You might want to check out 'Lost in the Abyss'. Here, the MC is left for dead in a mysterious and dangerous world, yet finds a way to overcome the odds.
The main characters are a group of survivors. Usually, they are presented as a diverse set of individuals with different skills and personalities. They could be a tough - looking guy who is good at combat, a more level - headed person who can strategize, a young and agile one, and perhaps someone with medical knowledge. But the exact details are often left open - ended to some extent in the 'left 4 dead graphic novel' to allow readers to imagine.
Well, one of the features of these comics is the complex character development of the witch. The settings are often fantastical and the plot can be full of twists and turns. Also, the colors used in the illustrations might contribute to creating a specific mood.
Percy is surely one of the main characters, as the story is centered around him being left for dead. There might also be the people who left him, though we don't know who they are yet. Maybe there will be a character who discovers Percy and helps him, like a kind - hearted stranger.
Since I don't know the exact 'left for dead true story', I can't say for sure who the main characters are. But usually, there would be the victim who was left for dead and perhaps the people who left them in that situation.
It could be a rogue ninja from another village who has a vendetta against Naruto. This ninja might have set a very elaborate trap that made it seem like Naruto was killed and left his body in a place where his friends would find him and think he was dead.
Well, there are many. One example could be 'The Betrayed Hero's Journey' where the MC is betrayed by his closest allies.
One unique feature is the combination of magic and modern - day horror. In regular Harry Potter, it's mainly about magic and wizarding world politics, but in this fanfiction, magic is used to fight off the Left 4 Dead style threats.
Takashi Komuro is one of the main characters. He is a fairly ordinary student who becomes a key figure in the group's survival.
I'm not sure specifically as I haven't read this particular 'Book of the Dead' light novel. But it could have a brave protagonist, perhaps a young scholar who is interested in ancient texts and stumbles upon the 'Book of the Dead'. There might also be an antagonist, like a dark wizard who wants to use the power of the book for evil.
I'm not sure exactly who the main characters are without seeing the film. But they could be the survivors of the situation who were left for dead.