Frank Welker

as Scooby-Doo / Fred Jones (voice)

Grey DeLisle

as Daphne Blake (voice)

Matthew Lillard

as Shaggy Rogers (voice)

Kate Micucci

as Velma Dinkley (voice)

Noshir Dalal

as Benny / Flim Flam (voice)

David Herman

as Sheriff (voice)

Maurice LaMarche

as Vincent Van Ghoul / Bernie Alan / Vance Linklater (voice)

Nolan North

as Asmodeus / Mortifer / Farmer Morgan (voice)