In some versions of 'only man in the world fanfiction', there could be a spiritual or otherworldly entity that interacts with the man. This entity might be guiding him, testing him, or just observing him. So this entity could also be seen as a character in the story, adding an element of mystery and the supernatural to the plot.
Well, as the title implies, the main character is typically the only man. He could be an ordinary person thrust into this extraordinary situation, like a regular office worker who suddenly finds himself alone in the world.
Sometimes, there could be non - human characters that play a role. For example, animals might become important characters. The man could form a bond with a dog or a horse, and they would be like his companions in the otherwise empty world. So, in a way, these animals can be considered secondary characters in such fanfiction.
The main character is obviously the Man without a face. But often, there are other supporting characters. It could be a curious child who tries to understand him. For example, a little boy who follows him around to learn his secrets.
Often, you'll see other Marvel characters as well. For instance, Mary Jane might be there. She could be in danger because of the unjust situation, and Spider - Man has to protect her. Also, characters like J. Jonah Jameson might play a role. He could be either helping or hindering Spider - Man in his fight against injustice, depending on the writer's take.
Often, there are park rangers as main characters. They are the ones who first encounter the dragon - like creature. They might be in awe at first but then realize they need to either protect it or keep it from causing chaos in the park.
Sometimes, there are female characters who are underestimated at first. But as the story progresses, they show their true potential. Maybe it's a shy girl who turns out to be an amazing artist and uses her art to inspire other girls to be confident and take charge in the world.
Often, there is a powerful vampire leader. This character is usually charismatic and has great strength and influence among the vampire community. They are the ones making the major decisions regarding the rule of the world. Another common main character could be a human who somehow gets involved in the vampire world, either as a captive or as a sort of liaison between humans and vampires.
Often, there is a young human who discovers the world of dragons. This character is usually curious and brave, like a teenager named Alex who stumbles upon a dragon's lair and forms an unlikely friendship with a dragon.
Aside from the reincarnated Spider - Man, there could be other important characters like his friends and family from the Ultimate Spider - Man universe. This might include Mary Jane, who could be a love interest or a source of support. And of course, there could be villains such as Green Goblin or Doctor Octopus who play significant roles in the story as antagonists.
Their children can also be important characters. Depending on the fanfiction, they might inherit powers or be involved in the superhero world in some way. For example, a son could show an early sign of having spider - like abilities, and Peter and Mary Jane have to figure out how to handle it while keeping their family safe.
There are also the beast characters. They can range from noble and honorable wolf - like creatures to sly and cunning fox - like beings. In some 'beast world novels', there is a powerful beast king who rules over the different tribes and often has a special relationship with the human protagonist.
Often, there's a brave and curious protagonist. This character is usually the one who drives the story forward, eager to explore the stars. There might also be a wise mentor figure, who has more experience and guides the protagonist. And then there's the sidekick, a loyal friend who is always there to support the main character.