Frank Welker
Scooby-Doo (voice) (13 eps)
Scott Menville
Shaggy Rogers / Dr. Trebla / Additional Voices (voice) (13 eps)
Jim Meskimen
Robi / Agent #1 (voice) (13 eps)
Casey Kasem
Uncle Albert (voice) (13 eps)
Jeff Bennett
Dr. Phibes / Agent #2 (voice) (13 eps)