Well, clearly one of the main characters is the other wife herself. She is likely at the center of the story's action and conflict.
The husband would also be a main character. His actions and decisions would have a great impact on the other wife's situation and the overall story.
There could be another woman involved too, perhaps the first or main wife. Her relationship with the other wife and the husband would be important aspects of the story.
In 'the wife killer short story', the central characters are the husband and the wife. The husband is the one who commits the heinous act. There may be other characters as well. For example, if the story is set in a small town, there could be a nosy neighbor who might have seen something strange before the murder. Or there could be a detective who is determined to solve the case and bring the wife killer to justice. These additional characters can add more depth and complexity to the story.
As I haven't read it, I can't say for sure. But surely the wife is one of the main characters. There might also be a husband or other family members or friends who play important roles in the story.
Well, clearly the cheating wife is one of the main characters. She is at the center of the story's conflict.
In the 'the crane wife short story', the primary characters are a man and a crane - turned - woman. The man is an ordinary fellow who comes across an injured crane. His act of kindness towards the crane sets the story in motion. The crane - woman is a magical being. She is in a way indebted to the man for his help, so she marries him. She is also very talented as she can weave with her crane feathers. Their different natures and the man's misstep in breaking her trust form the core of the story.
In the 'Crane Wife Short Story', the two key characters are the man and the crane - woman. The man is an ordinary human being who stumbles upon the crane in need. His actions are driven by compassion. The crane - woman, on the other hand, has a dual nature. She has the form and some of the characteristics of a woman but also retains elements of her crane self. Her story is about trying to fit into the man's world while still being true to her own nature.
Obviously, the antelope wife is one of the main characters. There may also be a human character who has an interaction with her. Maybe a hunter or a person living close to the area where the antelope wife is from.
Not having read the 'the other family short story', we can only guess. It could have a central character who is a child in the family, through whose eyes we see the family's world. There might be parents who are dealing with their own issues, like work - related stress or relationship problems. And perhaps there are other relatives like aunts, uncles, or cousins who pop in and out of the story, each bringing their own flavor to the family's story.
Well, in 'the other foot short story', it could be that there is a character who is facing some sort of moral dilemma. This character could be the central figure. There might also be other characters around him or her, like friends or family members who influence their decisions. Maybe there is an older character who has wisdom to offer, or a younger character who represents innocence or naivete in the context of the story.
I don't know as I don't have information about the 'the other two short story'. Maybe it could be a young protagonist and an old mentor type of character which is a common combination in many short stories.
Obviously, one of the main characters is 'the other man' mentioned in the title. But we don't know much more without reading it. There's probably another main character, perhaps the narrator who is observing or interacting with this other man.