Without having read 'In the Woods: A Novel', it's hard to say for sure. However, it's possible that there are characters like a young adventurer who is drawn to the woods out of curiosity. There might also be an older, wiser character who has a deep connection to the woods and its secrets. Maybe there are some antagonists as well, like poachers or people who want to destroy the woods for their own gain.
Since I'm not familiar with the novel, the main characters could be diverse. There could be a family who gets lost in the woods and they each have their own personalities and roles in trying to get out. There might be a scientist who is studying the ecosystem of the woods and discovers something unexpected. Or perhaps a group of friends who go camping in the woods and encounter things that change their lives forever.
Maybe there is a hermit who has been living in the woods for a long time and the story is seen through his eyes. There could also be a group of friends who decide to go camping in the woods and they all become main characters as they face different situations together.
There might also be a group of friends who decide to explore the dark woods together. Each of them could bring different skills and personalities to the story, like one being the strong and fearless one, another being the smart and cautious one.
The two main characters are Bill Bryson and his friend Katz. Bill Bryson is the narrator and he decides to hike the Appalachian Trail. Katz is his friend who accompanies him on this adventure.
The main characters in 'the woods graphic novel' could be a group of friends who get lost in the woods. There might be a brave leader among them, someone who is a bit of a coward at first but grows in courage, and perhaps a character with special knowledge about the woods, like a botanist or a tracker.
I'm not sure exactly without more context, but it could be a solitary hiker who is the focus of the story. The hiker's thoughts and experiences during the walk would be central to the plot.
Typically, in the 'Cabin in the Woods Novel', the main characters are those who are directly involved in the events at the cabin. It might include a male lead who is perhaps the most physically strong among the group and tries to protect the others. There could also be a female character who is more intuitive and starts to sense the danger early on. And there are likely other friends who each have their own personalities and quirks that play into how they react to the horror that unfolds around them. For example, one might be a skeptic at first, not believing in the supernatural until it's too late.
I'm not sure as I haven't read the specific 'Dark Woods Circus Novel', but usually in a circus - themed novel, there would be the ringmaster. The ringmaster is often a central figure, controlling the flow of the circus shows and having a lot of power within the circus community.
Characters from classic fairy tales are likely to be the main ones. This may include Cinderella, who is known for her transformation and her journey to the ball. There could also be Little Red Riding Hood, with her encounter with the wolf.
Perhaps there is an older character in the story as well, like a mentor figure. This character could have more experience and knowledge about the 'woods' or the situation the other characters are in, and they help guide the main characters on their journey to get out of the woods.
I don't know the specific main characters without having read the graphic novel. But they could be a brave adventurer, a local from the area near the woods, or perhaps a magical being trying to keep the demon in check.