Scooby-Doo on Zombie Island sequences of interplay between Shaggy and Scooby for him. After Don Messick's death, Scott Innes replaced Messick as the voice of Scooby-Doo. Casey Kasem did not reprise his role as Shaggy Rogers as he wished to only voice Shaggy if the character became a vegetarian, like himself. Instead, Billy West provided the voice for Shaggy. Mary Kay Bergman was cast as Daphne when the character was taken in a new direction. B.J. Ward, who played Velma in the "Johnny Bravo" crossover episode, reprised her role in this film. Frank Welker is the only actor from the original series to reprise
Scooby Snacks Scooby Snacks Scooby Snacks (Scooby Snax) are a fictional food item, but there is also a licensed dog treat with the same name. They are used as a form of incentive payment for the cartoon characters Scooby-Doo and Shaggy from the Hanna-Barbera series "Scooby-Doo" and its various spin-offs. Producer William Hanna had always imagined that a "Scooby Snack" would taste like some sort of a caramel-flavored cookie. He and Joseph Barbera had previously used the concept of a dog, Snuffles, that goes wild for doggie treats in the Quick Draw McGraw series in 1959. Likewise Hanna-Barbera created dog character Muttley,