Since it's a 'night witch' graphic novel, the main character is surely the night witch. Maybe there is a love interest, a human or another magical creature that she has a relationship with. And perhaps there is an antagonist, like an evil wizard or a demon who tries to thwart her plans.
The most prominent character would be the night witch, no doubt. In addition to that, there could be a group of characters she is associated with. For instance, there might be a coven of witches that she is part of, and within that coven, there could be other characters with their own personalities and story arcs. There could also be a character who is her nemesis, constantly creating obstacles for her. And there may be a character who serves as her guide in the world of magic, teaching her new spells and how to control her powers better.
The 'night witch graphic novel' might be centered around a witch who operates during the night. It could include elements such as her using spells, interacting with other supernatural creatures, and trying to achieve certain goals. For example, she could be on a quest to find a rare magical ingredient only available at night, or she might be fighting against an evil force that emerges in the darkness.
The main character is likely the witch boy himself. There might also be other witches in his family or community, like an older female witch who could be a mentor or a strict aunt - like figure who enforces the rules of the witch world.
I don't know the specific main characters without more information. It could be the witch doctor themselves, of course.
In the 'Akata Witch' graphic novel, the central character is the Akata witch. She is the one whose story we follow. Besides her, there may be a cast of characters. There could be a wise old wizard or witch who serves as her mentor, guiding her through the world of magic. There may also be her peers, other young witches or magic - inclined individuals, with whom she forms friendships or rivalries. These characters together create the complex web of relationships and interactions that drive the plot forward.
I'm not sure who the main characters are without reading it. But they are probably witches or wizards.
Since I haven't read it, I can't say for sure. But it might have the basic witch herself as the main character. There could also be her familiar, like a black cat or an owl.
The main character is the witch boy himself. He is the one who defies the norms. There are also likely his family members, such as his parents who may initially oppose his interest in witchcraft as it goes against the family and community traditions. And there could be other kids in the community who either support or oppose him.
I'm not sure exactly, but there's probably the okay witch herself.
There could be some other magical creatures that interact with the lunch witch. For example, a talking cat that helps her in the kitchen while she's preparing her magical lunches. Or there might be a group of school children who discover the lunch witch's powers and become involved in her story.
I'm not sure who the main characters are exactly. Maybe there's a witch as a main character.