TV Cartoon Characters/Scooby-Doo Where Are You!

Cast

 * Wirt (from Over the Garden Wall) as Fred Rogers
 * Amy Gillis (from Clarence) as Velma
 * Cody (from Total Drama) as Shaggy
 * Gretchen (from Camp Lakebottom) as Diaphne
 * Surly Squirrel (from The Nut Job) as Scooby-Doo