Sonic Nitro

 is an American action comic book series based on Sega's Sonic the Hedgehog video game franchise, published by IDW Publishing.

Synopsis
Set in a world where Doctor Eggman has conquered the world, a brave yet occasionally reckless hedgehog known as Sonic joins the Freedom Fighters to take down Eggman and other threats.

Main

 * The Freedom Fighters. A group of heroic Mobians who oppose Eggman's empire, consisting of:
 * Sonic the Hedgehog - A brave blue hedgehog who can run in superhuman speeds as he becomes a member of the Freedom Fighters in a race to stop Eggman.
 * Miles "Tails" Prower - Sonic's best friend, and a young twin-tailed fox who can fly by spinning his Tails, and is a mechanical genius, having built several tools for the Freedom Fighters.
 * Sally Acorn - A serious, but kind-hearted female chipmunk who is the leader of the Freedom Fighters, Sonic's love interest, and Tails's caring adoptive sister who is a skilled fighter and scientific genius. Along with use of high-tech (including energy boots which allow her to match Sonic's speed, and Ring Blades attached to her arms), Sally also possesses a Chaos Gem in her necklace which allows her to create astral projections.
 * Amy Rose - Sonic's cousin, and a pink hedgehog who wields a red and gold hammer pulsing with Chaos energy. She has a slightly obsessive crush on several people, including Knuckles and Shadow.
 * Knuckles the Echidna - A short-tempered, yet noble red echidna with superhuman strength and spiked fists. He is the guardian of the Master Emerald in Angel Island as he befriends Sonic and surprisingly joins the Freedom Fighters.
 * Bunnie "Rabbot" the Rabbit - A goofy, but friendly rabbit who has been partially roboticized by Robotnik as she joins the Freedom Fighters, heading to fight against his androids.
 * Antoine D'Coolette - A rather cocky coyote swordsman who has trained under an ancient order of knights known as the Gilded Blades as he soon joins the Freedom Fighters having both a friendly rivalry with Sonic and a crush on Bunnie.
 * Nicole the Holo-Lynx - Sally's A.I. assistant, best friend and surrogate sister. Initially a artificial intelligence entity without any form, Nicole evolves thanks to the energies of a Chaos Ring, allowing her to take on the physical form of a Mobian female lynx.
 * Rotor the Walrus - A member of the Freedom Fighters who is also a mechanical genius, known for being quite stoic and unable to express himself properly, being seen as aloof.

Supporting

 * Prof. Charles "Chuck" the Hedgehog - Sonic's uncle, and the Freedom Fighters' mentor.
 * Cream the Rabbit - A young and friendly rabbit who can communicate with Chao. She is Bunnie's younger sister, Amy's best friend, a fan of the Freedom Fighters, and has a crush on Tails.
 * Cheese the Chao - Cream's pet Chao and companion.
 * Vanilla the Rabbit - Bunnie's and Cream's mother, who supports Bunnie's decision to join the Freedom Fighters, and also cares about hers and Cream's well-being.
 * Dulcy the Dragon - TBD
 * The Chaotix - A team of Mobius's greatest detectives and investigators. They consist of:
 * Vector the Crocodile - The team's leader and muscle, who is known for his long passion for money.
 * Espio the Chameleon - TBD
 * Charmy Bee - TBD
 * Tangle the Lemur - TBD
 * Whisper the Wolf - TBD
 * Mighty the Armadillo - TBD
 * Ray the Flying Squirrel - TBD
 * Team Dark - A faction of rogues who rebel against Eggman's forces, and occasionally helps the Freedom Fighters. They consist of:
 * Shadow the Hedgehog - The all-serious leader of Team Dark, a red-stripped black hedgehog with Chaos energy powers, and the main result of Project Shadow created by Eggman's grandfather Professor Gerald Robotnik, initially clashing against Sonic due to being manipulated by Eggman, eventually learning of his manipulation and forming Team Dark.
 * Rouge the Bat - Shadow's closest partner and friend, and the second-in-command of Team Dark, she is a female bat who is fascinated with jewels.
 * Talon the Jackal - A former member of the Jackal Squad who went rogue during a mission to assault a Mobian ship carrying innocent people (including children). He eventually joined Team Dark as a means to earn his redemption.
 * E-123 Omega - A robot member of Team Dark who seeks revenge on his creator Eggman for deactivating and abandoning him, slowly gaining a love for non robotic life forms.
 * The Sol Realm - A realm from the future that has been tied to Mobius after experiments by Robotnik, being allies to the Freedom Fighters.
 * Blaze the Cat - TBD
 * Silver the Hedgehog - TBD
 * Marine the Raccoon - TBD
 * Emerl - TBD
 * E-102 Gamma - A super robot of the E-1000 series originally created by Eggman to hunt the animals of Mobius until he defected against his creator after an encounter with Amy, who encouraged him to be better. He was damaged during a fight against Alpha, but was later revived by Emerl, and recruited by Blaze.
 * Honey the Cat - A popular and friendly fashion designer who is extremely popular at Mobius, surprisingly being against the Robotnik Regime as Tails has a slight crush on her.
 * Hope Kintobor - A human child who was orphaned by androids working for Robotnik. She is good friends with the heroic Mobians, including the Freedom Fighters and Team Dark, especially Shadow (as Hope reminds him of his deceased friend Maria).
 * The Wild Emerald Tribe - A clan of feral Mobians who dedicate their lives protecting the jungle of Mobius. They consist of:
 * Valor the White Tiger - The Tribe's leader and male white tiger with superhuman strength and speed, and the ability to control water, and armed with a spear pulsing with Chaos energy. He has history with Sonic, whom he trained when he was younger.
 * Sticks the Badger - Valor's current protegée, and a feral female Badger who wields a boomerang.
 * Longclaw the Owl - A wise female owl who is the Tribe's shaman.
 * Selene the Wolf - A grey wolf and master archer.
 * Butch the Bear - A male grizzly bear with superhuman strength and stamina who is the muscle of the Tribe.
 * The Gilded Blades - An ancient clan of swordsmen created to keep order in Mobius as Antoine trained under and is a member of them. Active members consist of:
 * TBD - TBD

