Shaggy Rogers (voice) (archive footage)
Scooby-Doo / Fred Jones (voice) (archive footage)
Velma Dinkley (voice) (archive footage)
Daphne Blake / Dempsey (voice) (archive footage)
Emperor Caesar Saladicus (voice) (archive footage)
Ugo DiRinaldi / Shopkeeper / Zombie (voice) (archive footage)
Alexandra Viggi (voice) (archive footage)
Rutie Banez (voice) (archive footage)
Uncle Karl (voice) (archive footage)
Crusty McPeet / Keeper (voice) (archive footage)
Julian Libris (voice) (archive footage)
Ryan Sheckler (voice) (archive footage)
Additional Voices (voice) (archive footage)