Well, Sonic is the central figure. But other characters like Amy Rose could be important. She might be heartbroken to see Sonic turn dark and try to use her love for him to bring him back. There could also be some new characters created specifically for this fanfiction. For example, a mysterious character who has the power to either make Sonic darker or has the key to bringing him back to normal.
There could also be some new characters introduced in this fanfiction. Maybe a mysterious figure who has the power to control Dark Sonic or someone who has a connection to the origin of Dark Sonic. These new characters can bring fresh plot twists and new relationships to the story.
Well, it could be about Sonic taking on a darker form or personality. Maybe there's some kind of evil influence that causes him to go dark, like a powerful dark artifact or an encounter with a really bad villain that messes with his mind and makes him turn against his friends.
Well, Sonic is the central figure in the Dark Sonic Story, especially when he's in his dark state. Tails, his sidekick, is likely to be involved. He might be trying to figure out what's wrong with Sonic and how to reverse his transformation. Knuckles, the guardian of the Master Emerald, could also play a role. He may be initially cautious around Dark Sonic, not sure if he's a threat to the Emerald or not. And Amy, who has feelings for Sonic, would be worried about him and try to reach out to the Sonic she knows within the dark exterior.
There could be new original antagonists created specifically for the fanfiction. These might be dark entities that are related to the source of Dark Sonic's power, trying to either control him or use his power to spread chaos in Sonic's world.
The main characters are probably Sonic and an alternate version of Sonic. There could also be other Sonic characters like Tails or Knuckles making appearances to support the Sonics in their rescue mission. But Sonic and his doppelganger would be at the forefront, using their speed and skills to achieve the rescue.
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.
Sonic is most likely the main character. Since it's a Sonic fanfiction, he would be the one to take on the Dark Gaia monster. His friends like Tails or Knuckles could also be in it. Tails might be there to provide technical support, while Knuckles could help in combat or with knowledge about the Dark Gaia entity.
The main character is Sonic. But in a fanfiction about his dark past, other characters like Knuckles could be important. Knuckles guards the Master Emerald, and there could be a story where Sonic's past actions or experiences are related to the Master Emerald. Also, Amy might be in it, as she has a strong connection to Sonic. She could be either a source of comfort for Sonic during his dark times or be somehow involved in the events that caused his past to be so dark.
In this fanfiction, there could be other characters like Knuckles. He might be involved in trying to stop Tails if he's causing trouble. Amy could also be there, perhaps trying to use her compassion to reach out to Tails. And of course, there might be some new, original characters created specifically for this fanfiction, like a mysterious figure who has influenced Tails' turn to the dark side.
In Sonic Heroes Dark Story, Sonic is obviously a main character. He's the speedy hero who can take on enemies with his quick moves. Tails is there too, with his intelligence and ability to fly and create gadgets. Knuckles also plays a crucial part. His strength and knowledge of the Sonic world's secrets help in the fight against the villains in the Dark Story.