ScoobyNatural

Jensen Ackles

Dean Winchester

Jared Padalecki

Sam Winchester

Misha Collins

Castiel

Frank Welker

Fred Jones/Scooby-Doo (voice)

Grey DeLisle

Daphne Blake (voice)

Matthew Lillard

Shaggy Rogers (voice)

Kate Micucci

Velma Dinkley (voice)

Dee Bradley Baker

Phantasm (voice)