Anton Diffring
Baron Frankenstein
Acting
Helen Westcott
Christine Halpert
Acting
Don Megowan
The Monster
Acting
Ludwig Stössel
Wilhelm
Acting
Richard Bull
Max Halpert
Acting
Raymond Greenleaf
Doctor
Acting
Peter Brocco
Gottfried
Acting
Sydney Mason
Police Chief
Acting
David Hoffman
Inner Sanctum (archive footage) (uncredited)
Acting