Not having read the story, we can only hypothesize. The devil is bound to be a central figure. There may be characters such as a hapless victim of the devil's schemes, a wise old man or woman who tries to outwit the devil, or a group of people who are being influenced by the devil's busyness in different ways. It's also possible that there are other supernatural beings that play a role, either as allies or foes of the devil.
Since I haven't read the story, I can only guess. It could center around the devil's busy nature. Maybe he's constantly making deals, tempting people, or trying to disrupt the order in some way. It might show different scenarios where his busyness has an impact on the characters or the world in the story.
There might be a protagonist who is tempted by the devil. This character could be someone with a strong will initially, but the devil tries to break that. There could also be a side character, like a wise old man or a priest, who provides some sort of guidance or counterpoint to the devil's influence.
I'm not sure specifically since I don't know the exact 'the devil in the details short story' you're referring to. But generally, it could be a protagonist who is perhaps overly confident and ignores details, and an antagonist that might represent the 'devil' in those details, causing problems for the protagonist.
I don't know for sure, since I haven't read the story. It could be a sailor.
I'm not sure as I haven't read the story specifically. But typically, in a story about the devil in America, there could be a protagonist who is either fighting against the devil or being tempted by it. There might also be other characters like a preacher or a wise old person who tries to guide the protagonist.
Since we don't know the exact 'Sea Devil' short story, the main characters could be a group of sailors. They might be on a voyage when they encounter the sea devil. There could also be a captain among them who has to make decisions when faced with this threat.
The main characters are the devil and Daniel Webster. Jabez Stone is also an important character as he is the one who makes the deal with the devil and brings Daniel Webster into the situation.
The two main characters are Tom Walker and the devil. Tom is a miserly man who is tempted by the devil's offer of wealth. The devil, of course, is the tempter who lures Tom into making a deal.
Since I don't have the story in front of me, it's hard to say exactly. However, in stories with this kind of title, there might be a character who is initially oblivious to the details. Maybe a detective - like character who has to learn to pay attention to the details to solve a mystery. And there could be other supporting characters who either help or hinder in the discovery of the important details.
There might be a human who gets involved with the devil. This person could be a curious soul who is lured by the devil's promises. For instance, a poor farmer who is desperate for a good harvest and makes a deal with the devil.