Filmography56 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2024 | Remembering Gene WilderMovie | Self (archive footage) | 87 |
| 2024 | Hollywood BlackSeries | Self (archive footage) | 87 |
| 2016 | Rules Don't ApplyMovie | Howard Hughes | 79 |
| 2014 | I Am DivineMovie | Self (archive) | 77 |
| 2008 | Revolution! The Making of 'Bonnie and Clyde'Movie | Self | 71 |
| 2008 | Gonzo: The Life and Work of Dr. Hunter S. ThompsonMovie | Self (archive footage) | 71 |
| 2007 | The Graham Norton ShowSeries | Self | 70 |
| 2006 | Witness to 'Reds'Movie | Self | 69 |
| 2005 | Inside Deep ThroatMovie | Self (archive footage) | 68 |
| 2005 | Kathy Griffin: My Life on the D-ListSeries | Self | 68 |
| 2003 | Easy Riders, Raging Bulls: How the Sex 'n' Drugs 'n' Rock 'n' Roll Generation Saved HollywoodMovie | Self | 66 |
| 2001 | Town & CountryMovie | Porter Stoddard | 64 |
| 1999 | Playboy: Playmate Pajama PartyMovie | — | 62 |
| 1999 | Forever HollywoodMovie | Self | 62 |
| 1999 | Playmate Pajama PartyMovie | self | 62 |
| 1998 | BulworthMovie | Jay Bulworth | 61 |
| 1998 | ParkinsonSeries | Self | 61 |
| 1996 | Shirley Maclaine: Kicking Up Her HeelsMovie | Self (archive footage) | 59 |
| 1995 | The First 100 Years: A Celebration of American MoviesMovie | Self | 58 |
| 1994 | Love AffairMovie | Mike Gambril | 57 |
| 1992 | The Larry Sanders ShowSeries | Warren Beatty | 55 |
| 1991 | BugsyMovie | Ben 'Bugsy' Siegel | 54 |
| 1991 | Madonna: Truth or DareMovie | Self | 54 |
| 1990 | Dick TracyMovie | Dick Tracy | 53 |
| 1987 | IshtarMovie | Lyle Rogers | 50 |
| 1987 | SeitenblickeSeries | self | 50 |
| 1985 | George Stevens: A Filmmaker's JourneyMovie | Self | 48 |
| 1982 | Night of 100 StarsMovie | Self | 45 |
| 1981 | RedsMovie | John Reed | 44 |
| 1978 | Heaven Can WaitMovie | Joe Pendleton | 41 |
| 1978 | The Kennedy Center HonorsSeries | Self | 41 |
| 1975 | ShampooMovie | George Roundy | 38 |
| 1975 | The FortuneMovie | Nicky Wilson | 38 |
| 1974 | The Parallax ViewMovie | Joseph Frady | 37 |
| 1974 | Dinah!Series | Self | 37 |
| 1971 | McCabe & Mrs. MillerMovie | John McCabe | 34 |
| 1971 | $Movie | Joe Collins | 34 |
| 1971 | Film '72Series | Self | 34 |
| 1970 | The Only Game in TownMovie | Joe Grady | 33 |
| 1968 | The Movie OrgyMovie | Clyde Barrow (archive footage) | 31 |
| 1968 | The Dick Cavett ShowSeries | Self - Guest | 31 |
| 1967 | Bonnie and ClydeMovie | Clyde Barrow | 30 |
| 1966 | KaleidoscopeMovie | Barney Lincoln | 29 |
| 1966 | Promise Her AnythingMovie | Harley Rummel | 29 |
| 1965 | Mickey OneMovie | Mickey | 28 |
| 1964 | LilithMovie | Vincent Bruce | 27 |
| 1962 | All Fall DownMovie | Berry-Berry Willart | 25 |
| 1961 | Splendor in the GrassMovie | Bud Stamper | 24 |
| 1961 | The Roman Spring of Mrs. StoneMovie | Paolo di Leo | 24 |
| 1959 | One Step BeyondSeries | Harry Grayson | 22 |
| 1959 | The Many Loves of Dobie GillisSeries | Milton Armitage | 22 |
| 1957 | SuspicionSeries | Boy | 20 |
| 1957 | The Night America TrembledMovie | 1st Card Player | 20 |
| 1953 | The OscarsSeries | Self | 16 |
| 1950 | What's My Line?Series | Self - Mystery Guest | 13 |
| 1948 | Studio OneSeries | Card Player #1 | 11 |