Filmography72 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2026 | Spider-NoirSeries | Ogden | 84 |
| 2024 | To the Journey: Looking Back at Star Trek: VoyagerMovie | Self | 82 |
| 2022 | The Shuttlepod ShowSeries | Self | 80 |
| 2019 | That Guy... Who Was In That Thing 3: Trek StarsMovie | Self | 77 |
| 2018 | What We Left Behind: Looking Back at Star Trek: Deep Space NineMovie | Self | 76 |
| 2015 | Last of the Independents: Don Siegel and the Making of 'Charley Varrick'Movie | Self | 73 |
| 2008 | The Long Shadow of Dirty HarryMovie | Self | 66 |
| 2008 | A Moral Right: The Politics of Dirty HarryMovie | Self | 66 |
| 2008 | The Craft of Dirty HarryMovie | Self | 66 |
| 2004 | Homeland SecurityMovie | Senator | 62 |
| 2002 | Without a TraceSeries | Carl Monroe | 60 |
| 2001 | Dirty Harry: The OriginalMovie | Self - Actor | 59 |
| 1998 | Martial LawSeries | Emil Spencer | 56 |
| 1998 | Archibald the Rainbow PainterMovie | The Super Super | 56 |
| 1997 | The PracticeSeries | Edmond Solomon | 55 |
| 1996 | ProfilerSeries | Daniel Wade | 54 |
| 1996 | The SentinelSeries | Robert Dunlop | 54 |
| 1995 | JAGSeries | Thomas Kly | 53 |
| 1995 | Star Trek: Deep Space Nine - The Way of the WarriorMovie | Garak | 53 |
| 1995 | Pumpkinhead II: Blood WingsMovie | Sean Braddock | 53 |
| 1994 | The Puppet MastersMovie | Hawthorne | 52 |
| 1994 | There Goes My BabyMovie | Frank | 52 |
| 1993 | The X-FilesSeries | Dr. Ian Detweiler | 51 |
| 1993 | Walker, Texas RangerSeries | Leo Cabe | 51 |
| 1993 | Star Trek: Deep Space NineSeries | Garak | 51 |
| 1993 | Telling SecretsMovie | Dr. Phillip Eckhart | 51 |
| 1992 | Trancers IIIMovie | Col. Daddy Muthuh | 50 |
| 1991 | Child's Play 3Movie | Sergeant Botnick | 49 |
| 1991 | Into the BadlandsMovie | Sheriff Aaron Starett | 49 |
| 1991 | Prime TargetMovie | Police Commissioner | 49 |
| 1990 | Law & OrderSeries | Phillip Marietta | 48 |
| 1990 | WingsSeries | Michael Foster | 48 |
| 1990 | AppearancesMovie | Mort | 48 |
| 1990 | Fatal CharmMovie | Sheriff Harry Childs | 48 |
| 1989 | The Lady ForgetsMovie | Andrew Simms | 47 |
| 1988 | The Verne Miller StoryMovie | Pretty Boy Floyd | 46 |
| 1988 | Shoot to KillMovie | Harvey | 46 |
| 1988 | Hellbound: Hellraiser IIMovie | Larry Cotton | 46 |
| 1986 | MatlockSeries | Stanley Hayden | 44 |
| 1986 | L.A. LawSeries | Gregory edmonson | 44 |
| 1986 | CobraMovie | Detective Monte | 44 |
| 1985 | MoonlightingSeries | Leslie Hunziger | 43 |
| 1985 | The Twilight ZoneSeries | (segment "Profile in Silver") | 43 |
| 1985 | The Atlanta Child MurdersSeries | Jack Mallard | 43 |
| 1985 | MaskMovie | Dr. Vinton | 43 |
| 1985 | Not My KidMovie | Doctor Royce | 43 |
| 1984 | Murder, She WroteSeries | James Harris | 42 |
| 1983 | The A-TeamSeries | Jackson | 41 |
| 1981 | Falcon CrestSeries | Phil Eberhardt | 39 |
| 1980 | RewardMovie | Frank Morella | 38 |
| 1979 | From Here to EternitySeries | Sgt. Maylon Stark | 37 |
| 1978 | Vega$Series | Derek Razzio | 36 |
| 1978 | The Amazing Spider-ManSeries | — | 36 |
| 1977 | The Incredible HulkSeries | Dr. Stan Rhodes | 35 |
| 1977 | CHiPsSeries | Bill Clayton | 35 |
| 1976 | Lanigan's RabbiMovie | Willie Norman | 34 |
| 1976 | Once an EagleSeries | Reb Reyburne | 34 |
| 1975 | S.W.A.T.Series | — | 33 |
| 1975 | Mackintosh and T.J.Movie | Coley | 33 |
| 1975 | The Drowning PoolMovie | Pat Reavis | 33 |
| 1975 | Someone I TouchedMovie | Frank Berlin | 33 |
| 1975 | A Woman for All MenMovie | Steve McCoy | 33 |
| 1974 | The Family KovackMovie | Butch Kovack | 32 |
| 1974 | House of EvilMovie | — | 32 |
| 1973 | KojakSeries | Roger Layton | 31 |
| 1973 | Charley VarrickMovie | Harman Sullivan | 31 |
| 1973 | Incident at VichyMovie | Major | 31 |
| 1972 | Kung FuSeries | Johnny Walker | 30 |
| 1972 | The CatcherMovie | Andy Hendricks | 30 |
| 1971 | Dirty HarryMovie | Killer | 29 |
| 1967 | IronsideSeries | David Cutter | 25 |
| 1959 | BonanzaSeries | John Harper | 17 |