Most likely, the little ghost is the central figure. However, there could be other spooky entities such as an old witch who gives advice to the little ghost or a friendly spirit animal that accompanies the little ghost on its journey. And of course, there could be the people in the place where the little ghost haunts, like the family living in the haunted house.
The main character is probably the little ghost itself. There might also be some humans who interact with the little ghost, like a brave child who isn't afraid of it.
Obviously, the main characters are the ghost and the little boy. There might be other supporting characters like the boy's parents who are unaware of the ghost's presence at first, or maybe an old hermit who knows a lot about ghosts and gives the boy some advice on how to deal with his new spectral friend.
The main character is Annie. The ghosts themselves can also be considered main characters in a way. They play a big role in the story as they are the source of the spooky elements. There might also be a friendly or not - so - friendly spirit guide - like figure among the ghosts that helps or hinders Annie throughout her encounter with the ghostly world.
The main character is Kipper the little ghost. But it's likely that there are other characters such as a friendly witch (if there are witches in this world) who might be a friend or foe to Kipper. There could also be a group of animal characters that Kipper meets during his adventures. These animal characters could either help Kipper or cause some trouble for him.
Obviously, Kipper the little ghost is one of the main characters.
In 'the ghost story', the main characters could be the people who encounter the ghost. Maybe a group of curious kids or a brave investigator.
As I don't know the particular '1930 ghost story', it could have a protagonist like a young journalist who is investigating the strange happenings. There might also be an old caretaker of the haunted place who has some secrets.
I don't have enough details about 'the little story' to say for sure, but it could be a child, a pet, or an old wise man.
The main character in the Ghost of Tsushima main story is Jin Sakai, a samurai with a strong sense of duty towards his homeland. His uncle, Lord Shimura, is an important part of the story. Lord Shimura represents the traditional samurai values. Another important character is Yuna. She is a thief - turned - ally of Jin. She has her own skills and knowledge of the island which prove invaluable to Jin in his fight against the Mongols. There are also Mongol characters like Khotun Khan, who serves as the main antagonist, driving the conflict in the story.
Since I don't have the full details of the 'ghost of razgriz story', it's hard to say exactly who the main characters are. But it's likely that the 'ghost of razgriz' itself is a main character, as the story is named after it. There may also be other characters who interact with the ghost, such as a brave hero who tries to confront it or a wise old sage who knows the secrets about it.
The main characters are likely to be the members of the Walton family, but without more specific information, it's hard to name them all precisely.