Liberados

Frank Welker

Scooby-Doo / Fred Jones (voice)

Grey DeLisle

Daphne Blake (voice)

Mindy Cohn

Velma Dinkley (voice)

Matthew Lillard

Shaggy Rogers (voice)

Casey Kasem

Colton Rogers (voice)

Harlan Ellison

Self (voice)

Lewis Black

Mr. E / Ricky Owens (voice)

Tony Cervone

Gary (voice)

Clancy Brown

Evil Entity (voice)

Amy Acker

Nova (voice)

Kath Soucie

Nan Blake (voice)

Dee Bradley Baker

Kriegstaffebot (Voice)

John O'Hurley

Skipper Shelton (voice)

Tia Carrere

Judy Reeves (voice)

Tim Matheson

Brad Chiles (voice)

Vivica A. Fox

Cassidy Williams (voice)

Kate Higgins

Mayor Janet Nettles (voice)

Linda Cardellini

Marcie 'Hot Dog Water' Fleach (voice)

Mitch Watson

Ethan / Policeman (voice)

Gary Cole

Mayor Fred Jones Sr. (voice)

Udo Kier

Professor Pericles (voice)

Patrick Warburton

Sheriff Bronson Stone (voice)