Since we don't have much information about the 'apocalypse 91 graphic novel', the main characters could be a diverse group. They might include a strong - willed leader who is trying to keep everyone together. There could also be a tech - savvy character who is good at finding resources and using technology to their advantage in this new world. And perhaps a mysterious figure who has some knowledge about the cause of the apocalypse but is reluctant to share it at first. These are just some of the possible types of main characters that could be in a graphic novel with such a title.
The main characters in the 'apocalypse 91 graphic novel' are hard to determine without reading it. However, they could be ordinary people thrust into extraordinary circumstances. For example, there could be a young adult who was just starting out in life before the apocalypse and now has to grow up quickly to survive. There might be an older, wiser character who has some skills or knowledge from before that becomes invaluable in the new world. And there could be a character who is on a personal quest, perhaps to find a lost loved one or to uncover the truth behind the apocalypse. Their interactions and growth throughout the story would be what drives the plot forward.