Fans have been looking forward to the upcoming series Moon Knight which will feature the titular hero's debut in the MCU and they can't wait to see what's in store, especially with Star Wars vet Oscar Isaac taking the role. While there are no exact details yet, the character is expected to have a larger role in the franchise and will eventually cross over to the films.
In an interview with Fandom, Isaac revealed that he wasn't familiar with the character before he took the role. He said, "That’s really what it was. I collected comic books in the 90s but I had not heard of Moon Knight. It wasn’t on my radar at all, so when it came my way I didn’t have any baggage on it. I didn’t really know anything. I read the first episode, I spoke with Kevin [Feige], I tested some stuff out on my kids…. And I just got really excited about the story and about the character and the potential there and I found there to be a lot of space to try some really out-there stuff."
Moon Knight is not considered as one of the A-list Marvel characters so you can't at least blame Isaac for not being familiar with him before getting cast on the role. However, he did a lot of research on the character as he was preparing for the role (like most actors do) to make sure that he will do justice in playing him which is really what's important in the end.
When asked about playing different characters since Marc Spector is known to have dissociative identity disorder, the actor played coy where he just simply said, "Well, we’re definitely doing the Moon Knight story! So I’m gonna be really excited to talk about it ad nauseum next year."
The MCU films and shows are not direct adaptations of the comics, but they have used them as their inspiration on their storylines. We can pretty much assume that the core characteristics and elements of Moon Knight in the series will be almost similar as it was in the comics while, of course, still confined to the established canon of the MCU.
Moon Knight is set to premiere on Disney+ next year.