All Cast
Peter Cushing
Dr. Namaroff
Christopher Lee
Prof. Karl Meister
Richard Pasco
Paul Heitz
Barbara Shelley
Carla Hoffman
Michael Goodliffe
Professor Jules Heitz
Patrick Troughton
Inspector Kanof
Joseph O'Conor
Coroner
Prudence Hyman
The Gorgon
Jack Watson
Ratoff
Jeremy Longhurst
Bruno Heitz
Toni Gilpin
Sascha Cass
Alister Williamson
Janus Cass
Joyce Hemson
Martha
Redmond Phillips
Hans
Michael Peake
Constable
Sally Nesbitt
Nurse