| Actor | Christopher Lee (as Prof. Karl Meister), Peter Cushing (as Dr. Namaroff), Richard Pasco (as Paul Heitz), Michael Goodliffe (as Professor Jules Heitz), Patrick Troughton (as Inspector Kanof), Joseph O'Conor (as Coronor), Jack Watson (as Ratoff), Redmond Phillips (as Hans), Jeremy Longhurst (as Bruno Heitz), Alister Williamson (as Janus Case), Michael Peake (as Constable) |
| Actress | Barbara Shelley (as Carla Hoffman), Prudence Hyman (as The Gorgon), Toni Gilpin (as Sascha Case), Joyce Hemson (as Martha) |
| Director | Terence Fisher |
| Screenplay | John Gilling |
| Links | https://www.imdb.com/title/tt0058155/ |
Added by coatchief