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)