| Directed by |
Werner Jacobs John Llewellyn Moxey |
|
| Based on a novel by |
Edgar Wallace |
|
| Cast: | ||
| Gregor | Christopher Lee | |
| Inspector Elliott | Leo Genn | |
| Carl | Heinz Drache | |
| Eddie | Eddi Arent | |
| Manfred | Klaus Kinski | |
| Natasha | Suzy Kendall | |
| Sir John | Cecil Parker | |
| Mario | Maurice Kaufmann | |
| Man in Speedboat | Peter Brace | |
| Man in Speedboat | Roy Scammell | |
| Edgar Wallace (voice) | Alfred Vohrer | |
| John Carradine | ||
| Produced by |
Harry Alan Towers |
|
| Edited by |
John Trumper |
|
| Year: | 1966 | |
| Running time: | 90 minutes | |
| Country: | United Kingdom West Germany | |
| Language: | English | |