Big Top Scooby-Doo!

Frank Welker Scooby-Doo / Fred (voice)

Mindy Cohn Velma (voice)

Grey DeLisle Daphne (voice)

Matthew Lillard Shaggy (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)