Frank Welker
Fred Jones / Scooby-Doo (voice)
Acting
Mindy Cohn
Velma Dinkley (voice)
Acting
Matthew Lillard
Shaggy Rogers (voice)
Acting
Grey DeLisle
Daphne Blake (voice)
Acting
Gene Simmons
Demon (voice)
Acting
Paul Stanley
Starchild (voice)
Acting
Eric Singer
Catman (voice)
Acting
Garry Marshall
Manny Goldman (voice)
Acting
Doc McGhee
Chip McGhoo (voice)
Production
Pauley Perrette
Delilah Domino (voice)
Acting
Rachel Ramras
Shandi Strutter (voice)
Acting
Penny Marshall
The Elder (voice)
Acting
Darius Rucker
The Destroyer (voice)
Acting
Jennifer Carpenter
Chikara (voice)
Acting
Jason Mewes
Worker #1 (voice)
Acting
Kevin Smith
Worker #2 (voice)
Directing
Tony Cervone
Announcer (voice)
Directing
Tommy Thayer
Spaceman (voice)
Acting