Scooby-Doo's Original Mysteries

Don Messick

Scooby-Doo (voice) (archive footage)

Casey Kasem

Shaggy Rogers (voice) (archive footage)

Frank Welker

Fred Jones (voice) (archive footage)

Indira Stefanianna

Daphne Blake (voice) (archive footage)

Nicole Jaffe

Velma Dinkley (voice) (archive footage)

Marilyn Schreffler

(voice) (archive footage)