Casey Kasem
Shaggy Rogers / Sheriff (voice) (archive footage)
Frank Welker
Fred Jones / Scooby-Doo (voice) (archive footage)
Nicole Jaffe
Velma Dinkley (voice) (archive footage)
Arlene Golonka
Debbie (voice) (archive footage)
Don Messick
Scooby-Doo / Ghost (voice) (archive footage)
John Stephenson
Ghost (voice) (archive footage)
Grey DeLisle
Daphne Blake / Dempsey (voice) (archive footage)
Heather North
Daphne Blake (voice) (archive footage)
Dee Bradley Baker
Keeper (voice) (archive footage)
Mindy Cohn
Velma Dinkley (voice) (archive footage)
Henry Corden
Ghost (voice) (archive footage)
Michael Bell
Mark (voice) (archive footage)
Mel Blanc
Speed Buggy (voice) (archive footage)
Pat Fraley
Uncle Carl (voice) (archive footage)
