There could be a human character who befriends a dragon shifter. This human might play an important role in helping the dragon shifter navigate the human world or vice versa. Another main character could be an antagonist, perhaps a powerful wizard or another dragon shifter with evil intentions, who tries to disrupt the peace or gain power at the expense of others.
It's possible that there are multiple dragon shifter characters who are part of a clan or group. One might be the leader, strong and wise, guiding the others. And then there could be a young and inexperienced dragon shifter who is learning from the more senior ones. Their interactions and the development of their relationships would be important elements of the story.
Goku is one of the main characters. He is a Saiyan with incredible strength and a kind heart. Vegeta is also important, a proud Saiyan prince. And there's Bulma, the smart inventor who is often involved in the adventures. There are many others like Piccolo too.
Since I haven't read it, I can't say for sure. But I would expect the white dragon to be one of the main characters.
I don't know for sure, but it could be a dragon as one of the main characters, considering the title. Maybe there's also a brave knight or a wizard who has to deal with the dragon.
Since I haven't read the 'dragon hoops graphic novel', it's difficult to say exactly. However, in a typical graphic novel with a unique concept like this, there could be a diverse set of characters. There might be an old sage - type character who has some knowledge about the dragon hoops but needs the help of younger, more energetic characters to fully unlock their potential. And of course, there could be antagonists who want to use the hoops for evil purposes.
The dragon rider is surely one of the main characters. There might also be the dragon itself as a key character.
The main characters in the 'Dragon Pearl' graphic novel are likely to be diverse. There could be a fearless warrior whose strength and courage are put to the test in the search for the dragon pearl. Another character could be a cunning thief who initially wants to steal the pearl for personal gain but then has a change of heart. And of course, there might be a powerful dragon who guards the pearl and has its own motives and backstory.
Some of the main characters are likely to be members of the Targaryen family.
Since I haven't read it, I can't say for sure. But it could have a dragon tamer as a main character, someone who tries to control the resurrected dragon.
I'm not sure exactly, but they are likely to be the dragon masters themselves.
The dragon prince himself is surely one of the main characters. There might also be some human characters who interact with him, like a brave knight or a wise wizard.