Since we don't have much information about this 'first law graphic novel', it's hard to determine the main characters. However, it could be that there is a group of characters. For example, there might be a wise old mentor figure who knows a lot about the 'first law' and guides the younger, more impulsive characters. There could also be an antagonist who constantly tries to undermine the 'first law' for their own gain.
I'm not sure who the main characters are without reading it. But they could be some sort of law enforcers if the story is about upholding the first law.
The main characters include Logen Ninefingers, who has seen a lot of bloodshed and is trying to find his place in the world. Glokta, the inquisitor, is a complex character who has endured great pain and uses his position in different ways. Ferro Maljinn, on the other hand, is a strong and independent character, often driving the action forward with her determination.
I'm not entirely sure without more research, but usually there would be a protagonist who drives the story forward. There might also be an antagonist who opposes the protagonist's goals.
Since the title mentions the blade, there might be a character who is either the creator or the keeper of the blade. There could also be an antagonist who wants to use the blade for evil purposes, contrary to the first law. Maybe there's a young apprentice who discovers the blade and gets caught up in the events related to it.
There could be a tribal leader as one of the main characters. This person would be responsible for upholding the 'law of the desert born' within their tribe. They would have to make decisions that affect the survival and well - being of the tribe members. There might also be an outcast character who challenges the existing law and order in the desert - born society.
As I haven't had the chance to read 'the first escape graphic novel', it's hard to say for sure. However, it could be that the main character is a wrongfully accused person, like a framed detective or an innocent bystander caught in a conspiracy. There may be a mentor - like figure who provides guidance on the escape, and some antagonists who try to stop the escape from happening.
Since we don't know the exact 'first poc graphic novel', it's hard to say the main characters. However, they might be characters that embody the struggles and triumphs of poc. Maybe a character fighting against discrimination in a fictional world, or a group of characters trying to preserve their cultural heritage within the story of the graphic novel.
Batman himself is of course one of the main characters. He's the Dark Knight, the protector of Gotham. And I'm sure Commissioner Gordon is in there too, being Batman's ally in the police force. Also, there are likely to be some of his villains like the Joker or Penguin.
There's usually a security guard who has to deal with the animatronics. And there are also some kids who are related to the story in some way.
I'm not sure exactly who the main characters are in 'first northguard graphic novel' as I haven't read it yet. But usually in a graphic novel like this, there would be a hero or a group of heroes.