People say that there's too many characters, but I think most of the original characters are memorable, like Sally Acorn, Sally's parents (Maximillian and Alicia), Rotor Walrus, Bunnie Rabbot, Antoine D'Coolette, Nicole the Holo-Lynx, who was created by Rotor's alternate future self, Saffron Bee, Uncle Chuck, Sonic's parents (Bernadette and Jules), the Brotherhood of Guardians, Knuckles' parents (Lara-Le and Locke), Rita-Le, Gala-Na, Wynmacher (Knuckles' stepfather), Kneecaps (Knuckles' younger half-brother), the Wolf Pack, Dimitri, Julie-Su, Lara-Su (Knuckles and Julie-Su's daughter), Jani-Ca (The Dark Mobius version of Lara-Su), Remington, Doctor Finitevus, Scourge the Hedgehog (Sonic's Anti-Mobius counterpart), Rosy the Rascal (Amy's crazed Anti-Mobius counterpart), Fiona Fox (who betrayed Tails to be in love with Scourge), Mina Mongoose, Rob O' the Hedge, who is obviously based off of Robin Hood, Lien-Da (Julie's main enemy and Eggman's general), the Iron Queen, who wields a combination of science and magic called Magitek, Bride of the Conquering Storm, who people associate with Espio, Ixis Naugus (an elemental wizard who is a Rhino-Bat-Lobster hybrid), Geoffery St. John (a skunk who is Naugus' student), Shard the Metal Sonic, who started out as being closely based off of Metal Sonic, but later became his own character, and is Lord Danny's favorite version of Metal Sonic, the Ancient Walkers, the Neo Walkers (Aurora, Athair, and Merlin Prower), Enerjak, whose near-limitless power is kind of overkill for a demigod (demigods don't usually have near-limitless power unless they are transcendent), and one of the best Sonic villains from outside the games; Mammoth Mogul, who founded the Order of Ixis, and is the creator of Ixis Magicks. I know, that is a lot of characters, but they're all cool.