Ralph Bates

Victor Frankenstein

Kate O'Mara

Alys

Veronica Carlson

Elizabeth Heiss

Jon Finch

Lt. Henry Becker

Dennis Price

The Graverobber

Bernard Archard

Prof. Heiss

James Hayter

Bailiff

Joan Rice

Graverobber's wife

Neil Wilson

Schoolmaster (uncredited)

James Cossins

Dean

Geoffrey Lumsden

Instructor (uncredited)

George Belbin

Baron Frankenstein (uncredited)

David Prowse

The Monster