The dragon rider is surely one of the main characters. There might also be the dragon itself as a key character.
There might be different main characters depending on the specific 'dragon rider novel'. However, generally, the dragon rider themselves are central. They often have unique personalities. For example, they could be brave and fearless, like many heroes in these kinds of stories. And their dragons, which are almost like another main character, have their own quirks and abilities that contribute to the story.
The main character is Alex Rider, of course. He is a brave and intelligent young spy.
I don't know the main characters in 'wave rider graphic novel' as I haven't read it. It could be a young and fearless wave rider as the main character, or perhaps an old - timer who passes on his wave - riding wisdom.
The main character is, of course, Ghost Rider. Johnny Blaze is often the human form associated with Ghost Rider. He made a deal with the devil and as a result, became the Ghost Rider, a spirit of vengeance. There are also other characters like Zarathos, who has a connection to the origin of Ghost Rider's powers.
The main characters are clearly Deadpool and Ghost Rider.
Alex Rider is the main character. And there are likely other characters within the Scorpia organization.
The main character is surely Alex Rider. He is the young and brave spy around whom the story revolves.
The main character is, of course, the Cosmic Ghost Rider. He is a very unique character with a combination of powers.
In some 'dragon rider rwby fanfiction', there could also be side characters from the RWBY world that play important roles in the story. For example, Qrow could be involved, guiding the dragon rider and the RWBY girls in their adventures. Also, the headmasters of the academies might show up to give advice or help in times of need. The dragon rider's dragon could also be considered a main character in a sense, with its own unique abilities and behaviors that affect the story.
Percy is the central figure for sure. Alongside him, his dragon is a crucial character. There might also be other characters like Percy's friends or foes. His friends could support him in his dragon - riding adventures, while his foes could try to stop him or steal his dragon. Maybe there are some wise old mentors in the story who teach Percy about dragon riding and its secrets.