There might also be other characters like the little man's family members. His parents could play an important role, guiding him or being part of his adventures. And of course, there could be friends he makes along the way. For instance, a talking squirrel who becomes his sidekick in exploring the forest around his home. Another character could be an old wise man who gives him valuable advice when he's in a difficult situation.
The main character is likely the little man himself. He could be a child - like figure full of curiosity.
In the 'little lion man story', apart from the little lion man, there could be other animals as important characters. For example, a wise old monkey who gives advice to the little lion man. Or a friendly zebra that the little lion man befriends, despite the natural predator - prey relationship between lions and zebras. There might also be a villainous hyena that constantly tries to cause trouble for the little lion man and his friends.
The little blue man is surely a main character. Maybe there is a wise old character in the story who gives advice to the little blue man. Or there could be a group of other beings who are initially afraid of the little blue man but then learn to understand him. It really depends on how the story unfolds, but the little blue man is the central figure for sure.
The little gingerbread man is the central figure. He's the one who comes to life and runs away. Then there are the people who create him, an old man and an old woman. As for the animals, they play important roles too. The fox is especially significant as it tricks the gingerbread man in the end. There's also the horse that tries to catch him at first, and the cow that also has an encounter with the running gingerbread man.
I'm not entirely sure as I haven't read the novel in full, but likely the 'little big man' himself is a main character. He is probably the central figure around whom the story revolves.
In the 'the man and the little cat story', the central characters are the man, who might be lonely or in need of companionship, and the little cat that enters his life. The man is likely to be a kind - hearted person as he gets involved with the cat, and the cat is the one that brings a new dynamic into the man's world.
I'm not sure exactly as there could be many interpretations of the 'little big man story'. But it might include the 'little big man' himself, perhaps his family members, and some friends or foes he meets along his journey.
The main character is most likely the 'little man' as the title implies. There could be other supporting characters like his friends, family members or people he meets during his adventures. Maybe there's a wise old man who gives him advice, or a young girl who becomes his friend and helps him in his journey. Without more information about the specific plot, it's hard to name all the main characters.
The main characters are obviously the garbage man and the little girl.
Not having read the 'Fat Man and Little Boy Novel', if it follows the historical narrative, there could be characters representing the ordinary people affected by the development and dropping of the bombs. People in Hiroshima and Nagasaki who had their lives completely changed. These could be among the main characters as the novel might show the human side of this historical catastrophe.
The two main characters are the little girl, who might represent purity and new perspectives, and the garbage man. The garbage man is likely an important figure in the story as his job is usually not very glamorous but he still plays a vital role in the community. Their interaction could be the core of the story, showing how different parts of society can come together.