A lot! You got the Knuckles Clan, the dark brotherhood, the nocturnus tribe and a lot and lot of others.
Every one that isn't an echidna
amy rose is an echidna.
Sonic likes Shade as a friend.
Knuckles the Echidna
He is a red echidna.
An echidna
Knuckles is the red Echidna in sonic x
knuckles love 3 girl call rouge the bat from sonic x, Sonia the hedgehog from sonic underground and julie-sue the echidna from sonic comic but he did not like shade the echidna and tikal the echidna
Knuckles is a short beaked echidna and not as fast as the other sonic characters but has strength.He is an echidna because of his nose, porcupines don't have as narrow snouts as echidna's do.
Sonic 3.
She a Echidna.
Are you sure he's an Echidna? He might be a hedgehog, and if he is, he's called silver.