Shaggy & Scooby-Doo Get a Clue!

Frank Welker

Scooby-Doo (voice)

Scott Menville

Shaggy Rogers / Dr. Trebla / Additional Voices (voice)

Jim Meskimen

Robi / Agent #1 (voice)

Casey Kasem

Uncle Albert (voice)

Jeff Bennett

Dr. Phibes / Agent #2 (voice)