Victor Frankenstein

Igor

Lorelei

Inspector Turpin

Finnegan

Frankenstein

Barnaby

Alistair

Rafferty

Nathaniel / Prometheus 2

Baron Bomine

Older Nun

Orderly

Surgeon

Sexy Society Girl

Housekeeper

Chief Inspector

Huntsman

Dettweiler

Prometheus 1

Livery Man (uncredited)

Mrs. Winthrop (uncredited)

Dr. Clive (uncredited)