Frank Welker
Scooby-Doo / Fred Jones / Motoshondu (voice)
Casey Kasem
Shaggy Rogers (voice)
Mindy Cohn
Velma Dinkley (voice)
Grey DeLisle
Daphne Blake / Shawna (voice)
Jeff Bennett
Crunchy Granville / Fritz / Mr. Keenan (voice)
Mimi Rogers
Maura Ravenmane / Helga (voice)
Kevin Michael Richardson
Sharky Tazo / Stink Eye (voice)
John Stephenson
Zelig (voice)
Eva Almos
Captain Corvina Cloyd (voice)
John Gabriel
Dr. Armand Zola / Worker (voice)
Mikey Kelley
Monroe Hopper (voice)
Kathy Nagler
Sergeant Linda Rauch (voice)
Steve Harwell
Himself (voice)
Steve Blum
Rama Yam / Spencer Johnson (voice)
James Arnold Taylor
Frankie Martin / Shawn (voice)