Theron has been a fan favourite for Cpt Marvel (and Enchantress) for years now. I think she's too big a name though, her price tag will be too high and she won't want to sign a 6-9 picture deal. Her age isn't a problem at all. Blunt is my pick. Top class actress & has a solid career behind her, but hasn't quite broken through to the big leagues, she's still stradling the line though. Perfect for Marvel to nab, and I think they already might have. No way in hell will Jolie be anywhere near this film.