A/N: More will come after the 4th movie is out, still in the development phase
Plot: Sonic the Hedgehog, joined by new hero named Amy, faces a new technological nemesis known as Metal Sonic.
Ben Schwartz as Sonic (A cocky blue hedgehog, Tom and Maddie's middle foster son and Tails and Knuckles' adoptive brother who wields the power to run at super sonic speeds and is the Leader of Team Sonic)
Kristen Bell as Amy Rose (A feisty pink hedgehog wielding a large hammer)
Colleen O'Shaughnessy as Tails (An intelligent amber and white two-tailed fox, Stella's childhood friend and sweetheart, Sonic's best friend, Sonic and Knuckles' younger adoptive brother and Tom and Maddie's youngest foster son who can fly with his two tails and is the Intelligence of Team Sonic who can create all sorts of gadgets)
Mckenna Grace as Stella Silverbolt (A sassy orange furred and blonde haired Eastern Barred bandicoot, Tails' childhood friend and sweetheart who wields ice powers and is Chloe's owner and best friend, Steele's daughter, Shadow's adoptive sister and the Second-in-command of Team Sonic)
Idris Elba as Knuckles (A hot-headed red echidna, the Last Echidna Warrior, Tom and Maddie's oldest adoptive son and Sonic and Tails' older adoptive brother who wields super strength and the ability to use the Flames of Disaster; flames that engulf his fists to enhance his power and is the Muscle of Team Sonic)
Keanu Reeves as Shadow Silverbolt (A gruff black furred and red striped hedgehog, Steele's adoptive son and Stella's adoptive brother and the Backbone of Team Sonic who wields super speed, teleportation skills and has extreme strength)
James Marsden as Tom (The Sheriff of Green Hills, Maddie's husband and Sonic, Tails and Knuckles' adoptive father)
Tika Sumpter as Maddie (Tom's wife and Sonic, Tails and Knuckles' adoptive mother)
Colin Farrell as Steele Silverbolt (A calm rusty red bandicoot, Stella's father and Shadow's adoptive father)
Jim Carrey as Dr. Robotnik/Eggman (A mad scientist and Sonic's archenemy)
Lee Majdoub as Stone (Robotnik's assistant)
Ben Kingsley as TBA
Matt Berry as TBA
Nick Offerman as TBA
Richard Ayoade as TBA