Filmography20 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2014 | BoJack HorsemanSeries | Abe Ziegler (voice) | 69 |
| 2012 | Gotham Comedy LiveSeries | Self - Host | 67 |
| 2007 | The GrandMovie | Seth Schwartzman | 62 |
| 2003 | ABC's 50th Anniversary CelebrationMovie | Self | 58 |
| 1984 | Murder, She WroteSeries | Freddy York | 39 |
| 1984 | WonderWorksSeries | Anthony DePalma | 39 |
| 1983 | GrouchoMovie | Groucho Marx | 38 |
| 1982 | Catch A Rising Star: 10th Anniversary SpecialMovie | Self | 37 |
| 1981 | Nobody's PerfektMovie | Dibley | 36 |
| 1981 | TulipsMovie | Leland Irving | 36 |
| 1981 | Lewis & ClarkSeries | Stewart Lewis | 36 |
| 1977 | US Against the WorldMovie | Self | 32 |
| 1976 | Donny & MarieSeries | Self | 31 |
| 1976 | The Captain and TennilleSeries | Self - Guest | 31 |
| 1976 | The Love BoatMovie | Stan Nichol | 31 |
| 1975 | People's Choice AwardsSeries | Self | 30 |
| 1975 | Welcome Back, KotterSeries | Gabe Kotter | 30 |
| 1962 | The Merv Griffin ShowSeries | Self | 17 |
| 1962 | The Tonight Show Starring Johnny CarsonSeries | Self | 17 |
| 1961 | The Mike Douglas ShowSeries | Self - Guest | 16 |