Casey Kasem
Shaggy Rogers (voice) (archive footage)
Acting
Frank Welker
Scooby-Doo / Fred Jones (voice) (archive footage)
Acting
Mindy Cohn
Velma Dinkley (voice) (archive footage)
Acting
Grey DeLisle
Daphne Blake / Dempsey (voice) (archive footage)
Acting
Mark Hamill
Emperor Caesar Saladicus (voice) (archive footage)
Acting
Daran Norris
Ugo DiRinaldi / Shopkeeper / Zombie (voice) (archive footage)
Acting
Tara Strong
Alexandra Viggi (voice) (archive footage)
Acting
Nika Futterman
Rutie Banez (voice) (archive footage)
Acting
Pat Fraley
Uncle Karl (voice) (archive footage)
Acting
Dee Bradley Baker
Crusty McPeet / Keeper (voice) (archive footage)
Acting
Kevin McDonald
Julian Libris (voice) (archive footage)
Acting
Ryan Sheckler
Ryan Sheckler (voice) (archive footage)
Acting
Maurice LaMarche
Additional Voices (voice) (archive footage)
Acting