I don't have enough information about 'che graphic novel' to determine the main characters. It could be a hero on a quest, a group of friends in a unique situation, or a single individual dealing with personal struggles.
Since we don't know the details of 'che graphic novel', we can't name the main characters. But typically, main characters in graphic novels can range from a young protagonist trying to find their place in the world, like in a bildungsroman - type story. Or it could be a team of superheroes, each with their own special powers and personalities, coming together to fight a common enemy. It all depends on the genre and the story that the 'che graphic novel' is trying to tell.
As I'm not familiar with the 'che graphic novel' in question, it's impossible to say who the main characters are. However, in many graphic novels, the main characters are often complex individuals with their own goals, dreams, and flaws. They could be ordinary people thrust into extraordinary circumstances, or they could be extraordinary beings in a normal world.