Scooby-Doo! e il mistero del circo

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)

Hynden Walch

Lena / Joan (voice)

Craig Ferguson

Whitney Doubleday (voice)