Casey Kasem as Shaggy Rogers (voice)

Kellie Martin as Daphne (voice)

René Auberjonois as (voice)

Don Messick as Scooby-Doo (voice)

Christina Lange as Velma (voice)

Frank Welker as (voice)

Charlie Adler as (voice)

Vernee Watson as (voice)

Carl Steven as Fred Jones (voice)

Scott Menville as Red Herring (voice)