The main character is likely the paladin. But there could also be sidekicks like a clever wizard or a brave warrior.
Most probably, the paladin is the central figure. However, there may be other important characters as well. For example, there could be a mentor figure who guides the paladin on their journey, perhaps an old and wise priest. And there might be antagonists, such as a powerful demon lord or a group of bandits causing trouble in the lands the paladin is trying to protect.
I don't know the main characters as I haven't read it. Maybe there's the paladin himself/herself as a main character.
The characters from different races in the world of the web novel are also notable. Each race has its own characteristics, and the interactions between characters of different races can be quite interesting. Some might be more attuned to magic, while others could be stronger physically. These differences in characters and races make the world of the novel rich and diverse.
The protagonist is an important character, of course. He is the faraway paladin who drives the story forward with his actions and decisions.
I don't know as I haven't read it. There could be the paladin as the central character, of course.
Since I don't know the specific 'dark paladin novel', it's hard to say. But it would likely include the dark paladin themselves. There might also be a mentor figure who tries to guide the paladin back to the light or a villain who is trying to further corrupt the paladin.
The king and the paladin are the key figures. The king is likely to be a person of power, with responsibilities of ruling the kingdom. The paladin is probably a heroic figure, possessing great combat skills and a sense of honor. There might also be other supporting characters like the king's advisers, the paladin's comrades, or villains who oppose them in the story.
Most likely, the paladin himself is a main character. There may also be a mentor figure who trained the paladin or a sidekick who accompanies him on his adventures.
Often, there is the paladin themselves as the main character.
I'm not sure specifically, but it's likely that the paladins themselves are main characters. They might be a group of heroes with different personalities and skills.
The protagonist is Will. He is a key character around whom the story revolves. There is also Menel, who is one of Will's friends and companions. And Gus is another important character in the story. They all play significant roles in the plot of the 'Saihate no Paladin light novel'.