Not having read the novel, we can only guess. There could be an ordinary person who has been living a mundane and restricted life until something happens that makes them realize they need to be 'free to breathe'. This person then becomes the central character, driving the story forward as they take steps to change their situation and gain the freedom they desire.
Since I haven't read the 'free to breathe novel', it's difficult to say. It might have a female lead who is fighting against a system that restricts her freedom. Or it could be a group of friends who together strive to reach a state of being free to breathe.
I'm not sure exactly as I haven't read it, but they could be ordinary people affected by air - related issues, like a factory worker exposed to pollution or an environmental activist trying to make a change.
I'm not entirely sure as I haven't read 'Breathe a Ghost Story' specifically. But generally, in a ghost story, there could be characters like a protagonist who might be the one to encounter the ghost, perhaps a young person or someone new to the haunted place. There could also be secondary characters such as friends or family members who either believe or don't believe the protagonist's experiences.
Since I don't know the exact story, it could be a patient who was suffering from a breathing disorder as the main character.
I'm not sure specifically as I haven't read it. It could be about a journey of self - discovery where the characters find freedom in various aspects of life, like breaking free from constraints and finally being able to 'breathe' freely in a metaphorical sense.
It's possible that other characters from the Harry Potter universe could also be involved. For instance, Hermione might be nearby when this incident occurs and could play a role in the aftermath. Or Dumbledore could have some influence on Severus' decision to save Harry, even if he's not physically present at the moment of Harry's distress.
Draco Malfoy is obviously a main character since it's about him not being able to breathe. Harry Potter often shows up in these fanfictions as well. Given their long - standing rivalry, Harry might be in a position where he has to decide whether to help Draco or not. Hermione Granger could also be involved, using her intelligence to try and find a solution to Draco's problem.
I'm not sure specifically without reading the novel, but often in a story about breaking free, there could be a young protagonist who feels restricted by their circumstances.
The most obvious main character would be Willy the whale. In addition, there may be a marine biologist or an animal rights activist in the story. They would be the ones with the knowledge and the drive to free Willy. There could also be some antagonists, such as the owners or managers of the place where Willy is captive who don't want to let Willy go for various reasons, like financial interests. These characters would all interact and create the plot of the 'free willy novel'.
I don't know as I haven't read it. Maybe there is a young adventurer as the main character.
Since we have so little information, 'they' could be any number of things. It could be a race of creatures in a fantasy game. Maybe they are some kind of alien beings in a science - fiction game. The possibilities are really broad.