Frank Welker
Crunch (voice)

Jim Cummings
Frankenstein / Skull Head / Genghis Kong (voice)

Brian Stokes Mitchell
Bonejangles (voice)

Ed Gilbert
Dr. Jackyll / Mr. Snyde (voice)

Alan Oppenheimer
Mummy (voice)

Joan Gerber
Dreadonia Witch / Woman at Store (voice)
Mimi Seaton
Screamer (voice)
Sven Libaek
"The Werewolf Rock" Singer (uncredited voice)