Das Projekt Honnef (1977) Online
| Credited cast: | |||
 | Hans Helmut Dickow | - | Hermann Honnef |
| Rest of cast listed alphabetically: | |||
 | Thomas Braut | - | Herbert |
| Konrad Georg | - | Pfarrer Schwoch |
| Alexander Hegarth | - | Dr. Schweigert |
 | Carl Lange | - | Prof. Eckerle |
| Xenia Pörtner | - | Trude Honnef |
 | Silvia Simon | - | Else Riesner |
| Jochen Striebeck | - | Edgar Riesner |