Since I haven't read the fanfic, it's difficult to say for sure. But it might include the titular 'white knight' as a main character. There could also be some of the original RWBY characters like Ruby, Weiss, Blake, and Yang who interact with the white knight.
The main characters in the 'white knight rwby fanfic' could be a mystery until you read it. But considering the RWBY setting, it may have the white knight as the protagonist. This character could be joined by a sidekick or a group of allies. These allies might be characters from the RWBY series who share the white knight's goals. For instance, a member of a Huntsman or Huntress academy who teams up with the white knight to fight against the Grimm and protect the people. There could also be a love interest for the white knight, which could be one of the RWBY girls or a new character introduced in the fanfic.
Well, obviously the Rusted Knight is a main character. In many fanfics, they are often portrayed as a complex and mysterious figure with a troubled past. Ruby Rose might also be a main character in some 'rwby rusted knight fanfic' as her story is often intertwined with that of the Rusted Knight in the RWBY universe.
Well, it likely includes characters from RWBY like Ruby, Weiss, Blake, and Yang. But in the context of the Silent Knight fanfic, there might be a new character who is the Silent Knight. This character could be a mysterious figure with unique abilities and a backstory that ties into the RWBY universe in some way.
In the 'white wolf rwby fanfic', the white wolf is surely a main character. Alongside it, the core RWBY team members are likely to be important. Ruby, with her silver eyes and positive attitude, might be the one to first encounter the white wolf. Weiss, the ice - queen type, could have a more cautious approach towards it. Blake, with her Faunus background, might have a special connection to the wolf. And Yang, the strong and fearless one, could be involved in any battles related to the wolf.
It's hard to say precisely what the 'white knight rwby fanfic' is about without delving into it. However, generally in RWBY fanfics, a 'white knight' could symbolize purity and heroism. So it could be a story where this character embarks on a quest, maybe to find a lost relic or to save a kingdom from destruction. There could be elements of adventure, with the character traveling across different regions of the RWBY world, facing challenges, and growing both in power and in character along the way.
Since it's a RWBY fanfic, there are likely to be some of the main RWBY characters like Ruby, Weiss, Blake, and Yang. As for the knight, they would be a main character too. There might also be other characters from the RWBY universe that the knight interacts with, like Ozpin or Qrow.
The knight would obviously be one of the main characters. He could be a new character created specifically for the fanfic, or perhaps a reimagined version of an existing RWBY character with knight - like qualities. The maidens would also be main characters. They could be based on the RWBY girls, or entirely new characters with unique abilities and personalities.
Since it's a fanfiction, it could have the main RWBY characters like Ruby, Weiss, Blake, and Yang interacting with the knight character. Maybe the knight is the new central figure, or perhaps it's a story that focuses on how one of the existing RWBY characters takes on the role of a knight in some form.
Obviously, the knight is one of the main characters. Since it's about his redemption, he'll be central to the story.
Well, surely the Knight is a main character. They are the one on the path of redemption. And the RWBY team members - Ruby, Weiss, Blake, and Yang - are likely to be main characters as well. They could be the ones who inspire the Knight's change or the ones who the Knight has to prove themselves to.
Since I haven't read this specific fanfiction, I can't say for sure. But it could be the Remnant knight as the main character, and perhaps some other RWBY - related characters like Ruby, Weiss, Blake, or Yang might make an appearance.