Frank Welker
Scooby-Doo / Fred Jones (voice)
Matthew Lillard
Shaggy Rogers (voice)
Grey DeLisle
Daphne Blake (voice)
Mindy Cohn
Velma Dinkley (voice)
Julie Bowen
Dr. Devon Albright (voice)
Lacey Chabert
Melanie Staples (voice)
Alan Rachins
Dr. Ned Staples (voice)
Paul Reubens
Irv (voice)
Phil LaMarr
Stan (voice)