Freddy

Freddie Prinze Jr.

Daphne

Sarah Michelle Gellar

Scooby-Doo Voice / Tasmanian Devil (voice)

Neil Fanning

Shaggy

Matthew Lillard

Thelma

Linda Cardellini

Patrick Wisely

Seth Green

Jeremiah Wickles

Peter Boyle

Heather Jasper-Howe

Alicia Silverstone

Jacobo

Tim Blake Nelson

Pat O'Brien

Pat O'Brien

Ruben Studdard

Ruben Studdard

Chauffeur

Bill Meilen

Ned

Zahf Paroo

Man in Car

Andrew Jackson

Daphne's Tattooed Fan #1

Chris Gauthier

Daphne's tattooed fan #2

Peter New

dancer

Leigh Hilary

Mullet nerdette #1

Morgan Brayton

dancer

Alex Pesusich

Mullet Nerdette #2

Lisa Ann Beley

Richard O'Sullivan

Mullet Nerdette #3

Tara Fynn

Joanne Pesusich

Skater Dude #2

Brandon Jay McLaren

Skater Dude #3

Aaron Ydenberg

skater dude #1

Joe MacLeod

Flashback Security Guard #1

Lou Bollo

Flashback Security Guard #2

John Ulmer

Kid on Bike #1

Bradley Gosnell

Kid on Bike #2

Calum Worthy

Buttercup Scout

Brenna O'Brien

Man in Suit

Mark Burgess

Man in Suit

Kwesi Ameyaw

Museum Guard

Ted Kozma

Museum Guard

Darrell Lee-Izeard

Black Knight (voice)

Bob Papenbrook

C.L. Magnus

Stephen E. Miller

10,000 Volt Ghost [Voice]

Terrence Stone

Scooby Brainiac [Voice]

J.P. Manoux

Aggie Wilkins

Karin Konoval

Scared Man

Paul Jamieson

Green-Eyed Skeleton (voice)

Wally Wingert

Investor

Andrew McIlroy

Freddie Prinze

Investor

Colin Foo

Shaggy Chick

Nazanin Afshin-Jam

Young Shaggy

Cascy Beddow

Young Daphne

Emily Tennant

Tar Monster / Cotton Candy Glob (voice)

Michael Sorich

Young Fred

Ryan Vrba

Young Velma

Lauren Kennedy

Harry Lang

Jeff Tanner

Faux Ghost Patron

Alan C. Peterson

Faux Ghost Patron

Dan Joffre

Pickle Man / Faux Ghost Patron

Richard Dietl

vomit reporter

Bill Mondy

reporter #1

Kimani Ray Smith

reporter #2

Catherine Lough Haggquist

reporter #3

Ingrid Torrance

Red Eye Skeleton / Zombie / 10,000 Volt Ghost

Dee Bradley Baker

Reporter #4

Tiffani Timms

Evil Masked Figure (voice)

Scott McNeil

Black Knight Ghost

Kevin Durand

Miner 49er

C. Ernst Harth

Zombie

Christopher R. Sumpton

Young Velma

Laurence Kennedy

pickle man/Faux Ghost Patron

Richard "Bo" Dietl

Big Brovas band member

Michael Brown

bass player

Everick Golding

keyboard player

Karen Holness

drum player

Doron Bell, Jr.

Dancer

Alex Lee