John SaxonProfessor Jones Emile B. LevisettiHarvey (voice) Edward StevensDrake Destry Robert DoleProfessor Damon Steven E. WilliamsHarvey (as Steve Williams) Ken EarlMama Jones (voice) Douglas SchulzeRegisör / Författare / Producent David J. DaltonCo-Producer Nathan J. WhiteExekutiv producent Kurt Eli MayryCo-Producer Michael GoiDirector Of Photography Jeff WehenkelSpecial Effects Makeup Artist Diana CrollOriginalmusikkompositör John TraynorOriginalmusikkompositör 
