Frank Welker

Scooby-Doo / Fred Jones / Dynomutt (voice)

Mindy Cohn

Velma Dinkley (voice)

Grey DeLisle

Daphne Blake (voice)

Matthew Lillard

Shaggy Rogers (voice)

Diedrich Bader

Brad Adams (voice)

Dee Bradley Baker

Hideous Hyde Hound / Horten / Minotaur (voice)

Jeff Bennett

Owen Garrison (voice)

Gregg Berger

Hank Prince / Zorak (voice)

John DiMaggio

Mr. Hyde (voice)

Nika Futterman

Jennifer Severin (voice)

Kevin Michael Richardson

Mayor Ron Starlin (voice)

Mindy Sterling

Caterer (voice)

Tara Strong

Austin / Princess Garogflotach (voice)

Fred Tatasciore

Jack Rabble / Cruel Dynomutt (voice)

Billy West

Becker (voice)

Michael Goguen