Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | X-Files | Walter Skinner | |
| Actor | Transformers - L'ultimo cavaliere | 2017 | TRF Group Leader |
| Actor | Stargate Atlantis | Steven Caldwell | |
| Actor | Basic Instinct | 1992 | Internal Affairs Investigator |
| Actor | Walker | Bonham Walker | |
| Actor | Dallas | Harris Ryland | |
| Actor | The Batman | Commissioner James Gordon | |
| Actor | Polaroid | 2019 | |
| Actor | X-Files - Il film | 1998 | Assistant Director Walter Skinner |
| Actor | X-Files - Voglio crederci | 2008 | Walter Skinner |
| Actor | Tarzan | Richard Clayton | |
| Actor | Il ritorno dei morti viventi 2 | 1988 | Sarge |
| Actor | Three O'Clock High | 1987 | Duke Herman |
| Actor | Indagine ad alta velocità | 1991 | Thomas J. Watts |
| Actor | Sotto shock | 1989 | Horace Pinker |
| Actor | Inside The X-Files | 1998 | Mitch Pileggi |
| Actor | Recount | 2008 | Bill Daley |
| Actor | American Traitor: The Trial of Axis Sally | 2021 | John Kelly |
| Actor | Gun Shy - un revolver in analisi | 2000 | Dexter Helvenshaw |
| Actor | In Search of... | Host (2002) | |
| Actor | The Girl in the Photographs | 2015 | Sheriff Porter |
| Actor | The Mountain | ||
| Actor | The Making of 'The X Files: Fight the Future' | 1998 | Narrator |
| Actor | Super Storm: L’ultima tempesta | 2011 | Gunter MacGregor |
| Actor | Marabunta - Minaccia alla terra | 1998 | Police Chief Jeff Croy |
| Actor | Conspiracy Theory: Did We Land on the Moon? | 2001 | Narrator |