Scooby-Doo and the gang are on the case when a mysterious lake monster starts scaring the guests at a summer resort in Erie Point, where Fred, Daphne, Velma and Shaggy have taken on seasonal jobs to pay for a barn they accidentally burned down. But in addition to sneaking suspicions, there's some romance in the air.
Frank Welker
as Scooby-Doo (voice)
Kate Melton
as Daphne
Hayley Kiyoko
as Velma
Nick Palatas
as Shaggy
Robbie Amell
as Fred
Marion Ross
as Hilda Trowburg
Beverly Sanders
as Wanda Grubworth
Ted McGinley
as Uncle Thorny
Brad Morris
as Witch Doctor
Patrick Babbitt
as Wolfman
David Joyner
as Sinister Clown
Danielle E. Hawkins
as Scooby Roller Disco Suit Performer
