Scooby Doo And My Little Pony: Equestria Girls - The Mystery of Canterlot High

 is the third one-hour special of the Eguestria Girls series. It is also a crossover with Scooby-Doo.

Cast

 * Tara Strong as Twilight "Sci-Twi" Sparkle
 * Rebecca Shoichet as Sunset Shimmer
 * Ashleigh Ball as Applejack and Rainbow Dash
 * Andrea Libman as Pinkie Pie and Fluttershy
 * Tabitha St. Germain as Rarity
 * Cathy Weseluck as Spike the Dog
 * Nicole Oliver as Principal Celestia
 * Kathleen Barr as Trixie
 * Matthew Lillard as Shaggy Rogers
 * Frank Welker as Scooby-Doo and Fred Jones
 * Grey DeLisle as Daphne Blake
 * Kate Micucci as Velma Dinkley