It is a very rare movie that does have the rest of the Scooby Doo gang (Fred, Daphne & Velma). This movie just has Shaggy, Scooby and Scrappy Doo. If you have seen the series or any of most of the movies , it is always Fred, Daphne, and Velma that makes Shaggy and Scooby to do stuff, they don't want to do. I wish more epoides and movies like this. And if the gang has to be around, then I wish that Shaggy and Scooby boss around the others, and making them do things they don't want to do. As the movie opens, Shaggy (Casey Kasem), and Scooby-Doo and Scrappy Doo (both voiced by the late Don Messick), are on the road like for Ms. Grimwood's finshing school for girls, but they run find Calloy Miletary School, and the school they want is next doors, which turns to be Ms. Grimwood's school for ghouls. THey meet Ms. Grimwood (Glynis Johns), and meet the residents Sibella (Susan Blu), Else Frankteen (Pat Musick), Winnie the Werewolf (Marlyn Schreffler) Phantasma (Russell Taylor) and Tanis (Patty Maloney) who badly wants to the trophey in the annaul volley ball game against Colonol Calloway's (Ronnie Schell) boys, who look foward to beat the girls again, in which they do it every year.