Sonic

Sonic is a blue hedgehog who lives on planet Earth. He is always running all over the world at supersonic speeds, hence his name. He is carefree and relaxed but will never tolerate injustice, doing anything he can to help those in need. He also has a quick wit, a short temper, and a fairly cocky attitude.

Tails

Miles, better known by his nickname ''Tails'', is Sonic's faithful sidekick. Despite being bullied for having two tails, he is able to use them to fly like a helicopter. Miles has a knack for machinery and has grown into a confident young fox thanks to Sonic!

Knuckles

Named after his fierce fists that define his fighting style, Knuckles the Echidna is a hot-tempered inhabitant of Angel Island, the last guardian of the Master Emerald. As the last of his race, he bears the weight of a duty that often keeps him isolated from the world below. While he once viewed Sonic with deep-seated animosity, his history of being deceived by Eggman, as well as his time leading the Chaotix, has tempered his legendary gullibility.

Mighty

Mighty is a red and black armadillo with a strong sense of justice. Despite being a vagabond, he has recently decided to assist Charmy, Vector, and Espio in forming the Chaotix detective agency for the time being. His thirst for adventure allows him to be in tune with the natural elements of Water, Fire, and Electricity. Thanks to his shell, Mighty is extremely durable, able to block any incoming projectiles. Just like his name implies, he's remarkably strong!

Shadow

Shadow is the ''ultimate life form'', created in an experiment by Professor Gerald Robotnik aboard the Space Colony ARK. His exact age isn't known, but he is assumed to be around 50 years old. Once hungry for revenge after the death of Maria, Gerald's granddaughter, he was able to remember his promise to her that he would protect humanity and put his life on the line to do so. Shadow was barely able to survive his fall into Earth’s atmosphere by preserving some energy through his secondary inhibitor ring. His memories would be lost however.

Amy

Amy Rose, formerly known as “Rosy the Rascal” is a pink hedgehog with a strong admiration for Sonic. Amy loves fashion, performing tarot card readings, and helping those in need. After being rescued by Sonic from Metal Sonic on Little Planet, she uses her Piko Piko Hammer to defend herself and assist her friends. Her compassion is what allowed Shadow to briefly set aside his quest for revenge and continues to inspire others across her adventures. Feeling nostalgic, she decided to wear an old favorite outfit of hers as she travels along with Sonic on his new adventure.