Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | John Rambo | 2008 | |
| Writer | Rambo | 1982 | |
| Writer | Rambo II - Der Auftrag | 1985 | |
| Writer | Rambo III | 1988 |
| Role | Title | Year | Character |
|---|---|---|---|
| Writer | John Rambo | 2008 | |
| Writer | Rambo | 1982 | |
| Writer | Rambo II - Der Auftrag | 1985 | |
| Writer | Rambo III | 1988 |