All Cast

Casey Kasem

Casey Kasem

Shaggy Rogers (voice) (archive footage)

Frank Welker

Frank Welker

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

Mindy Cohn

Mindy Cohn

Velma Dinkley (voice) (archive footage)

Grey DeLisle

Grey DeLisle

Daphne Blake / Dempsey (voice) (archive footage)

Mark Hamill

Mark Hamill

Emperor Caesar Saladicus (voice) (archive footage)

Daran Norris

Daran Norris

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

Tara Strong

Tara Strong

Alexandra Viggi (voice) (archive footage)

Nika Futterman

Nika Futterman

Rutie Banez (voice) (archive footage)

Pat Fraley

Pat Fraley

Uncle Karl (voice) (archive footage)

Dee Bradley Baker

Dee Bradley Baker

Crusty McPeet / Keeper (voice) (archive footage)

Kevin McDonald

Kevin McDonald

Julian Libris (voice) (archive footage)

Ryan Sheckler

Ryan Sheckler

Ryan Sheckler (voice) (archive footage)

Maurice LaMarche

Maurice LaMarche

Additional Voices (voice) (archive footage)