Frank Welker
Scooby Doo / Fred Jones (voice)
Grey DeLisle
Daphne Blake (voice)
Matthew Lillard
Shaggy Rogers (voice)
Kate Micucci
Velma Dinkley (voice)
David Herman
Jack / Sheriff (voice)
Janell Cox
Cat Person / Sister Withers (voice)
Cassandra Peterson
Elvira (voice)
Roger Rose
Lead Cat Person / Narrator (voice)
John Michael Higgins
Alan Smithee (voice)
Travis Willingham
Seaver (voice)
Dave B. Mitchell
Driver / Ferry Captain (voice)