Ralph Bates

Victor Frankenstein

Kate O'Mara

Alys

Veronica Carlson

Elizabeth Heiss

Jon Finch

Lt. Henry Becker

Dennis Price

The Graverobber

Graham James

Kassner

Bernard Archard

Prof. Heiss

James Hayter

Bailiff

Joan Rice

Graverobber's wife

Stephen Turner

Stephan

Neil Wilson

Schoolmaster (uncredited)

James Cossins

Dean

Glenys O'Brien

Maggie

Geoffrey Lumsden

Instructor (uncredited)

Chris Lethbridge-Baker

Priest (uncredited)

Jimmy Sangster