There's no way to know precisely without more information about the 'homecoming graphic novel'. But in general, if it's about a soldier coming home from war, the soldier would be a main character. Their family members, such as a worried mother or a proud father, would also likely be main characters. And perhaps there's a childhood friend who has changed a great deal in the time the protagonist was away, and this friend could be another main character, adding conflict or support to the story of the homecoming.
Mercy Thompson is the key character. In addition to her, there could be some supernatural beings who are either helping or hindering her during her homecoming. Maybe there's a wise old mentor type of character who gives her advice, or a dangerous antagonist who wants to stop her from achieving whatever goal she has during this homecoming.
Peter Parker/Spider - Man is the main character. He is the one who has to balance his life as a high school student and a superhero. Tony Stark also plays a significant role as Peter's mentor. And then there's the Vulture, who is the main villain in the story. He causes a lot of trouble for Spider - Man.
Peter Parker is central in the 'Spider Man Homecoming Novel'. He is the young hero trying to find his place in the world. His Aunt May also plays a role, as she is his guardian. She represents the family aspect of Peter's life. Additionally, Flash Thompson, a school bully, is there. He adds some conflict in Peter's school life. The main villain, the Vulture, is a crucial character too, as he drives much of the action.
Typically, in Star Trek stories, characters like Captain Kirk, Spock, and McCoy are often main characters. So, they might be the main ones in this novel as well.
There might be an older family member like a parent or grandparent. They could represent the stability and history of the home. Their reaction to the homecoming character can add depth to the story, whether it's joy, resentment, or a mix of emotions.
Since it's a fan fiction related to 'homecoming 1996', the main characters could be based on the people involved in that particular homecoming event. It could be the popular kids in school, the outcasts, or the organizers of the homecoming. They would be the ones driving the plot forward, whether it's through their relationships, conflicts, or personal growth during that time.
I don't know as I haven't read the story, so I can't tell you who the main characters are.
Perhaps there are characters such as a young adult who has been living in a far - away city for work or study and is coming home. There might also be the parents waiting at home eagerly for their child's return. There could be siblings involved too, who are excited to see each other after a long time apart during Christmas.
I'm not sure specifically as the information about it isn't given. But it could be a family member who is coming home, like a son or daughter. Maybe there's also a character like a grandparent waiting for the homecoming.
Peter Parker, of course, is the main character as he is Spider - Man. Also, his Aunt May who plays an important role in his life. And there are likely villains like Vulture who are key characters in the story.