There's no definite answer without knowing the actual fan fiction. But it could be characters who are typically talkative in the original but are silenced in this fan - made story. Or perhaps it's a group of characters who all share the experience of being in a world where silence is the norm, and they each deal with it in different ways, with those different ways being what makes them the main characters.
One interesting aspect could be the unique interpretations of the original source material. Fan fiction often takes existing characters and settings and gives them new storylines. In 'forever silent fan fiction', perhaps there are really deep, emotional story arcs that are not explored in the original work. It might also introduce new relationships between characters that make readers view them in a different light.
Often, in such books, there are characters who represent different sides of the moral spectrum. There could be a cynical and battle - hardened soldier who has seen too much, and then there might be a more idealistic one who is still trying to hold on to their values in the midst of the chaos of the forever war. There could also be characters from the support staff, like medics, who are crucial in dealing with the aftermath of the battles.
I don't know the main characters in 'the forever story' as I haven't read it.
The main character Alicia is crucial as she is the silent patient. Theo, the psychotherapist, is also very important as he tries to unlock Alicia's secrets. There are also other characters like Alicia's husband Gabriel. His relationship with Alicia and his actions play a part in Alicia's state of being. And there are other patients and staff at the clinic which add to the overall atmosphere of the story.
I don't have information about this novel, so I can't say who the main characters are.
The main character is Amber. She is a complex character who drives the story forward with her desires and actions.
There is usually a protagonist who is a soldier in the 'forever war novel'. His experiences are central to the story.
I don't have specific information about the characters in this 'friends forever novel'. But generally, there might be a character who is the leader of the friend group, someone who is the joker, and perhaps a more serious one. These different personalities would interact and create interesting storylines within the context of their friendship.
I'm not sure as I haven't read the novel. But typically, in a novel about friendship, there would be a group of friends, perhaps two or more characters who play significant roles in each other's lives.
Maybe it's a story about two female friends, Lily and Lucy. Lily is an artist who is always full of creative ideas, and Lucy is a scientist who likes to analyze things. They complement each other and their different personalities make their friendship interesting.