I'm not sure specifically as I haven't read the novel. But generally, in a novel with such a title, there could be a protagonist who is perhaps a survivor. Maybe someone who has witnessed the destruction represented by the 'ashes' and is trying to make a new start, which is somehow related to the'red' concept.
There could be an older, wiser character who has seen it all - the good times and the bad times that led to the 'ashes'. This character could act as a guide for a younger, more naive character. The younger one might be associated with the'red' in the sense of being full of life and potential, and together they face the challenges presented in the novel.
I don't know the main characters in this novel as I haven't read it. But they could be two lovers, perhaps named something romantic like Lily and James.
The main theme could be about survival. In many novels, the color red can symbolize passion, danger or blood, and ashes often represent destruction or the aftermath of something. So it might be about characters surviving in a world filled with destruction and the passion to overcome difficulties.
Perhaps there's a character who has some sort of special ability or connection to the environment of snow and ashes. This character's actions and decisions could drive the plot forward, and they interact with other main characters to create a complex web of relationships and events within the novel.
I'm not entirely sure without reading it specifically, but it's likely to feature characters from the 'City of Ashes' story. Maybe Clary Fray, who is often central to the plot, dealing with her newfound powers and the challenges in the shadow world.
I'm not entirely sure without reading it, but usually there would be a protagonist who is likely to be a young person facing difficulties. Maybe a character who is trying to rise above their circumstances in this complex world.
I don't know as I haven't read the novel, but I assume there would be Alpha as a main character. There might also be characters who are either friends or foes to Alpha during his or her journey.
I'm not sure as I haven't read the novel specifically. But typically, there would be characters who are involved in the love story. Maybe a male and a female lead who find each other and fall in love in the difficult situation represented by the 'ashes'.
In 'city of ashes full novel', Clary Fray stands out as a main character. She's on a journey to discover more about her powers and her past. Jace Wayland, a confident and strong Shadowhunter, is by her side. Alec Lightwood, who has his own set of skills and internal struggles, is another key character. And Isabelle Lightwood, a fierce and independent female character, also plays a significant role in the story.
Since I haven't read it, it's difficult to say for certain. But they might be characters with different backgrounds and abilities. Maybe there's a strong - willed protagonist who is determined to uncover the secrets of the ember in the ashes, and there could be antagonists who oppose their goals.
Often, the main characters from the original Avatar series like Aang, Katara, and Zuko are still central in 'Ashes to Ashes' fanfiction. Their growth and new adventures are explored further.