Ethan Spaulding Director Frank Welker Scooby-Doo, Freddy Voice Mindy Cohn Velma Dinkley Voice Matthew Lillard Shaggy Voice Grey DeLisle Daphne Blake Voice Dee Bradley Baker Ranger Knudsen , Woodsman , Fishman , Specter Voice Mark Hamill Deacon , Babyface Boretti , Store Owner Voice Phil LaMarr Darryl Voice Scott Menville Luke , Goofy Kid Voice Stephen Root Burt Voice Tara Strong Trudy Voice Lauren Tom Jessica Voice Jed Elinoff Screenwriter Scott Thomas Screenwriter Sam Register Executive Producer Spike Brandt Producer Tony Cervone Producer