I'm not certain, but likely the raven king himself is one of the main characters.
The raven king is surely a main character in this bonus story. He could be joined by his trusted companions from the main story, such as his bravest knights or his wisest councilors. There might also be some new characters introduced in the bonus story. For instance, a mysterious traveler who brings news or a prophecy that shakes the raven king's world. Another possible main character could be a long - lost relative of the raven king who suddenly appears and causes a stir in the kingdom. All these characters would interact and drive the plot forward in the bonus story.
The main plot of 'the raven king bonus story' could potentially revolve around the aftermath of the main story's events. It might show how the characters are dealing with the new status quo. For example, if in the main story there was a big battle, the bonus story could be about rebuilding the kingdom. Or it could explore the emotional states of the characters, like how the raven king is coping with new responsibilities or relationships. There could also be new threats emerging that are hinted at in the bonus story which might lead to future stories in the series.
The wicked king must be one of the main characters. There might also be some of his loyal servants or advisers if the story focuses on his rule. And perhaps there are some characters who oppose him, like a brave knight or a wise old wizard who tries to stop his evil plans.
The Raven King is surely one of the main characters. There might also be characters like his loyal followers or servants in his kingdom.
There is a character named Gansey. He is one of the central figures, often leading the group. Blue is another main character, a girl with her own unique abilities. Ronan is also important. He has a rather complex personality. And Adam, who has his own struggles and ambitions in the story.
I'm not sure specifically as there could be many possible main characters. It could be an office worker who is the recipient of the Christmas bonus.
The main characters are a woman who is making a comeback in the workforce at a publishing company and a man who is already working there. Their names are [specific names if known].
The main characters in 'The Raven' are the narrator and the raven. The narrator is a man who is mourning the loss of his love, Lenore. The raven is a mysterious bird that enters the narrator's room and drives him into further despair with its 'Nevermore' responses.
In the 'black raven story', apart from the raven, there might be a wise old owl. The owl could serve as a mentor to the raven, guiding it on its journey. There could also be a group of mischievous crows that the raven has to deal with, either as friends or foes.
The main character is the narrator. He is the one who is experiencing the grief and the strange encounter with the raven. And of course, the raven itself is also a main character as it has a big impact on the narrator's state of mind and the progression of the story.
Since I don't know the details of the 'queen of air and darkness bonus story', I can only guess about the main characters. The Queen is obviously a key character. There may be other magical beings in the story, like fairies or spirits that are either part of her court or trying to resist her. Maybe there's a young protagonist who discovers the secrets of the queen and has to decide what to do with that knowledge. It could also have a sidekick character for the main character, if there is a character other than the queen who is the focus in some parts of the story.