The first order of business that Henry Cavill made crystal clear when speaking to The Hollywood Reporter was that there was no other role from previous MCU films he'd consider. "I'm never going to say a Marvel character that is already being played by someone else, because everyone's doing such an amazing job," he said pragmatically, just as a good superhero aims to be.
"However," Cavill continued, "I have the internet and I have seen the various rumors about Captain Britain and that would be loads of fun to do a cool, modernized version of that — like the way they modernized Captain America. There's something fun about that, and I do love being British."
On the list of perfect pairings for roles, tackling the character of Captain Britain would be the next best move for Cavill since, well, playing Superman. Debuting in 1976, Captain Britain is the superhero identity of Brian Braddock, who is bestowed powers by the wizard Merlyn from Arthurian legend. He often worked alongside the Avengers as well as the X-Men, even forming his own team Excalibur (via Marvel). Interestingly, Braddock was also part of MI-13, the same team that Dane Whiteman, aka Black Knight and Blade (last seen and heard in the post-credit scene of "Eternals"), was a part of. Given the avenues that Marvel is currently going down, it wouldn't be a surprise if Captain Britain eventually flew in to save the day. Heck, we've already gotten a taste of what a Captain Britan-esque superhero would look like in the form of Captain Carter (Hayley Atwell) on Marvel's "What If...?" This casting could definitely work.
