It depends on the specific version of the story. But often, there's the ghost itself as a main character. There might also be a local villager who discovers the strange happenings around the well.
In the 'ghost in the well story', one of the main characters is surely the ghost. Additionally, there could be a curious child who ventures too close to the well and then has some sort of encounter with the ghost. And perhaps an old wise person in the village who knows some secrets about the well and the ghost, and tries to warn others.
There might be the ghost itself as the main character. It could be the spirit of someone who had a connection to the well in the past.
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.
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.
Well, it depends on the version of the story. Sometimes there's a lone traveler who stumbles upon the strange happenings in Blackwell. Another common character could be the ghost itself, which is often described as a shadowy figure.
Since I don't know the specific 'waltons ghost story', I can't say for sure. But likely it would include members of the Walton family like the parents and the children.
The main character is Major Motoko Kusanagi. She is a strong and intelligent cyborg. Then there's Batou, her partner in the law enforcement agency. He is a reliable and tough character. Another important character is Aramaki, who is in a leadership position within the agency.
Since I don't know the details of the 'ghost pony story', I can't say for sure who the main characters are. But it's likely that the ghost pony itself is one of the main characters.