Casey Kasem

as Shaggy Rogers / Sheriff (voice) (archive footage)

Frank Welker

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

Nicole Jaffe

as Velma Dinkley (voice) (archive footage)

Arlene Golonka

as Debbie (voice) (archive footage)

Don Messick

as Scooby-Doo / Ghost (voice) (archive footage)

John Stephenson

as Ghost (voice) (archive footage)

Grey DeLisle

as Daphne Blake / Dempsey (voice) (archive footage)