In the 'love knight story', the knight is surely one of the main characters. He would be the protagonist, driving the story forward with his actions in the name of love. His love interest, let's say a fair lady, would also be a main character. She might be the one the knight is trying to protect or win over. Additionally, there could be a mentor figure, an older knight or a wise wizard, who gives advice to the main knight on his journey of love. This character could help the knight navigate through the difficulties and challenges that come his way in the pursuit of love.
There is Yuki Cross. She is a central character. She has a complex relationship with the vampire world and the people in it. Then there is Zero Kiryuu, who also has his own issues and a deep connection to Yuki. Kaname Kuran is another main character. He is a powerful vampire and has strong feelings for Yuki as well.
In the Dark Knight Story, the most prominent characters are Batman, who is the Dark Knight and protector of Gotham. Then there's the Joker, a deranged and extremely intelligent criminal. Also, Commissioner Gordon plays an important role. He is one of the few in the police force who trusts Batman and often works with him to keep the city safe. These characters drive the story forward with their interactions and their different goals. Batman wants to bring justice, the Joker wants to create anarchy, and Gordon wants to uphold the law in a city filled with corruption and crime.
Since I don't know the exact 'Sad Knight Story', it could have the sad knight as the main character of course. There might also be a damsel in distress he is trying to save or a villain who caused his sadness.
In the Dark Knight story, the most prominent characters are Batman, who is the Dark Knight trying to protect Gotham. Then there's the Joker, a chaotic and evil villain who loves to create mayhem. Also, Harvey Dent is an important character. He starts as a district attorney with good intentions, but later gets corrupted by the Joker's actions.
Probably the little knight himself is a main character. There might also be a mentor figure, like an old knight or a wizard.
The main character is of course the black knight. There may also be other knights he interacts with, like his rivals or allies.
In the Dark Knight story, there are several main characters. Batman is the protagonist, a vigilante protecting Gotham. The Joker is a very important character too. He's a maniacal villain with a twisted sense of humor. Then there's Harvey Dent. He starts out as a good guy, a district attorney trying to clean up Gotham, but later becomes Two - Face. These three characters play crucial roles in the story.
The knight is surely one of the main characters. In addition, there might be his squire, a young boy who helps him with his armor and horses. There could be a wise old wizard who gives the knight advice. And perhaps a beautiful princess who is the object of the knight's affections or the one he is sworn to protect.
Again, without more details, it's hard to say. But it could be the knight himself as the main character, and perhaps a princess he is trying to save.
Since it's an anonymous story, it's hard to say exactly. But typically, there would be the knight himself as the main character. There might also be a villain, like an evil sorcerer or a tyrannical lord.