Sonic: King of Speed

 is an animated TV series based on the Sonic the Hedgehog franchise, airing on Netflix.

Premise
Sonic the Hedgehog has been protecting Mobius for a while as he soon has to face against a returning Doctor Eggman, who has rebuilt his army with plans to enslave Mobius.

Main

 * Sonic the Hedgehog (voiced by Roger Craig Smith) - Mobius's greatest hero, and an anthropomorphic blue hedgehog who can run in supersonic speeds.
 * Sally Acorn (voiced by Lacey Chabert) - Sonic's love interest, and an anthropomorphic female chipmunk with an array of technologic devices and a Chaos-powered crystal which allows her to create Astral projections of herself.
 * Nicole (voiced by TBD) - an AI who is on Sally's phone as she can attach herself to Sally's tech to enhance and upgrade them.
 * Miles "Tails" Prower (voiced by Colleen O'Shaughnessey) - Sonic's best friend, and an anthropomorphic yellow fox who can fly by spinning his twin tails, and is a mechanical genius.
 * Shadow the Hedgehog (voiced by Kirk Thornton) - an amnesiac hedgehog who initially clashed against Sonic but was convinced by Sally to join their crew.
 * Mephiles (voiced by TBD) - a creature of darkness who is fused with Shadow as he initially tries to edge Shadow to darkness before being tamed by Shadow.

Supporting

 * Knuckles the Echidna (voiced by Dave B. Mitchell) - an anthropomorphic red echidna with superhuman strength and spiked fists, he is the stoic guardian of the Master Emerald who focuses on his mission on guarding the emerald no matter the cost.
 * Amy Rose (voiced by Cindy Robinson) - Sonic's 12-year-old younger cousin who shares his speed powers, and wields her Piko Hammer to defend herself. Inspired by Sonic's heroic performance, Amy tries her best to help those in need.
 * Cheese - a derpy yet loyal chao who is friends with Amy, often helping her out and guiding her.
 * Big the Cat (voiced by Kyle Hebert) - a goofy cat who loves fishing as he is buddies with Sonic and quite loves fishing up good fish to eat.
 * Froggy — a cute little frog who is Big's pet as he cares about him heavily and wants him to be safe.
 * Trip the Sungazer (voiced by TBD) - a female sungazer lizard and archaeologist who initially worked under Eggman, until she defected to the side of Sonic's friends after witnessing the kindness of Sally and Amy.
 * Vector the Crocodile (voiced by Keith Silverstein) - the greedy yet friendly and truth loving leader of the Chaotix Detective Agency who often works with Sonic.
 * Dodon Pa (also voiced by Kyle Hebert) - a mysterious creature who loves playing games as he often hosts fun tournaments for Sonic and his friends to compete in.
 * Maria (voiced by TBD) - a mysterious young girl who is tied to Shadow as she often appears in his dreams, helping guide him on the right path.

Antagonists

 * Dr. Ivo "Eggman" Robotnik (voiced by Mike Pollock) - an intimidating mad scientist who wants to rule over all of Mobius, having an army of robotic fiends and henchmen willing to help him with his schemes.
 * Metal Sonic (voiced by TBD) - a Shakespearean yet intimidating android doppleganger of Sonic who wants to replace Sonic, being willing to harm anyone.
 * Hyper Metal Sonic (also voiced by TBD) - a giant and terrifying evolution of Metal Sonic who Metal occasionally turns into as he is far more willing to betray Eggman.
 * Scrambler (voiced by TBD) - a nervous android who is Eggman's loyal assistant as he tries his best to make sure Eggman rules perfectly.
 * Heavy King (voiced by TBD) - a superpowered egg pawn who is one of Eggman's most powerful machinations, secretly planning to overthrow him.
 * Tails Doll - a silent and mass produced doppelgänger of Tails who is used for surveillance, keeping eyes on Eggman's enemies.
 * Infinite (voiced by Liam O'Brien) - a mysterious masked jackal who despises Shadow for a reason he cannot remember as he often both works with and faces against Sonic and his friends.
 * Solaris (voiced by TBD) - a creature of light who is bonded with Infinite and helps power him up, having an eternal rival known as Mephiles.
 * Fang (voiced by TBD) — a cocky rodent bounty Hunter who often works under Eggman as he is sent on missions that can mean the end of him.
 * Polar (voiced by TBD) - a grouchy polar bear who is Fang's partner in crime as he is extremely strong and often works under Fang's orders.
 * Wendy Witchcart (voiced by TBD) - a dark magician who secretly runs an underground fight club as she often both works with and faces against Eggman and Sonic.