Shaggy is turned into a werewolf, and it's up to Scooby, Scrappy and Shaggy's girlfriend to help him win a race against other monsters, and become human again.
Don Messick | Scooby-Doo / Scrappy-Doo |
Casey Kasem | Shaggy |
Hamilton Camp | Dracula |
Jim Cummings | Frankenstein / Skull Head / Gengis Kong (voice) |
Ed Gilbert | Dr. Jeckyll / Mr. Hyde |
Rob Paulsen | Brunch (voice) |
Frank Welker | (voices) |
B.J. Ward | Googie / Repulsa (voice) |
Pat Musick | Vanna Pira (voice) |
Alan Oppenheimer | Mummy / Swamp Thing (voice) |
Joan Gerber | Dreadonia Witch / Short Witch (voice) |
Brian Stokes Mitchell | Bonejangles (voice) |