Sarah Michelle Gellar
Daphne
Neil Fanning
Scooby-Doo Voice / Tasmanian Devil (voice)
Peter Boyle
Old Man Wickles
Alicia Silverstone
Heather
Chris Gauthier
Daphne's Tattooed Fan #1
Peter New
Daphne's Tattooed Fan #2
Morgan Brayton
Mullet Nerdette #1
Lisa Ann Beley
Mullet Nerdette #2
Tara Fynn
Mullet Nerdette #3
Brandon Jay McLaren
Skater Dude #2
Aaron Ydenberg
Skater Dude #3
Joe MacLeod
Skater Dude #1
Lou Bollo
Flashback Security Guard #1
John Ulmer
Flashback Security Guard #2
Bradley Gosnell
Kid on Bike #1
Calum Worthy
Kid on Bike #2
Brenna O'Brien
Buttercup Scout
Darrell Lee-Izeard
Museum Guard
Stephen E. Miller
C.L. Magnus
Karin Konoval
Aggie Wilkins
Nazanin Afshin-Jam
Shaggy Chick
Emily Tennant
Young Daphne
Lauren Kennedy
Young Velma
A.C. Peterson
Faux Ghost Patron
Dan Joffre
Faux Ghost Patron
Richard Dietl
Pickle Man/Faux Ghost Patron
Kimani Ray Smith
Reporter #1
Catherine Lough Haggquist
Reporter #2
Ingrid Torrance
Reporter #3
Scott McNeil
Evil Masked Figure (voice)
Kevin Durand
Black Knight Ghost
Christopher R. Sumpton
Zombie
Ruben Studdard
Ruben Studdard
Dee Bradley Baker
10,000 Volt Ghost / Zombie / Red Eye Skeleton (voice)
Bob Papenbrook
Black Knight (voice)
Michael Sorich
Tar Monster / Cotton Candy Glob (voice)
Terrence Stone
10,000 Volt Ghost (voice)
J.P. Manoux
Scooby Brainiac (voice)
Wally Wingert
Green-Eyed Skeleton (voice)