Filmography69 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2010 | The Chosen OneMovie | Norman | 65 |
| 2007 | October RoadSeries | — | 62 |
| 2006 | Superman: Brainiac AttacksMovie | Perry White (voice) | 61 |
| 2005 | Grey's AnatomySeries | Harold O'Malley | 60 |
| 2002 | City by the SeaMovie | Reg Duffy | 57 |
| 2002 | HackSeries | Tom Grzelak | 57 |
| 2001 | The AgencySeries | Helmut | 56 |
| 2000 | Above SuspicionMovie | Stamos | 55 |
| 1999 | Third WatchSeries | Faith's Dad | 54 |
| 1999 | InstinctMovie | Dr. John Murray | 54 |
| 1998 | Species IIMovie | Colonel Burgess | 53 |
| 1997 | Stargate SG-1Series | Jim / Anubis | 52 |
| 1997 | That Darn CatMovie | Boetticher | 52 |
| 1997 | The New Batman AdventuresSeries | Ventriloquist / Scarface (voice) | 52 |
| 1997 | Trading FavorsMovie | Wallace Muller | 52 |
| 1996 | Superman: The Animated SeriesSeries | Perry White (voice) | 51 |
| 1996 | The Limbic RegionMovie | Lloyd | 51 |
| 1996 | Superman: The Last Son of KryptonMovie | Perry White (voice) | 51 |
| 1996 | Road RoversSeries | Gustav Havoc (voice) | 51 |
| 1995 | Dangerous MindsMovie | Hal Griffith | 50 |
| 1995 | The Making of 'Crimson Tide'Movie | Self | 50 |
| 1994 | Touched by an AngelSeries | Bud Baxter | 49 |
| 1993 | AnimaniacsSeries | Bloski (voice) | 48 |
| 1992 | Batman: The Animated SeriesSeries | Ventriloquist/Scarface (voice) | 47 |
| 1992 | Basic InstinctMovie | Gus | 47 |
| 1991 | The Butcher's WifeMovie | Leo Lemke | 46 |
| 1990 | Law & OrderSeries | Max Greevey | 45 |
| 1990 | ImpulseMovie | Lt. Joe Morgan | 45 |
| 1990 | White Hunter, Black HeartMovie | Paul Landers | 45 |
| 1989 | Cross of FireSeries | Boyd Gurley | 44 |
| 1989 | The Ryan White StoryMovie | Dr. Kleiman | 44 |
| 1988 | The BeastMovie | Daskal | 43 |
| 1988 | Honor BoundMovie | Wocjinski | 43 |
| 1987 | No Man's LandMovie | Uncle Mike (uncredited) | 42 |
| 1987 | Glory YearsMovie | John Moss | 42 |
| 1987 | No Way OutMovie | Sam Hesselman | 42 |
| 1986 | MatlockSeries | A.D.A. Michael Brennan | 41 |
| 1986 | One Police PlazaMovie | Det. Gustav Stamm | 41 |
| 1986 | 2 1/2 DadsMovie | — | 41 |
| 1985 | The Twilight ZoneSeries | (segment "Red Snow") | 40 |
| 1985 | The Execution of Raymond GrahamMovie | Prison Chaplain | 40 |
| 1985 | The Rape of Richard BeckMovie | Blastig | 40 |
| 1985 | Brotherly LoveMovie | Lt. Conde | 40 |
| 1984 | Best DefenseMovie | Loparino | 39 |
| 1984 | When She Says NoMovie | Paul Fellows | 39 |
| 1984 | All The Kids Do ItMovie | Mr. Elder | 39 |
| 1983 | Sleeping BeautyMovie | The Woodsman | 38 |
| 1983 | StreamersMovie | Cokes | 38 |
| 1982 | Faerie Tale TheatreSeries | The Woodsman | 37 |
| 1981 | SkokieMovie | Frank Collin | 36 |
| 1981 | A Long Way HomeMovie | Floyd Booth | 36 |
| 1981 | Open All NightSeries | Gordon Feester | 36 |
| 1981 | Honky Tonk FreewayMovie | Eugene | 36 |
| 1979 | Salem's LotSeries | Cully Sawyer | 34 |
| 1979 | Young Maverick - Dead Man's HandMovie | Clem | 34 |
| 1978 | The Deer HunterMovie | John | 33 |
| 1978 | The Defection of Simas KudirkaMovie | Gruzauskas | 33 |
| 1975 | Starsky & HutchSeries | — | 30 |
| 1975 | The Happy HookerMovie | Chet | 30 |
| 1975 | Joe ForresterSeries | — | 30 |
| 1975 | GradySeries | — | 30 |
| 1974 | King LearMovie | Gentleman | 29 |
| 1974 | Movin' OnSeries | — | 29 |
| 1974 | Fischia Il SessoMovie | Dean | 29 |
| 1973 | Massage Parlor MurdersMovie | Mr. Creepy | 28 |
| 1972 | The Streets of San FranciscoSeries | Paul Weber | 27 |
| 1972 | The WaltonsSeries | — | 27 |
| 1972 | Kung FuSeries | Mr. Evans/1st John | 27 |
| 1971 | Great PerformancesSeries | Gentleman | 26 |