Frank Welker

Fred / Scooby-Doo (voice)

Matthew Lillard

Shaggy (voice)

Mindy Cohn

Velma (Voice)

Grey DeLisle

Daphne (voice)

Dee Bradley Baker

C.L. Magnus / Mr. Burger (voice)

Diedrich Bader

Mrs. Vanders (voice)

Susanne Blakeslee

Townswoman (voice)

Eric Bauza

Daphanatic / Rock Dude (voice)

Jeff Bennett

Iago / Schmidlap (voice)

Kevin Michael Richardson

Cuthbert Crawley / Inspector Krunch (voice)

Candi Milo

Gypsy / Lila (voice)

Corey Burton

Baron Basil (voice)

Fred Tatasciore

Frankencreep (voice)

John Stephenson

Roger (voice) (archive footage)

Casey Kasem

Shaggy Rogers (voice) (archive footage)