Obviously, the missing boy is one of the main characters. There might also be his parents who are worried sick about him and are searching everywhere.
The main character is the boy who is missing. Besides, if it was a case of kidnapping, the kidnapper would be an important character too. And don't forget the police officers or the search and rescue team who are trying to find the boy.
Obviously, the queen is one of the main characters. And of course, the missing children are also main characters as the story is centered around them.
In a typical'missing little girl story', the main characters are, of course, the missing girl. Her family members play important roles too. For example, her mother might be constantly crying and hoping for her safe return. Her father could be out there with the search parties. There may also be a kind neighbor or a local detective who becomes deeply involved in the search and is determined to solve the mystery of her disappearance.
Since I don't know the exact story, I can only guess. There would likely be the missing girl herself. And probably her parents, as they would be very concerned about her disappearance. There might also be a detective or a police officer if it's a more crime - centered story.
It's hard to say without more specific information about the story. But it could be the missing children themselves, their families, and the police officers or investigators involved.
Since we don't have the full story, it's hard to say exactly. But most likely, the main character would be the little girl herself. There could also be her parents or guardians who would be very important in the story as they would be desperate to find her.
Thomas is surely one of the main characters as the story is named after him. There might also be other characters from the Thomas the Tank Engine series like his friends Percy and James. They could be involved in helping Thomas find the missing Christmas tree.
The main characters are Miss Nelson and her students. Miss Nelson is the teacher who goes missing. And the students are important as they are the ones who experience the changes after her disappearance.
Probably the missing kid is one of the main characters. And then there would be the people close to the kid, like the parents. There might also be a detective - type character if it's a more mystery - oriented story.
Since we have no information about the 'Among the Missing Novel' itself, we can only make assumptions about the main characters. They might be detectives or investigators if the 'missing' refers to a crime - related disappearance. Or, if it's a more psychological or fantastical story, the main characters could be individuals with special abilities or insights who are drawn into the mystery of the 'missing' elements. Maybe there are characters who are themselves on the verge of being'missing' in some sense, and their journey to avoid that fate forms the crux of the story.
I'm not sure as I haven't read it. But it could have the president as one of the main characters, even though he is missing. And perhaps some key advisors or investigators.