Shaggy Rogers (voice) (archive footage)

Casey Kasem

Acting

Scooby-Doo / Fred Jones (voice) (archive footage)

Frank Welker

Acting

Velma Dinkley (voice) (archive footage)

Mindy Cohn

Acting

Daphne Blake / Dempsey (voice) (archive footage)

Grey DeLisle

Acting

Emperor Caesar Saladicus (voice) (archive footage)

Mark Hamill

Acting

Ugo DiRinaldi / Shopkeeper / Zombie (voice) (archive footage)

Daran Norris

Acting

Alexandra Viggi (voice) (archive footage)

Tara Strong

Acting

Rutie Banez (voice) (archive footage)

Nika Futterman

Acting

Uncle Karl (voice) (archive footage)

Pat Fraley

Acting

Crusty McPeet / Keeper (voice) (archive footage)

Dee Bradley Baker

Acting

Julian Libris (voice) (archive footage)

Kevin McDonald

Acting

Ryan Sheckler (voice) (archive footage)

Ryan Sheckler

Acting

Additional Voices (voice) (archive footage)

Maurice LaMarche

Acting