Dr. Georges Bonner

Anton Diffring

Dr. Pierre Gerrard

Christopher Lee

Janine Du Bois

Hazel Court

Dr. Ludwig Weiss

Arnold Marle

Margo Philippe

Delphi Lawrence

Inspector Legris

Francis de Wolff

Street Girl

Gerda Larsen

Little Man (uncredited)

Middleton Woods

Morgue Attendant (uncredited)

Michael Ripper

Tavern Customer (uncredited)

Denis Shaw

Woman At Private View (uncredited)

Marie Burke

Roget (uncredited)

Ian Hewitson

Man At Private View

Charles Lloyd Pack

Footman (uncredited)

Frederick Rawlings

Dennis Shaw

Servant (uncredited)

John Harrison

First Doctor (uncredited)

Lockwood West

Second Doctor (uncredited)

Ronald Adam

Third Doctor (uncredited)

Barry Shawzin