Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | Mord im Orient Express | 2017 | |
| Writer | Tod auf dem Nil | 2022 | |
| Writer | Das krumme Haus | 2017 | |
| Writer | Mord im Orientexpress | 1974 | |
| Writer | They were Ten | ||
| Writer | Zeugin der Anklage | 1957 | |
| Writer | Tod auf dem Nil | 1978 | |
| Writer | Das Böse unter der Sonne | 1982 | |
| Writer | Das letzte Wochenende | 1945 | |
| Writer | Mord im Spiegel | 1980 | |
| Writer | Rendezvous mit einer Leiche | 1988 | |
| Writer | Geheimnis im blauen Schloss | 1965 | |
| Writer | Ein Unbekannter rechnet ab | 1974 | |
| Writer | By the Pricking of My Thumbs | 2005 | |
| Writer | 16 Uhr 50 ab Paddington | 1961 | |
| Writer | Curtain: Poirot's Last Case | 2013 | |
| Writer | Crime Is Our Business | 2008 | |
| Writer | Das Böse unter der Sonne | 2001 | |
| Writer | Partners in Crime | 2012 | |
| Writer | Vier Frauen und ein Mord | 1964 | |
| Writer | Mord im Orientexpress | 2001 | |
| Writer | Mord mit verteilten Rollen | 1986 | |
| Writer | Mord à la Carte | 1985 | |
| Writer | Geheimnis im blauen Schloß | 1989 | |
| Writer | Agatha Christie: Tödliche Parties | 1986 | |
| Writer | Miss Marple: The Mirror Crack'd from Side to Side | 1992 | |
| Writer | Cat Among the Pigeons | 2008 | |
| Writer | Mörder ahoi! | 1964 | |
| Writer | Miss Marple - Mord im Spiegel | 1991 | |
| Writer | Miss Marple: Karibische Affäre | 1989 | |
| Writer | Die Morde des Herrn ABC | 1965 | |
| Writer | Mord im Pfarrhaus | 1986 | |
| Writer | Zeugin der Anklage | 1982 | |
| Writer | Agatha Christie's Das Geheimnis der 7 Zifferblätter | 1981 | |
| Writer | The Great Alibi | 2008 | |
| Writer | A Caribbean Mystery | 1983 | |
| Actor | Agatha Christie gegen Hercule Poirot - Wer hat Roger Ackroyd getötet? | 2017 | Agatha Christie |
| Writer | Agatha Christie: Mord auf hoher See | 1989 | |
| Writer | Mord nach Maß | 1972 | |
| Writer | Mord mit doppelten Boden | 1985 | |
| Writer | Mörderische Leidenschaft | 1982 | |
| Writer | Das letzte Weekend | 1987 | |
| Actor | Agatha Christie: The Queen of Crime | 2018 | Agatha Christie |
| Writer | Unschuldige Lügen | 1995 | |
| Writer | Why Didn't They Ask Evans? | 1980 | |
| Writer | Blausäure | 2003 | |
| Writer | Ruhe unsanft | 1987 |