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)