Maddie Blaustein

as Dr. K / Chef Kawasaki (voice)

James Carter Cathcart

as Mong / Cerebrix (voice)

Darren Dunstan

as Splinter (voice)

Wayne Grayson

as Michelangelo (voice)

Ted Lewis

as King Dedede / Escargoon (voice)

Nicole Oliver

as Dorothy Cramp (voice)

Lisa Ortiz

as Amy Rose (voice)

Frederick B. Owens

as Ace Anderson (voice)

Rodger Parsons

as The Voice (voice)

Mike Pollock

as Dr. Eggman / Meat / Narrator (voice)

Andrew Rannells

as Jack Kowalski / Connor / Len Tao / Chief Bookem / Decoe (voice)

Sam Riegel

as Donatello (voice)

Sean Schemmel

as Amidamaru / Rio (voice)

Michael Sinterniklaas

as Leonardo (voice)

Eric Stuart

as Dialbolic / Meta Knight (voice)

Veronica Taylor

as April O'Neil / Abby / Lucien Cramp (voice)

Kerry Williams

as Tiff (voice)

Oliver Wyman

as Morty Oyamada (voice)

Makiko Ohmoto

as Kirby (voice)

Kayzie Rogers

as Tuff (voice)

Gregory Abbey

as Raphael (voice)

Marc Thompson

as Kid Muscle / TMNT narrator / Wayne Cramp (voice)

Scott Rayow

as Cubix / The Shredder (voice)

Jason Griffith

as Sonic the Hedgehog (voice)

Amy Birnbaum

as Mabel (voice)

Amy Palant

as Miles "Tails" Prower (voice)

Sebastian Arcelus

as Yoh Asakura (voice)

Jim Napolitano

as Kabu (voice)