Michael Sinterniklaas

Leonardo (voice)

Wayne Grayson

Michelangelo (voice)

Sam Riegel

Donatello (voice)

Gregory Abbey

Raphael (voice)

Darren Dunstan

Splinter (voice)

Marc Thompson

Casey Jones (voice)

Veronica Taylor

April O'Neil (voice)

Scott Rayow

The Shredder (voice)

Sebastian Arcelus

1988 Raphael (voice)

David Wills

1988 Splinter / 1984 Shredder (voice)

Rebecca Soler

1988 April O'Neil (voice)

Jason Griffith

1984 Leonardo / Additional Voices (voice)

Sean Schemmel

1984 Raphael / Additional Voices (voice)

Kevin Eastman

Kevin Eastman (voice) (uncredited)

Peter Laird

Peter Laird (voice) (uncredited)