Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | CSI: Den Tätern auf der Spur | Dr. Gilbert "Gil" Grissom | |
| Actor | CSI: Vegas | Gil Grissom | |
| Actor | Detachment | 2011 | Mr. Sarge Kepler |
| Actor | Die 12 Geschworenen | 1997 | Juror 12 |
| Actor | Manhattan | Colonel Emmett Darrow | |
| Actor | Fear - Wenn Liebe Angst macht | 1996 | Steve Walker |
| Actor | Auf der Suche nach einem Freund fürs Ende der Welt | 2012 | Trucker |
| Actor | CSI: Am Ende gilt nur, was wir getan | 2015 | Gil Grissom |
| Actor | Manhunter | 1986 | Will Graham |
| Actor | CSI: Crime Scene Investigation - Grabesstille | 2005 | Gil Grissom |
| Actor | The Skulls - Alle Macht der Welt | 2000 | Ames Levritt |
| Actor | Der Einzelgänger | 1981 | Katz & Jammer Bartender |
| Actor | Blaze of Glory - Flammender Ruhm | 1990 | Patrick Floyd 'Pat' Garrett |
| Actor | Leben und Sterben in L.A. | 1985 | Richard Chance |
| Actor | Nach eigenen Regeln | 1996 | Jack Flynn |
| Actor | Wildes Land | ||
| Actor | Rufmord - Jenseits der Moral | 2000 | Jack Hathaway |
| Actor | Seitensprünge | 1989 | Tom Hardy |
| Actor | The Beast (1996) | Whip Dalton | |
| Actor | Frank, Dean und Sammy tun es | 1998 | John F. Kennedy |
| Actor | Haven | 2001 | Jackson Connolly |
| Actor | Schweigende Stimmen | 1987 | Russell (as William L. Petersen) |