Frank Welker

Scooby-Doo / Fred Jones (voice)

Grey DeLisle

Daphne Blake (voice)

Matthew Lillard

Shaggy Rogers (voice)

Kate Micucci

Velma Dinkley (voice)

Cassandra Peterson

Elvira, Mistress of the Dark (voice)

Bill Nye

Bill Nye (voice)

Dwight Schultz

Dr. Crane, AKA: Scarecrow (voice)

Kamali Minter

Michelle (voice)

Bumper Robinson

Mike (voice)

Roger Craig Smith

Autopilot / Parent (voice)