Antagonists

 * Doctor Ivo "Eggman" Robotnik - A villainous and menacing scientist who has taken over Mobius, developing robotic soldiers to enforce his tyrannical rule as he grows obsessed with destroying all resistance. He also dislikes being called "Eggman", which is a nickname which Sonic gave him to mock him.
 * Sage - A cold and stoic artificial intelligence who was created by Robotnik to be his own daughter as she helps him out several times, being able to upload herself inside of his Badniks.
 * Orbot and Cubot - Eggman's loyal henchmen; Orbot (the red orb-shaped robot) is the blunter, more formal of the two, often being totally honest even at Eggman's expense. Cubot (the yellow cube-shaped robot) is the slower, more dimwitted of the two, often misunderstanding the meaning of other characters' statements and metaphors.
 * Metal Sonic - A psychopathic robotic dopplegänger of Sonic created by Eggman to be his match as soon he begins to gain sentience, growing obsessed with both power and destroying Sonic.
 * Ixis "Walter" Naugus - TBD
 * The Deadly Six - A group of villainous Zeti (ancient aliens residing in the Lost Hex) who are territorial rivals with Eggman, but are also enemies to the Freedom Fighters. They consist of:
 * Zavok - The fearsome leader of the Deadly Six who is obsessed with power, and wants to conquer Mobius for himself.
 * Zeena - A fashion-savvy Zeti, and the only female member of the Deadly Six. She has a intense rivalry with the female Freedom Fighters, and obsesses about making them jealous.
 * Zazz - A hyperactive, but psychotic Zeti, and member of the Deadly Six, known for his love for violence and easy to have boredom.
 * Zor - A existentially nihilist Zeti, and the youngest member of the Deadly Six.
 * Master Zik - The founder and former leader of the Deadly Six, and the oldest of the Zeti, having trained Zavok.
 * Zomom - A obese and dim-witted Zeti with an eating disorder, and a member of the Deadly Six.
 * The Jackal Squad - An organization of jackals who are Mobius's most feared thieves, mercenaries and killers. Like the Deadly Six, the Squad members are enemies to both the Freedom Fighters and Eggman's forces. They consist of:
 * Infinite - Eggman's former henchman who defected against him after being subjected for an experiment involving the Phantom Ruby, a gemstone of chaotic power. Donning a mask to hide his scars (including his blinded right eye), Infinite formed and became the leader of the Jackal Squad.
 * Banshee - The second-in-command of the Squad, and a female Jackal who can perform supersonic soundwave attacks with her screams and howls.
 * TBD - TBD
 * TBD - TBD

Neutral

 * The Babylon Rogues - A group of thieves and Extreme Gear skateboarders, whose ambitions often clash with both the Freedom Fighters and Eggman. They consist of:
 * Jet the Hawk - The Rogues' ambitious, cocky leader, and a green hawk. He is one of Sonic's rivals in speed.
 * Wave the Swallow - A sassy, and sometimes ill-tempered swallow who is smartest of the Rogues, and the mechanical genius.
 * Storm the Albatross - A hulking and somewhat dimwitted albatross, who is the muscle of the Rogues.

Minor characters

 * Professor Gerald Robotnik - Eggman's grandfather and Shadow's creator.
 * Maria Robotnik - Gerald's granddaughter, Eggman's cousin, and Shadow's first human friend.