Filmography39 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2015 | Grace and FrankieSeries | Leo | 72 |
| 2013 | Ray DonovanSeries | Alan | 70 |
| 2008 | The MentalistSeries | Walter Crew | 65 |
| 2007 | Live!Movie | Network President | 64 |
| 2005 | The CloserSeries | Davis Mayhan | 62 |
| 2005 | Numb3rsSeries | Brett Hanson | 62 |
| 2005 | Criminal MindsSeries | Detective Garrity | 62 |
| 2004 | Starsky & HutchMovie | Original Starsky | 61 |
| 2004 | The Running Man: Game TheoryMovie | Self | 61 |
| 2004 | He's Starsky, I'm HutchMovie | Self | 61 |
| 2003 | Something's Gotta GiveMovie | Dave | 60 |
| 2002 | V Graham NortonSeries | Self | 59 |
| 2001 | And Never Let Her GoMovie | Frank Gugliatta | 58 |
| 1999 | Third WatchSeries | Captain Jack Steeper | 56 |
| 1999 | Where Are They Now?Series | Self | 56 |
| 1996 | E! True Hollywood StorySeries | — | 53 |
| 1996 | The Rosie O'Donnell ShowSeries | Self | 53 |
| 1992 | Derrick contre SupermanMovie | Starsky (archive footage) | 49 |
| 1984 | JealousyMovie | Daniel | 41 |
| 1984 | Attack on FearMovie | Dave Mitchell | 41 |
| 1983 | Princess DaisySeries | North | 40 |
| 1980 | PhobiaMovie | Dr. Peter Ross | 37 |
| 1976 | The Great HoudinisMovie | Harry Houdini | 33 |
| 1975 | Starsky & HutchSeries | David Starsky | 32 |
| 1975 | The Impersonation Murder CaseMovie | Gordon Lampert | 32 |
| 1974 | The Rockford FilesSeries | Ralph Correll | 31 |
| 1974 | Dinah!Series | Self | 31 |
| 1973 | KojakSeries | Lou Giordino | 30 |
| 1973 | TomaSeries | — | 30 |
| 1972 | The Sixth SenseSeries | — | 29 |
| 1972 | The Streets of San FranciscoSeries | — | 29 |
| 1972 | The WaltonsSeries | — | 29 |
| 1972 | Butterflies Are FreeMovie | Ralph Santori | 29 |
| 1971 | CannonSeries | — | 28 |
| 1971 | Fiddler on the RoofMovie | Perchik | 28 |
| 1971 | Film '72Series | Self | 28 |
| 1961 | The Mike Douglas ShowSeries | Self | 18 |
| 1951 | Love of LifeSeries | — | 8 |
| 1944 | Golden Globe AwardsSeries | Self - Presenter | 1 |