Cast
Frank WelkerScooby-Doo / Fred Jones / Lachlan Haggart (voice)
Casey KasemShaggy Rogers (voice)
Mindy CohnVelma Dinkley (voice)
Grey DeLisleDaphne Blake / Shannon Blake (voice)
Michael BellDuncan MacGubbin / Mcintyre (voice)
Jeff BennettDel Chillman / Sir Ian Locksley / Harpoon Gunner (voice)
John DiMaggioColin Haggart / Volunteer #1 (voice)
Phil LaMarrAngus Haggart / Volunteer #2 (voice)
Sheena EastonProfessor Fiona Pembrooke (voice)
