Roger Craig Smith
Sonic the Hedgehog / Dave the Intern / Young Gogoba (voice) (104 eps)
Colleen O'Shaughnessey
Miles 'Tails' Prower / Zooey / Mrs. Vandersnout / Belinda (voice) (104 eps)
Travis Willingham
Knuckles the Echidna / Soar the Eagle / Obliterator Bot / Old Monkey / Mr. Slate (voice) (104 eps)
Cindy Robinson
Amy Rose / Perci / Elderly Gogoba / Justin Beaver (voice) (104 eps)
Nika Futterman
Sticks the Badger / Diane Aardvark (voice) (104 eps)
Mike Pollock
Dr. Eggman / Fastidious Beaver / Mayor (voice) (104 eps)
Kirk Thornton
Orbot / Shadow the Hedgehog (voice) (104 eps)
Wally Wingert
Cubot / Gogoba Chief / Dixon / D.B. Platypus (voice) (104 eps)
Bill Freiberger
Comedy Chimp / Lady Walrus (voice) (104 eps)
Robbie Rist
Swifty the Shrew (voice) (1 eps)