Since I haven't read 'the wild boys novel', it's hard to say for sure. However, it's likely that the main characters are the wild boys. There might also be other supporting characters like an old hermit who gives them advice, or a villain who tries to stop their adventures. Maybe there are some local tribespeople if the story is set in an exotic location.
Since I don't know the exact 'Wild Boys Story', I can't say for sure. But generally, it would be the wild boys themselves. There might be a leader among them, a boy who is the most adventurous or has the most ideas.
Since I don't know the specific 'wild man novel', I can't say for sure. But it could be the wild man himself as the main character, and perhaps there are other characters like those who try to tame him or those he encounters in the wild.
I'm not sure as I haven't read the 'wild fire novel'. But usually, the main characters are the ones who drive the plot forward. They could be a hero on a quest, a love interest, or an antagonist causing trouble.
As I don't know the specific 'the wild ones novel', the main characters could be a group of outcasts. They could be young people who are tired of the constraints of their society and decide to break free. Maybe there's a leader among them who is the most daring and comes up with all the wild plans. There could also be a character who is a bit more hesitant at first but then gets fully immersed in the wild lifestyle as the story progresses.
There might also be characters that interact with the wild geese, such as a bird watcher or a farmer who lives near their nesting grounds. The bird watcher could be fascinated by their behavior and try to understand them better, while the farmer might have a more practical relationship with them, perhaps having to deal with the geese eating his crops.
There might be a love interest. This character could be someone who either complements the main character's wild heart or is in contrast to it. For instance, a more reserved person who is drawn to the wild - hearted protagonist. Also, there could be a mentor - like figure who tries to guide the main character on their journey.
I'm not entirely sure without reading it more closely, but usually there is a protagonist who drives the story forward. There might also be a love interest, an antagonist who creates conflict, and some supporting characters that add depth to the story.
Since it's called 'kings of the wild', perhaps there are leaders who are trying to assert their dominance. There could also be some sort of sidekicks or advisers to these 'kings'. It's also possible that there are outcasts or rebels who oppose the 'kings' and play important roles in the story.
I don't know since I haven't read it. But it could have a protagonist who is a rebel or an adventurer.
As I haven't read the novel, I can't say for sure who the main characters are.