Sonic must give up his speed when it causes a deafening tone, but Dr. Eggman may have a remedy.
Roger Craig Smith
Sonic / Dave the Intern / Young Gogoba (voice)
Colleen O'Shaughnessey
Tails / Zooey / Mrs. Vandersnout / Belinda (voice)
Travis Willingham
Knuckles / Soar the Eagle / Obliterator Bot / Old Monkey / Mr. Slate (voice)
Cindy Robinson
Amy Rose / Perci / Elderly Gogoba / Justin Beaver (voice)
Nika Futterman
Sticks / Diane Aardvark (voice)
Mike Pollock
Dr. Eggman / Fastidious Beaver / Mayor (voice)
Kirk Thornton
Orbot / Shadow the Hedgehog (voice)
Wally Wingert
Cubot / Gogoba Chief / Dixon / D.B. Platypus (voice)
Bill Freiberger
Comedy Chimp / Lady Walrus (voice)
