Riven

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)

Jeff Bennett

as (voice)

Heather North

as Daphne Blake (voice) (archive footage)

Dee Bradley Baker

as Keeper (voice) (archive footage)

Mindy Cohn

as Velma Dinkley (voice) (archive footage)

Henry Corden

as Ghost (voice) (archive footage)

Michael Bell

as Mark (voice) (archive footage)

Mel Blanc

as Speed Buggy (voice) (archive footage)

Pat Fraley

as Uncle Carl (voice) (archive footage)