Neal McDonough's been confirmed. apparently the Howling Commandos may be renamed as The Invaders.
I wouldn't be surprised if the Howling Commandos were folded into
the Invaders, since this film seems to be pretty name-heavy already. Making the Howling Commandos the Invaders, and then making Cap, Union Jack, Spitfire, etc. into something else--now that would be odd.
Fictitiously yours, Trent Roman