Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Halloween III | 1982 | |
| Writer | Frau in Schwarz | 1989 | |
| Actor | 1984 | 1954 | |
| Writer | 1984 | 1954 | |
| Writer | Das Grüne Blut der Dämonen | 1967 | |
| Writer | Das Grüne Blut der Dämonen | 1967 | |
| Writer | Schock | 1955 | |
| Writer | The Quatermass Experiment | 2005 | |
| Writer | Der Teufel tanzt um Mitternacht | 1966 | |
| Writer | Die erste Fahrt zum Mond | 1964 | |
| Writer | Yeti, der Schneemensch | 1957 | |
| Writer | Yeti, der Schneemensch | 1957 | |
| Writer | Feinde aus dem Nichts | 1957 | |
| Writer | Feinde aus dem Nichts | 1957 | |
| Writer | Die Scharfschützen - Blutiges Gold | 1995 | |
| Writer | Blick zurück im Zorn | 1959 |