 | Anton Diffring als Baron Frankenstein |
 | Helen Westcott als Christine Halpert |
 | Don Megowan als The Monster |
 | Ludwig Stössel als Wilhelm |
 | Richard Bull als Max Halpert |
 | Raymond Greenleaf als Doctor |
 | Peter Brocco als Gottfried |
 | Sydney Mason als Police Chief |
 | David Hoffman als Inner Sanctum (archive footage) (uncredited) |
| Curt Siodmak | Director |
| Curt Siodmak | Executive Producer |
| James Crowe | Set Decoration |
| Clay Campbell | Makeup Artist |
| Gert Andersen | Director of Photography |
| Helen Hunt | Hairstylist |
| Carl Anderson | Art Direction |
| Jerome Bixby | Screenplay |
| Anthony DiMarco | Editor |
| C.L. Moore | Screenplay |
| Henry Kuttner | Screenplay |
| Michael Carreras | Producer |
| Clarence Peet | Props |
