Chris Evans has discussed how Captain America has changed over the years, and how the events of previous adventures have impacted him. Prior to the release of 2011's Captain America: The First Avenger, many wondered how the character could be updated for modern times and given some depth. Thanks to a combination of Chris Evans' performance and a focus on his relationships with Peggy Carter and Bucky Barnes, Steve Rogers soon emerged as a fan favorite, and a character who always tries to do the right thing in a complex world.

The Captain America films always tried to deliver something new for viewers; the original is a pulpy World War II adventure, the sequel is a 1970s-inspired conspiracy thriller, and the third an unofficial Avengers sequel. Steve Rogers has evolved from an idealistic innocent to someone who's become gradually more disillusioned with each passing movie. He's been betrayed by friends and his government and is on the run following the events of Captain America: Civil War. The character is due to appear next - alongside just about every other hero in the MCU - in Avengers: Infinity War and its untitled sequel, where he will play a key role in the battle against Thanos.

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It's been interesting watching how Captain America has evolved throughout each appearance, and in an interview with Screen Rant, Chris Evans talks about how Rogers' experiences have impacted him:

I think Cap knows how to compartmentalize. I’m not gonna speak to what the film addresses, but in terms of my character, I think he is slowly - he’s becoming disillusioned as he gets older. Every single movie, he learns a little bit more than the world isn’t the way he kind of wants it to be, and I think that’s why there’s a connection between him and Black Widow. Black Widow has seen a lot more than he is, and is kind of a little more calloused, and I think in a lot of ways, he looks up to that and learns from that.

First, it was kind of the hierarchy of a kind of government structure that fell apart, and then there was a friendship that kind of betrayed him or abandoned him, I should say. I think when those things happen, it’s like a destruction of a belief system to some degree, and you kind of can be a little cold as a result.

Steve Rogers and Tony Stark in Avengers Infinity War

Captain America's damaged costume in Infinity War also somewhat reflects his mindset, but the character ultimately still wants to be of service to those in need:

I’ve dropped the shield essentially. I kind of went rogue a little bit. But again, I think it’s in his nature to be of service, and I think to some degree in order to maintain sanity, he had to kind of function within a system. That’s how his brain works, there has to be some kind of functioning factory that he can operate within.

And so he’s been running these missions, answering to nobody, really. I mean, it really is the sign of a broken person. But yeah, that’s the wear and tear.

From the looks of the trailers, it appears Captain America will play a key role in Avengers: Infinity War, so it will be interesting to see where the story finds him following Civil War. It's also been great seeing Evans grow into the role; he spoke openly when he signed for the original of being nervous about typecasting, but since then he's really embraced the character and the MCU.

There's likely to be a major bodycount in Infinity War, and many are predicting Captain America will be one of the casualties. Evans' contract with Marvel is over now, and it's expected that original cast members like Evans, Robert Downey, Jr., and Chris Hemsworth will be moving on following Avengers 4.

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