Shaggy Rogers / Mirror Monster (voice)

Casey Kasem

Phantom Father

Hamilton Camp

Revolta (voice)

Ruta Lee

Scooby Doo / Scrappy Doo

Don Messick

Baxter (voice)

Remy Auberjonois

Ms. Grimwood (voice)

Glynis Johns

Sibella Dracula

Sue Blu

Winnie Werewolf (voice)

Marilyn Schreffler

Sibella Dracula

Susan Blu

Tanis the Mummy (voice)

Patty Maloney

Grunt (voice)

Jeff Cohen

Elsa Frankensteen (voice)

Pat Musick

Daddy Dracula / Frankenstein Senior

Zale Kessler

Phantasma (voice)

Russi Taylor

Matches / Papa Werewolf / Well Dweller (voice)

Frank Welker

The Grim Creeper / Mummy Daddy (voice)

Andre Stojka

Phantom Father

Robin Camp

Miguel (voice)

Aaron Lohr

Tug (voice)

Scott Menville

Colonel Calloway (voice)

Ronnie Schell

Jamaal (voice)

Bumper Robinson

Fan Monster (uncredited voice)

Brian Cummings

Doorbell Monster (uncredited voice)

Linda Gary