Frank Welker
Scooby-Doo / Fred Jones (voice)
Mindy Cohn
Velma Dinkley (voice)
Grey DeLisle
Daphne Blake (voice)
Matthew Lillard
Shaggy Rogers (voice)
Greg Ellis
Marcus Brancusi (voice)
Maurice LaMarche
Archambault (voice)
Peter Stormare
Wulfric von Rydingsvard (voice)
Jeff Dunham
Schmatko / Conductor (voice)
Carlos Ferro
Oliverio / Sisko (voice)
Jess Harnell
Human Scooby-Doo / Guard (voice)
Jim Meskimen
Phil Flaxman / Detective (voice)
Candi Milo
Jean (voice)
Hynden Walch
Lena / Joan (voice)
Craig Ferguson
Whitney Doubleday (voice)