
"Doo the fright thing."
A masked villain wreaks mayhem on the city of Coolsville with a monster machine that creates real-life versions of Mystery Inc.'s former foes like The 10,000 Volt Ghost, The Cotton Candy Glob, The Skelemen and The Pterodactyl Ghost. Fred, Daphne, Shaggy, Velma and Scooby-Doo launch an investigation into the monster outbreak that leaves Shaggy and Scooby questioning their roles in Mystery Inc. Eager to prove their detective skills, the ever-ravenous duo comes up with a secret plan to solve the mystery all by themselves. Can the gang unravel their most challenging case?
Fred

Daphne

Shaggy

Velma

Scooby-Doo Voice / Tasmanian Devil (voice)

Patrick

Old Man Wickles

Jacobo

Heather

Pat O'Brien

Chauffeur
Ned

Daphne's Tattooed Fan #1

Daphne's Tattooed Fan #2

Mullet Nerdette #1

Mullet Nerdette #2

Mullet Nerdette #3
Skater Dude #2

Skater Dude #3
Skater Dude #1

Flashback Security Guard #1

Flashback Security Guard #2
Kid on Bike #1

Kid on Bike #2

Buttercup Scout

Man in Suit
Man in Suit

Museum Guard
Museum Guard
C.L. Magnus

Aggie Wilkins

Scared Man
Investor

Investor

Man in Car

Shaggy Chick

Young Shaggy
Young Daphne

Young Fred
Young Velma
Harry Lang
Faux Ghost Patron

Faux Ghost Patron

Pickle Man/Faux Ghost Patron
Vomit Reporter

Reporter #1

Reporter #2

Reporter #3

Reporter #4

Evil Masked Figure (voice)

Black Knight Ghost

Miner 49er

Zombie
Ruben Studdard

10,000 Volt Ghost / Zombie / Red Eye Skeleton (voice)

Black Knight (voice)

Tar Monster / Cotton Candy Glob (voice)

10,000 Volt Ghost (voice)

Scooby Brainiac (voice)

Green-Eyed Skeleton (voice)

Big Brovaz
Big Brovaz
Big Brovaz
Big Brovaz
Big Brovaz
Big Brovaz
