Sonic the Hedgehog

Season 1
Knothole Freedom Fighters Chaotix Crew Recurring Team Dark Eggman Empire
 * Sonic the Hedgehog
 * Miles "Tails" Prower
 * Princess Sally Acorn
 * Bunnie Rabbot
 * Antoine Depardieu
 * Rotor the Walrus
 * Knuckles the Echidna
 * Nicole
 * Dulcy the Dragon
 * Vector the Crocodile
 * Mighty the Armadillo
 * Espio the Chameleon
 * Charmy Bee
 * King Acorn
 * Sir Charles Hedgehog
 * Lupe
 * Shadow the Hedgehog
 * Rouge the Bat
 * E-123 Omega
 * Dr. Julian Ivo "Eggman" Robotnik
 * Cluck
 * Scratch
 * Grounder
 * Coconuts
 * Swat-Bots
 * Metamorphia
 * Metal Sonic
 * Super Sonic

Season 2
Heroes Villains
 * Amy Rose
 * Cream the Rabbit and Cheese
 * Big the Cat and Froggy
 * Johnny Lightfoot
 * Porker Lewis
 * Chip
 * Blaze the Cat
 * Sticks the Badger
 * Ray the Flying Squirrel
 * Shorty the Squirrel/Shortfuse the Cybernik
 * Tekno the Canary
 * Snively Robotnik
 * Grimer Wormtongue
 * Orbot and Cubot
 * Fang the Sniper

Season 3
Villains
 * Sonia the Hedgehog
 * Manic the Hedgehog
 * Scourge the Hedgehog
 * Sleet
 * Dingo

Season 4
Hero(es) Antiheroes
 * Chris Thorndyke
 * Chaos
 * Emerl