Spoilers ahead for Avengers: Infinity War. Read at your own risk!
The Marvel Cinematic Universe is a decade and twenty movies into its run, and showing no signs of slowing down. Given the massive popularity of the genre, a wide array of acting talent have joined the shared universe, ranging from bonafide heroes to supporting players. And some actors have even played multiple roles, like Luke Cage's Alfre Woodard. Walking Dead actor Ross Marquand actually made his MCU debut replacing Hugo Weaving as Red Skull in Avengers: Infinity War, and recently revealed the Marvel hero he'd like to inhabit in a future appearance. Marquand said,
Oh yes--Moon Knight! It's tough because a lot of my friends have said Moon Knight is essentially just Marvel's answer to Batman, but I don't agree with that. I agree that there are similarities, but Moon Knight was a mercenary--kind of a gun for hire who didn't really have much regard for people before he had his moment of awakening, I guess. And Bruce was always a good guy--even as a kid, he was torn by revenge, but he wasn't this bloodthirsty killer like Moon Knight was. So I think that, coupled with what they've been doing the last 15 years with the character--going into the dissociative identity disorder, really calling in to question if everything happening is all in his head, is he actually a vigilante killer or did he die in Egypt? It brings up a slew of questions, and that to me has never really been delved into in any comic book character before--the idea of, is any of this actually happening? Is he crazy? Is he killing good people? Is he actually dead in Egypt? Those are such amazing questions and I don't feel like any comic book series before or since has really tapped into that. So for me, playing a crazy superhero would be awesome. So Moon Knight, Moon Knight for sure.
Ross Marquand's comments to AIPT prove how much the actor is a fan of comic book characters, and how ready he is to have a larger role in the greater Marvel Cinematic Universe. Because while he's already played comic characters in The Walking Dead's Aaron and Captain America villain Red Skull, he's ready to join the Avengers and Guardians on the side of good and maybe even get his own movie in the process.
Moon Knight is a Marvel hero originally named Marc Spector. When first created, he was the son of a Rabbi who fled Europe to escape the Holocaust. A boxer, marine, and eventual mercenary, Spector's life changes when he's brought to a tomb in a desperate attempt to safe his life in the field. He was brought back to life by ancient Moon God Khonshu, and dons his cloak in order to fight crime as Moon Knight.
The comparisons of Batman and Moon Knight likely come from their shared skills in martial arts and similar costumes. Marc Spector also develops a billionaire playboy persona, which is a bit similar to Bruce Wayne. But where Bruce relies on his vast resources, Moon Knight is given certain abilities from the moon itself, and therefore has a more mystical origin.