Beware of Spoilers.
Main Characters
- Adaptational Villainy: Miles Prower as a result of different events than canon. In the game canon, he's The Lancer to Sonic's The Hero. However, in this story, he's the main villain.
- Aimlessly Seeking Happiness: Miles. He's still constructing his inventions in hopes that people would give him the affection he desires. Even after torching his village, he doesn't stop looking for ways that people could love him for something, they just have to...
- Alas, Poor Villain: Miles's death itself is tragic. After Sonic fatally strikes him down, he doesn't have a Villainous Breakdown or say that he is too late to stop the countdown. He just lays there with Sonic, as they both stare at a clock that is ticking away the countdown for the destruction of the city. Miles then reveals to Sonic that nothing will happen when the countdown ends, as it was just his time left on the planet that is running out. He gets a last heart to heart conversation with Sonic, as he lays dying on the ground.
- All of the Other Reindeer: Miles' life without Sonic's presence is tough, as the villagers in his Hated Hometown antagonize him for his traits and appearance, while there is no one to support him at home, as it takes two years of this life and suffering to transform him into a tired, broken mess."Eww! His tails!""Yeah I know, it's disgusting."
- Animal Motifs: Spiders are associated with Miles because he's an Evil Genius and because of his obsession of punishing all of the bad people around the world, like some form of Spider predator, who builds things like spider his web.
- Anti-Hero: Miles tries to become a hero, but it doesn't work out. This is because, while his intentions were genuine, Miles's "methods" of dealing with Egg-Man didn't agree with Sonic's morals.
- Anti-Villain: Miles is a type 1 and 2. Type 2 because of his tragic past of having never been loved and type 1 because he sets his own robot army to deactivate when the countdown reaches zero.
A blue hedgehog who uses his super-speed to save the world, either from Eggman, or from Eggman's killer.
- Anguished Outburst: Miles kills Sonic's Arch-Nemesis Doctor Egg-Man, that in turn gets him chewed out by Sonic and sent to prison.
- Antagonist in Mourning: Sonic's role here is the Hero Antagonist, and he watches as two of his enemies die in this story.
- There's a flashback in the middle of the story where Sonic has a horrified expression when he sees Egg-Man's corpse, and incredulously calls out to him.
- Sonic mourns Miles' death on-screen, calling him Tails, as if he subconsciously knew of the canon timeline and how things shouldn't be this way.
- But he just already knew Miles' nickname as shown in the Interquel, he just wasn't saying it because he didn't thought that Miles deserved to be called by his nickname, as things were way too serious to call him by that nickname. Until the very end, Sonic does remember how he called himself back then, when they first met. Not Miles. But Tails.
A pink hedgehog who wields a hammer. She is Sonic's girlfriend, and she takes her job as a cook very seriously.
Antagonists
A group of people throughout Miles's village who mocked Miles for his tails and destroyed his inventions. It didn't work out for some of them…
A human Villain who tried for years to take over the world. He was Sonic's nemesis, until someone else killed him.
Group of cold Mooks, that were once reprogrammed from Egg-Man's broken down robots, to helpers that rebuilt the city he revaged, but now are being used to cause havoc around and destruction.—-
Others
A Mobian child with a plush rabbit named "Bunbun". She was nearly killed by a robot, only to be saved by Sonic.
A Red Guardian Echidna, he is a part of resistance group against Miles, he doesn't like it when you go on your own against him.