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