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.
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.
I don't know as I haven't read it. There could be the paladin as the central character, of course.
The main character is likely the paladin. But there could also be sidekicks like a clever wizard or a brave warrior.
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.
I don't know the main characters as I haven't read it. Maybe there's the paladin himself/herself as a main character.
Often, there is the paladin themselves as the main character.
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'.
Well, obviously Harry is one of the main characters. He is the paladin at the center of the story.
Since I haven't read the 'Melida Angel Paladin Light Novel', I can't tell you exactly who the main characters are. You could look for summaries or character descriptions on book - related websites or forums.