The descendants of Baron Frankenstein return to the family castle to search for the family fortune that is supposed to be hidden there.
Donald PleasenceVictor Frankenstein / Baron Frankenstein
Yvonne FurneauxMatilda 'Tillie' Frankenstein
June WilkinsonRandy
Zsa Zsa GaborClara
Aldo RayBürgermeister Niederhangen
Miguel Ángel FuentesThe MonsterRod ColbinGrocer SchnittChandler GarrisonPolice Superintendent Schwerbaum
Phil LeedsBanker SchlockmockerGarnett SmithLawyer SchnabelKen SmithJudge EdelweissKaren HaberSecretary Gudrun Geduldig
Edgar VivarFeldwebel Erstarren
Joaquín García VargasBig Black BillJoy GeorgePolicewoman