Yes, he probably does. Comic book characters often have some level of awareness of their fictional existence within the comic universe.
It's hard to say for sure. While it's not explicitly stated in most cases, one could argue that as a powerful and intelligent character, Professor Xavier might have an inkling that he exists in a comic book world. However, it could also be that he remains oblivious to this fact and is just focused on his superhero duties.
Hard to say for sure. Maybe he does, maybe he doesn't. It all depends on how the story unfolds.
I don't think so. In the comic book universe, characters usually operate within their own storylines and don't have the realization that they are fictional creations. So, Doctor Strange is no exception.
Sure does! Deadpool often breaks the fourth wall and acknowledges that he's a comic book character. This is a defining trait of his character and adds to his unique charm and humor.
Chances are he doesn't. Comic book characters often operate within their own storylines without being consciously aware of their fictional status. Howard the Duck is no exception.
Sure, Deadpool frequently acknowledges being in a comic. This awareness is a defining trait that adds to his humor and unconventional nature. It allows for meta-commentary and breaks the fourth wall.
Yes, Deadpool is aware that he's in a comic book. He often breaks the fourth wall and makes references to it.
It's hard to say for sure. Sometimes it seems like he might have an inkling, but it's never explicitly shown.
Well, sometimes it seems like he does. He often breaks the fourth wall and makes comments that suggest he's aware of his fictional status.
Well, it's ambiguous. In some interpretations, Joker might be oblivious to being in a comic world. But in others, there are hints that he might have some awareness, though it's not clear-cut.
It's hard to say for sure. Maybe he does, maybe he doesn't. The comic creators haven't made it clear.