholas Fury) played by Samuel Jackson
In any movie involving Avengers or Captain America, you need Nick Fury. The Director of New SHIELD
Hank Pym played by Michael Douglas
He can be a supporting character but not a major character. Maybe just an appearance.
Baron Zemo (Heinrich Zemo) played by Steve Buscemi
We all need a mastermind. Except we don't want Mastermind (with a capital M). Baron Zemo is wanted by all Marvel viewers. He would be the one pulling strings in Caps death.
Crossbones (Agent Brock Rumlow) played by Frank Grillo
Crossbones is a given. He would be the one to win the prize of killing Captain America and the large sum of money from Zemo.
Nuke (Agent Frank Simpson) played by Stephen Lang
Nuke would be a great villain for Cap. He doesn't have to be an assassin of Zemo though.
Taskmaster (Tony Masters) played by Sean Bean
Everyone loves Taskmaster. We want him for Cap 3 as on of Caps many assassins. Another of Zemo's goons.
Kaine (Pieter Parker, name change due to Marvel rights) played by Dean Geyer
He would be a cool assassin to take out Cap, hired by Zemo.
Bullseye (Lester) played by Jason Statham
But he really should appear on the Daredevil tv show first then be hired by Zemo to assassinate Cap.
Overall, this entire movie could be a set-up to The Secret Avengers trilogy after Avengers 3 and it would be the most shocking and intense.