Mad Dr Frankenstein recruits an evil dwarf, a Neanderthal man, and others to help him put a brain in the body of a brute.
| Actor | Role |
|---|---|
 Rossano BrazziCount Frankenstein | Count Frankenstein |
 Michael DunnGenz | Genz |
 Edmund PurdomPrefect Ewing | Prefect Ewing |
 Gordon MitchellIgor | Igor |
| LLoren EwingGoliath | Goliath |
 Luciano PigozziHans | Hans |
 Xiro PapasKreegin | Kreegin |
 Salvatore BaccaroOok | Ook |
| SSimonetta VitelliMaria Frankenstein (as Simone Blondell) | Maria Frankenstein (as Simone Blondell) |
| EEric MannEric | Eric |
| LLaura De BenedittisValda | Valda |
 Christiane RückerKrista Lauder | Krista Lauder |
 Annamaria TornelloJenny Hansen | Jenny Hansen |
| MMike MontyPaisan | Paisan |