There's not enough information to know exactly who Charlie is. He could be a young boy who is more sensitive to the supernatural, or perhaps an older man who has moved into a haunted place. It all depends on the specific story.
Charlie in the 'Charlie's Blanket Christmas Story' is most likely the protagonist. He could be a young boy or girl. Given that the story is related to a blanket and Christmas, Charlie might be a character who is full of wonder and excitement during the Christmas season. His blanket is probably something he holds dear, and the story might revolve around his experiences with the blanket during Christmas, such as waiting for Santa while wrapped in the blanket or using the blanket to keep warm while looking at Christmas lights.
In the 'Charlie Daniels Christmas Story', Charlie Daniels is the central figure. He might be a storyteller who uses his own life events during Christmas as the basis for the story. He could be someone who has had a long - standing relationship with Christmas traditions and is now passing on those stories, whether they are about his family's Christmas, his musical experiences during the holiday, or other things related to Christmas in his life.
We don't really know much about who Charlie Walker is specifically from just the title 'Charlie Walker True Story'. He could be an ordinary person who had an extraordinary experience. He might be a local hero in his town, someone who did something great like saving a life or starting a successful business. Or he could be a person who had to face a lot of hardships in life, like poverty or discrimination, and his story is about how he fought through those difficulties.
The animatronics themselves can be considered main characters in a way. Freddy Fazbear, Bonnie the Bunny, Chica the Chicken and Foxy the Pirate Fox play significant roles. They are the sources of horror, with their own distinct personalities (although they are haunted and menacing) in the stories. For example, Freddy is often depicted as the leader among them, and his appearance is always a sign of great danger.
The identity of the artist who drew the FNAF graphic novels isn't something I'm familiar with. Maybe it's someone associated with the FNAF game development team, but you'd need to do some in-depth research to find out for sure.
Charlie Freeman is the central character in the novel. But without reading it, we can't say much more about his specific traits. He could be an ordinary person with an extraordinary story or someone with unique qualities.
I'm not sure which specific 'Charlie Duncan' you are referring to in stories. There could be many characters named Charlie Duncan in different literary works or personal narratives.
I'm not sure specifically who 'Charlie the drifter' is without more context. It could be a character created by a particular author or within a certain community's stories. Maybe he's a wandering soul with unique adventures in the fictional tales.
I have no clear idea. It could be a minor character or someone related to specific events within the story that aren't commonly discussed. You might need to look deeper into the details of the OJ Story to figure it out.