There is Sonic, Amy, Shadow, Silver, and Mephiles the Dark, who is actually a dark spirit in the form of a hedgehog.
June 23rd
No episode in all the sonic the hedgehog shows does it show sonic the hedgehog's feet
Yes he was the voice for all three hedgehogs (Sonic, Sonia, and manic) in Sonic Underground, also the voice for Sonic in Adventures of Sonic the Hedgehog and Sonic SatAM.
Super sonic and that is all I know
knuckles silver metal sonic sonic shadow that's all I know
yes you have to in order to battle solaris
Sonic Generations, Sonic All Stars Racing Unlimited
sega is the owner of sonic the hedgehog and all sonic related characters
i think it's the:sonic,knuckles,shadow,blaze,silver,amy,nazo,super sonic,super shadow,super silver,super amy,super nazo,hyper sonic,shadow and knuckles.
The Sonic franchise is somewhat infamous for being bloated with cheap, gimmicky characters and hedgehogs are among the most commonplace character species in the games, cartoons, and comics. From video games, the "true canon" of the series, we have Sonic, Shadow, Amy, Silver, Mephiles (technically the mind of Solaris, but appears as a hedgehog), and Metal Sonic (again debatable since he's technically a robot built by Robotnik and has several versions). From the cartoons, we were introduced to some more hedgehogs in the form of Sonic's family from Sonic Underground: Sonia, Manik, Uncle Chuck, and Queen Aleena. (It is also assumed that their father was a hedgehog, but he never actually appears nor is he mentioned). From the comics, we have a few more hedgehogs: Scourge or Evil Sonic, and Rob O'Hedge (Amy's cousin).
The character was created without the ability to swim because of a mistaken assumption by Yuji Naka that all hedgehogs couldn't swim.