In some 'the ghost horror story' versions, it could be a family. Maybe a family who inherits an old estate and discovers that it's haunted. Each family member reacts differently to the ghostly encounters, which adds to the complexity and horror of the story.
Often, there's a protagonist who is new to a place, like a person who just moved into a supposedly haunted house. This character then has to face the manifestations of the ghost. There may also be a local character who warns the protagonist about the ghost but is ignored at first.
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.
Again, without more details about the specific 'ghost patrol story', it's hard to say. But it could be the members of the ghost patrol team.
Well, obviously the ghost princess herself is a main character. There might also be a villain, perhaps an evil sorcerer who caused her to become a ghost. And there could be a hero, like a brave knight who tries to help the ghost princess break the curse or fulfill her quest.
I'm not sure as the story isn't well - defined here. It could be the hunger ghost itself as the main character.
Obviously, the main characters are the boy and the ghost. The boy could be an ordinary kid with an extraordinary encounter, and the ghost is the mysterious entity in the story.
I don't know as there's not enough information. It could be a young girl who is sensitive to the supernatural, or a group of friends who stumble upon a haunted place.
It could be the person who encounters the black ghost. Maybe a curious explorer who stumbles upon the haunted place where the black ghost resides.
The main characters in the 'ghost riders story' might include not only the ghost riders but also the people who encounter them. For example, a local farmer or a traveler who stumbles upon the ghostly riders. Their reactions and interactions with the ghost riders can be an important part of the story.