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)

Robbie Rist
Swifty the Shrew (voice)