In a 'castle war story', the main characters could be quite diverse. There might be a valiant king who is determined to protect his castle and the surrounding lands from invaders. His loyal knights would be by his side, each with their own skills and personalities. There could be an enemy general on the opposing side, who is hell - bent on taking over the castle for his own purposes. Additionally, there could be local villagers who play important roles, either by providing support to the castle's defenders or by being caught in the crossfire. There may also be a mysterious figure, like a wizard or a sage, who provides guidance or magical assistance during the war.
Maybe there's a princess who is a main character in 'castle story'. She could be the one in need of rescue or the one who holds the key to some mystery within the castle. There might also be an evil wizard or a cunning thief as main characters, depending on the nature of the story.
In 'A Castle for Christmas Story', the key characters are an author, a woman who wants a change of scenery for Christmas and chooses the castle. And the other main character is the castle's owner. He has his own way of life and rules for the castle. As the story progresses, their relationship becomes the focus, with both of them changing and growing through their interactions during the Christmas period.
I don't know as I haven't read 'The Game Castle Story'. It could be a brave knight, a clever wizard, or a cunning thief as these are common character types in castle - related stories.
I'm not sure as the specific 'the castle novel' isn't clearly defined. But generally, there could be a lord or lady who owns the castle. They would be in charge of the castle's affairs and the people living within its walls.
Juliana Crain could be a main character. Her strong will and ability to see through the lies of the alternate reality could help her in the portal war. She might be the one to figure out how to close the portals or use them to the advantage of the resistance.
I'm not sure specifically without more details about this story, but it could be an adventurer who dares to enter the cave to explore the castle. Maybe there's a wizard or a guardian protecting the secrets of the castle within the cave.
Given the limited information, the boy is surely one of the main characters. There could be an older figure in the town, like a wise old man who gives the boy advice. Also, if there are any antagonists, they would also be important characters. Maybe there's a bully in Castle Rock who makes the boy's life difficult, or a mysterious figure that the boy has to deal with.
Perhaps the main characters in the 'fortune teller castle story' are the fortune teller, who holds the secrets and powers of prediction, and a group of travelers who come to the castle with different motives. One might be a knight in search of a prophecy to help him in his battles, another could be a maiden looking for love - related fortune. And there might be a villain who wants to use the fortune teller's powers for evil, adding conflict to the story.
Since I don't know the specific 'Sand Castle True Story', I can't say for sure. But it could be a child who loves building sand castles, and their parents or friends who are involved in the sand castle - building experience.
The central figure in the Coral Castle Love Story is Ed Leedskalnin. He was a Latvian - born man. He fell in love with a woman, and she was the key figure in his life, even though she left him. His entire project of building the Coral Castle was in some way related to his love for her. He spent years constructing this place, and his story has made the Coral Castle not just a structure but also a symbol of his love and loss.