Frank Welker Fred, Scooby Voice Mindy Cohn Velma Voice Grey DeLisle Daphne Voice Matthew Lillard Shaggy Voice Troy Baker Dreamweaver, Young Bronson Stone Guest Voice Lewis Black Mr. E Guest Voice Linda Cardellini Marcy "Hot Dog Water" Fleach Guest Voice Tia Carrere Judy Reeves Guest Voice Phil LaMarr Melvin Keisterbaum Guest Voice Tim Matheson Brad Chiles Guest Voice Patrick Warburton Sheriff Bronson Stone Guest Voice Jason Marsden Horbert Feist Guest Voice Sam Register Executive Producer Spike Brandt Producer Tony Cervone Producer Victor Cook Director Michael Ryan Writer Michael Townsend Writer