Sonic the Hedgehog (voice)
Knuckles the Echidna / Flying Dog Pilot / ARK System Voice (voice)
Shadow the Hedgehog (voice) (as David Humphry)
Miles 'Tails' Prower (voice) (as Conner Bringas)
Amy Rose (voice) (as Jenny Douillard)
Dr. Ivo 'Eggman' Robotnik (voice)
Rouge the Bat / Omochao (voice)
Maria Robotnik (voice)
Prof. Gerald Robotnik / Big Foot Pilot / Hot Shot Pilot (voice)
President of the United Federation (voice)
Secretary / GUN System Voice (voice) (as Sue Wakefield)
Tikal the Echidna (voice) (archive sound)
Menu Voice (voice)
Sonic the Hedgehog (voice) (as Jun-ichi Kanemaru)
Shadow the Hedgehog (voice) (as Kouji Yusa)
Miles 'Tails' Prower (voice)
Knuckles the Echidna (voice) (as Nobutoshi Kanna)
Amy Rose (voice)
Rouge the Bat (voice)
Omochao (voice)
Secretary / GUN System Voice / News Reporter (voice)
Flying Dog Pilot / ARK System Voice (voice) (as Tohru Okawa)
Big Foot Pilot / Hot Shot Pilot (voice) (as Kouji Ochiai)
Chao (voice)
Dr. Ivo 'Eggman' Robotnik / Prof. Gerald Robotnik (voice) (as Chikao Ohtsuka)
Big the Cat (voice) (archive sound) (uncredited)