There could be a pair of characters such as a foreigner visiting a new country and a local guide. They start off just as strangers helping each other out, but then an unexpected bond of love forms between them.
Since I haven't read the 'love return in unexpected ways novel', it's hard to say exactly who the main characters are. However, we can assume that there will be at least one character who is at the center of the love story. This could be a person who has had a past relationship and is now facing the unexpected return of those feelings. There might also be secondary characters like friends or family members who influence or are affected by the main character's situation regarding this unexpected love.
The main characters are clearly Bella and Aro. Bella is often known for her kind heart and her connection to the vampire world in the Twilight - related universe. Aro, on the other hand, is a powerful and somewhat mysterious figure in the vampire hierarchy.
The main characters in this short story are hard to determine precisely without reading it. However, we can assume that there is the unexpected visitor, who is the catalyst for the events in the story. Then there are those who the visitor comes to see. They could be a single individual living alone, a family, or a group of people in a particular setting like an office or a community. These characters' personalities and relationships will be explored through their reactions to the unexpected visit, and their actions and decisions will drive the story forward.
Since it's a 'Tales of the Unexpected' kind of story, the main characters could be very diverse. It could be a group of friends who have different personalities. One might be a joker, another a serious and practical person. And during Christmas, their differences might lead to some unexpected situations. There could also be a local shopkeeper who plays an important role in the story, maybe he has some hidden knowledge or a special gift that is relevant to the unexpected events of the story.
I'm not sure as I haven't read the story, but usually there would be the host or hosts and of course the unexpected guest.
Since it's about Dusk Shine's love life, he is the main character. In addition, there could be characters like his mentor or classmates if the story is set in a school - like or learning environment. And of course, the most important other character would be the one he falls in love with. This could be a character that has been around him all along but he only now realizes his feelings for, or a completely new character that enters his life and turns it upside down in terms of love.
It's hard to say without reading it specifically, but it could be new characters created by the fanfic author. They might be ordinary humans who get involved with the Twilight characters. Or perhaps it's a different take on the main Twilight characters themselves, like Bella and Edward finding love in a more unexpected way than in the original story.
Since I haven't had the chance to read 'the great unexpected a novel', it's hard to say exactly who the main characters are. But in a lot of novels like this, there could be a young, idealistic character who is eager to understand and overcome the great unexpected. There might also be an older, wiser character who provides guidance and perspective as the unexpected unfolds.
I'm not sure specifically as there's not enough information given. But generally in a graphic novel, the main characters could be a hero on a quest, or a group of friends facing a common problem.
Often, the main characters are ordinary people. For example, a housewife who discovers something unusual in her attic. These normal - seeming individuals are then thrust into extraordinary and unexpected circumstances. Their reactions to these situations are what drive the stories forward.