Scooby-Doo: Wrath of the Witch

, alternately known as 'Scooby-Doo! 3'', is an American live-action/CGI-animated mystery-fantasy-comedy film based on ' by and the third installment in the, being directed by. It is produced by  and Warner Animation Group and distributed by Warner Bros. Pictures, being released on August 3rd, 2018.

Summary
Set some years after the events of Scooby-Doo 2: Monsters Unleashed, Mystery, Inc. reunites when a Hispanic author requests they find a book written by Benjamin's ancestor. However, they discover something more sinister is at the works.

Full plot
Under construction...

Cast

 * Frank Welker as Scooby-Doo (voice), Shaggy's pet dog and best friend TBD.
 * Matthew Lillard as Shaggy Rogers, Scooby's owner and best friend TBD.
 * Freddie Prinze, Jr. as Fred Jones, the leader of Mystery, Inc. TBD.
 * Sarah Michelle Gellar as Daphne Blake, the fashionista of Mystery, Inc. TBD.
 * Linda Cardellini as Velma Dinkley, the smartest of Mystery, Inc. TBD.
 * as Helena Worth/The Witch, an immortal witch and Benjamin's ancestor.
 * as Benjamin Worth, a Hispanic American writer who is after Helena’s book, being later revealed to be only after it to become a great warlock.
 * Alyson Hannigan as Mayor Kathleen Davidson, an old friend of Daphne and the Mayor of New York City.

Quotes

 * Kathleen: Daphne, is that you?
 * Daphne: K... Kathleen?
 * Scooby: Rho?

Trivia

 * Unlike its two previous installments, Scooby's regular voice actor Frank Welker voices him in this film.