The characters could include not only the obvious ones like the farmers and the farm animals. There might be a young child who loves to play around the big red barn. This child could have a special bond with the animals and the barn itself. There could also be an old wise owl that lives in the nearby tree and is sort of a watcher over the barn. And perhaps a friendly dog that helps the farmers with their work around the barn, herding the animals or guarding the place at night.
In 'the big red barn story', we may find typical farm characters. The farmers who own and take care of the barn are likely to be in the story. They are the ones responsible for maintaining the barn and the activities around it. Then there are the animals. Cows could be there, mooing around the barn, horses stabled inside or outside, chickens pecking around looking for food. There might also be a barn cat, prowling around to keep the mice away. These characters together create the life and atmosphere around the big red barn.
There could be farmers, as it's a barn which is usually associated with farming. And of course, there might be animals like cows, horses, chickens etc.
There could be a farmer as a main character. He takes care of the animals in the big red barn.
The big red barn story could be about the adventures that take place within and around it. For example, children might play hide - and - seek around the barn, or discover a little nest of baby animals in a corner of the barn. It might also be a place of mystery, where strange noises are heard at night and the characters in the story try to figure out what's causing them.
The main idea might be about the big red barn itself, perhaps it's a place full of memories, or it could be about the animals or activities associated with the barn.
I don't know for sure as the story isn't widely known to me. But it could have a hat - maker as a character, who fills the barn with hats.
In the 'barn burning story', the father is a central character. He is a symbol of the frustrated poor. His actions of barn burning are a reaction to the inequality he feels. The son is another main character. He witnesses his father's actions and is constantly in a state of internal conflict. He is influenced by his father's actions but also has his own sense of morality which makes him question what his father does. This internal conflict within the son is a major part of the story.
In the 'big red bus story', there could be a host of characters. The bus driver would be a likely central figure. There might be a group of mischievous kids who always cause a bit of chaos on the bus. There could also be a kind-hearted conductor who helps passengers find their seats and collect fares. And perhaps there is a lonely traveler who uses the big red bus to start a new chapter in their life and has interesting conversations with the other passengers during the journey.
The main characters in the big red hen story are the big red hen, a dog, a cat, and a mouse.
The main character is the big red hen. There are also other animals like the cat, the dog, and the pig. These other animals are the ones who don't help the big red hen with her work.
I don't know as I haven't read it, but it could be a child as the main character, since baths are often associated with children.
Since I don't know the details of the 'barn full of cars story', it's hard to say who the main characters are. But it could be the owner of the barn, or the person who discovers the barn full of cars.