An old, wise hermit who lives on the outskirts of a village near a dark forest. He has spent years studying the secrets of the shadows and can guide others who are in trouble related to the shadowy mysteries. His knowledge would be crucial in the story.
A young and curious scientist. She is constantly exploring the remnants of the old world, trying to find ways to use the forgotten knowledge to improve the current situation. Her inquisitive nature often gets her into trouble but also leads to great discoveries.
A young, curious orphan who often sneaks out during the dark of night and discovers a hidden world in the city, filled with all sorts of strange characters.
It could be a new character who was born with the shadow release ability but was hidden away from the ninja world until now. They would be the center of the story as they learn about their powers and face the challenges that come with it.
A pyromancer could be an interesting main character. They have a natural affinity for fire, so they might be either trying to preserve the Age of Fire or manipulate it for their own ends. Their powers could lead them to discover secrets about the Age of Fire that no one else knows.
The main characters are, of course, Dark Sonic and Shadow. Dark Sonic is a more menacing and chaotic version of Sonic. He has a darker personality and often acts on more primal instincts. Shadow, on the other hand, is a complex character with a tragic past. He is a powerful hedgehog created by humans. In the fanfiction, they are the central focus, with their interactions driving the story forward.
A young Twi'lek girl with extraordinary Force - sensing abilities could be a new character. She could be an orphan who was raised in the slums of a planet but discovers her powers and is sought after by both the Jedi and Sith. Another could be a Mandalorian warrior who has his own code of honor and gets involved in the Jedi - Sith conflict in Dark Destiny. And a droid with a malfunctioning protocol but a unique ability to detect dark side energy could also be an interesting addition.
Cynder could be a key character. She has a connection with Spyro and could play a role in helping Dark Spyro either come to terms with his powers or in fighting against a common enemy.
It could also be an existing character from the Harry Potter series like Hagrid. Given his love for all creatures, including some that are considered dangerous, he could be at the center of a story about the 'Lord of Dark Creatures'. He might be trying to protect these creatures from those who would use them for evil purposes or trying to rehabilitate them.
The main character is, of course, Shadow the Hedgehog himself. He is the central figure in this dark story. And then there's Dr. Eggman. He often plays a role in Shadow's story, either as an antagonist trying to use Shadow for his evil schemes or as someone who is involved in the events that led to Shadow's creation. There are also other characters like Sonic and his friends who sometimes cross paths with Shadow in this story, and their interactions add more depth to Shadow's dark journey.
A mysterious elven archer could be added. This archer could be on a quest for revenge against the orcs and initially see Bruz as just another target. But as the story progresses, they realize that Bruz is different and they could end up working together.