Frank Welker
Scooby-Doo / Fred Jones (voice)
Grey DeLisle
Daphne Blake (voice)
Matthew Lillard
Shaggy Rogers (voice)
Kate Micucci
Velma Dinkley (voice)
Dee Bradley Baker
Sea Creature / Malt Shop Walt / Zombie (voice)
JB Blanc
Atticus Fink / Director (voice)
Christian Lanz
Bryan Lakeshore / Mummy (voice)
Scott Menville
Junior (voice)
Cassandra Peterson
Drella Diabolique (voice)
James Arnold Taylor
Chet Brickton / Narrator (voice)