Tráiler
Reparto
Matthew Lillard
Shaggy
Kwesi Ameyaw
Man in Suit
Karin Konoval
Aggie Wilkins
Linda Cardellini
Velma
Brenna O'Brien
Buttercup Scout
Colin Foo
Investor
Nazanin Afshin-Jam
Shaggy Chick
Emily Tennant
Young Daphne
Peter Boyle
Old Man Wickles
Joe MacLeod
Skater Dude #1
Dee Bradley Baker
10,000 Volt Ghost / Zombie / Red Eye Skeleton (voice)
Freddie Prinze Jr.
Fred
Neil Fanning
Scooby-Doo Voice / Tasmanian Devil (voice)
Seth Green
Patrick
Zahf Paroo
Ned
C. Ernst Harth
Miner 49er
Michael Sorich
Tar Monster / Cotton Candy Glob (voice)
Tim Blake Nelson
Jacobo
Kevin Durand
Black Knight Ghost
Dan Joffre
Faux Ghost Patron
Wally Wingert
Green-Eyed Skeleton (voice)
John-Paul Horsley
Big Brovaz
Calum Worthy
Kid on Bike #2
Andrew Jackson
Man in Car
Bradley Gosnell
Kid on Bike #1
Bill Mondy
Vomit Reporter
Stephen E. Miller
C.L. Magnus
Morgan Brayton
Mullet Nerdette #1
Lisa Ann Beley
Mullet Nerdette #2
Ingrid Torrance
Reporter #3
Ruben Studdard
Ruben Studdard
Sarah Michelle Gellar
Daphne
Pat O'Brien
Pat O'Brien
Chris Gauthier
Daphne's Tattooed Fan #1
Peter New
Daphne's Tattooed Fan #2
Lou Bollo
Flashback Security Guard #1
Andrew McIlroy
Investor
Kimani Ray Smith
Reporter #1
Scott McNeil
Evil Masked Figure (voice)
Terrence Stone
10,000 Volt Ghost (voice)
J.P. Manoux
Scooby Brainiac (voice)
Alicia Silverstone
Heather
A.C. Peterson
Faux Ghost Patron
Catherine Lough Haggquist
Reporter #2
Tiffani Timms
Reporter #4
Brandon Jay McLaren
Skater Dude #2
Bob Papenbrook
Black Knight (voice)