Frank Welker
Scooby-Doo / Fred Jones / Lachlan Haggart (voice)
Acting
Casey Kasem
Shaggy Rogers (voice)
Acting
Mindy Cohn
Velma Dinkley (voice)
Acting
Grey DeLisle
Daphne Blake / Shannon Blake (voice)
Acting
Michael Bell
Duncan MacGubbin / Mcintyre (voice)
Acting
Jeff Bennett
Del Chillman / Sir Ian Locksley / Harpoon Gunner (voice)
Acting
John DiMaggio
Colin Haggart / Volunteer #1 (voice)
Acting
Phil LaMarr
Angus Haggart / Volunteer #2 (voice)
Acting
Sheena Easton
Professor Fiona Pembrooke (voice)
Acting