Who are all the racers in Sonic and Sega All Stars Racing

Sonic the Hedgehog
Miles "Tails" Prower
Doctor Eggman
Amy Rose
Shadow the Hedgehog
AiAi
Samba de Amigo
Billy Hatcher
Knuckles the Echidna
Big the Cat
Beat
Ulala
B.D. Joe
Zobio and Zobiko
Ryo Hazuki
Jacky Bryant and Akira Yuki
Mobo and Robo
Chuih, ChuBei, ChuPea and ChuBach
Opa-Opa
Alex Kidd
Banjo and Kazooie
Avatar (Xbox 360)
Mii