Given just the title, we can assume that the main character is the noble evil king. But there may be other important characters too. For example, there could be a group of rebels who are trying to overthrow the king, thinking he is truly evil. Or perhaps a wizard who has some sort of connection to the king, either as an old acquaintance or an enemy. And there could be a court jester who provides some comic relief while also having some insights into the king's true nature.
Given the title 'the noble evil king novel', the king is bound to be one of the central characters. He could be surrounded by a court of nobles, some of whom might be his allies and some his enemies in disguise. There may also be a female character, like a princess or a witch, who either has a romantic interest in the king or is trying to manipulate him for her own purposes. Another possible main character could be a young hero from a humble background who rises up against the king's evil rule.
Well, 'the noble evil king web novel' could potentially revolve around a complex character, the evil king. The 'noble' part might imply that he has a sense of honor or does things for what he believes is the greater good of his kingdom, even if his methods are not typical. It might include his political struggles, his relationships with his subjects, nobles, and perhaps other kingdoms. It could also explore his inner conflict between his 'evil' actions and his 'noble' intentions.
The main character is Tanya Degurechaff. She is a reincarnated salaryman in the body of a young girl in a war - filled world. Her actions and decisions drive the story forward.
The main character is Tanya Degurechaff. She's the central figure around which the story revolves. She has a very distinct personality, being both cunning and resourceful.
The most important character is undoubtedly Tanya. She is the central figure around which the whole story revolves. Then there are her superiors and subordinates in the military. For example, some of her commanders play important roles in giving her orders and evaluating her performance. There are also her fellow soldiers who are sometimes her allies and sometimes her rivals in the military campaigns. And of course, there is the mysterious Being X which has a significant impact on Tanya's life and the overall story.
Well, obviously the evil dragon is one of the main characters. There might also be a hero or a group of heroes who oppose the dragon.
In the 'evil king story', the king is the central figure. However, there could be other important characters too. For instance, a wizard who tries to use his magic to either support the king's evil deeds or to stop him. And there may be a young princess who is held captive by the king and becomes a symbol of hope for the people to fight against him.
In 'Tanya the Evil Web Novels', apart from Tanya, we have characters like Erich von Rerugen. He is a key figure in the military and often has to deal with Tanya's unorthodox behavior. And there are other characters on the opposing side as well, which makes for interesting battles and power struggles.
There is also a female character, perhaps a sorceress, who often aids the dark king in his quests. She has her own set of powers and motives that add depth to the story.
I don't know the exact main characters as I haven't read it. But surely the goblin king himself is one of the main characters. There may also be his trusted advisors or generals within the goblin tribe.