Sonic the Hedgehog (voice)
Miles 'Tails' Prower (voice)
Knuckles the Echidna (voice) (as Nobutoshi Kanna)
Amy Rose (voice) (as Taeko Kawada)
Shadow the Hedgehog (voice)
Vector the Crocodile (voice)
Blaze the Cat (voice)
Silver the Hedgehog (voice)
Cream the Rabbit (voice)
Rouge the Bat (voice)
E-123 Omega (voice)
Jet the Hawk (voice)
Omochao (voice)
Charmy Bee (voice)
Espio the Chameleon (voice)
Chao (voice)
Dr. Ivo 'Eggman' Robotnik / Dr. Eggman Nega (voice) (as Chikao Ohtsuka)
Sonic the Hedgehog / Shadow the Hedgehog / Jet the Hawk (voice)
Knuckles the Echidna / Vector the Crocodile (voice)
Amy Rose (voice)
Vector the Crocodile (voice) (as Jimmy Zoppi) (credit only)
Blaze the Cat (voice) (as Bella Hudson)
Dr. Ivo 'Eggman' Robotnik / Dr. Eggman Nega (voice)
E-123 Omega (voice) (credit only)
Big the Cat (voice)
Mario / Luigi / Wario / Waluigi (voice)
Dry Bowser (voice)
Bowser Jr. (voice)
Donkey Kong / Big the Cat (voice)
Princess Peach / Toad (voice)
Princess Daisy (voice)
Yoshi (voice)
King Boo (voice)
(voice)
(voice) (as Sanae Susaki)
Lakitu (voice)
Shy Guy (voice)
Bowser (voice) (uncredited)
E-123 Omega (voice) (uncredited)