Scooby-Doo

Scooby-Doo is a main character in Scooby Doo and the Ghoul School, serving as the eponymous main protagonist of the movie.

Biography
Scooby is a Great Dane who can kind of talk.

Role in the movie
Scooby, along with his friend Shaggy and Scooby's nephew Scrappy-Doo, are gym teachers at Miss Grimwood's Finishing School for Ghoul Girls.