Filmography
| Role | Title | Year | Character |
|---|---|---|---|
| Actor | CSI: Las Vegas | Dr. Gilbert "Gil" Grissom | |
| Actor | CSI: Vegas | Gil Grissom | |
| Actor | El profesor (Detachment) | 2011 | Mr. Sarge Kepler |
| Actor | Doce hombres sin piedad: Veredicto final | 1997 | Juror 12 |
| Actor | Manhattan | Colonel Emmett Darrow | |
| Actor | Pasión obsesiva | 1996 | Steve Walker |
| Actor | Buscando un amigo para el fin del mundo | 2012 | Trucker |
| Actor | CSI: Caso Cerrado | 2015 | Gil Grissom |
| Actor | Hunter | 1986 | Will Graham |
| Actor | CSI Las Vegas: Peligro sepulcral (TV) | 2005 | Gil Grissom |
| Actor | The Skulls: Sociedad secreta | 2000 | Ames Levritt |
| Actor | Ladrón | 1981 | Katz & Jammer Bartender |
| Actor | Intrépidos forajidos | 1990 | Patrick Floyd 'Pat' Garrett |
| Actor | Vivir y morir en Los Ángeles | 1985 | Richard Chance |
| Actor | Mulholland Falls (La Brigada del Sombrero) | 1996 | Jack Flynn |
| Actor | Regreso a Paloma Solitaria | ||
| Actor | Candidata al poder | 2000 | Jack Hathaway |
| Actor | Un toque de infidelidad | 1989 | Tom Hardy |
| Actor | The Beast (1996) | Whip Dalton | |
| Actor | El clan Sinatra | 1998 | John F. Kennedy |
| Actor | Haven | 2001 | Jackson Connolly |
| Actor | Amazing Grace and Chuck | 1987 | Russell (as William L. Petersen) |