Trick or Treat Scooby-Doo!

Frank Welker
Scooby-Doo / Rudy / Fred / Nefario (voice)

Grey DeLisle
Daphne / Daisy / Musketeer 1 / Olive (voice)

Matthew Lillard
Shaggy / Craggly / Captain Cutler (voice)

Kate Micucci
Velma / Helga (voice)

Myrna Velasco
Coco Diablo (voice)

Dee Bradley Baker
Esteban / Mr. Wickles / Cat Man (voice)

Jeff Bennett
Shady Guy / Charlie Humdrum / Hank (voice)

Anthony Carrigan
Trevor Glume / Farmer (voice)

Erin Fitzgerald
Library Kid / Superhero Girl / Musketeer 2 (voice)

David Lodge
Warden Collins / Harry the Hypnotist / Inspector (voice)

Lara Jill Miller
Prisoner Costume Teen / Superhero Boy / Musketeer 3 (voice)

Candi Milo
Prison Woman / Dinosaur Kid / Monster Kid (voice)

Jenelle Lynn Randall
Librarian / Superboy (voice)

Kevin Michael Richardson
Sheriff / Henry Bascombe / 10

Sheriff / Henry Bascombe / 10