Filmography39 titles
| Year | Title | Character | Age at release |
|---|---|---|---|
| 2020 | BelushiMovie | Self (archive footage) | 77 |
| 2014 | Palo AltoMovie | Mr. Wilson | 71 |
| 2011 | TwixtMovie | Melvin | 68 |
| 2010 | The Rally to Restore Sanity and/or FearMovie | Father Guido Sarducci | 67 |
| 2006 | Factory GirlMovie | Mort Silvers | 63 |
| 2005 | Saturday Night Live in the '80s: Lost and FoundMovie | Self | 62 |
| 2003 | Atlantis: Milo's ReturnMovie | Vinny (voice) | 60 |
| 2003 | Rent ControlMovie | Rico | 60 |
| 2002 | Mr. Bill Does VegasMovie | — | 59 |
| 2001 | Atlantis: The Lost EmpireMovie | Vincenzo 'Vinny' Santorini (voice) | 58 |
| 2000 | The Adventures of Rocky & BullwinkleMovie | Fruit Vendor Twins | 57 |
| 1998 | Just the TicketMovie | Tony | 55 |
| 1997 | TouchMovie | Father Navaroli | 54 |
| 1996 | JackMovie | Bartender | 53 |
| 1996 | Ho Ho Nooooooo!!! It's Mr. Bill's Christmas Special!Movie | Father Sarducci | 53 |
| 1995 | CasperMovie | Father Guido Sarducci | 52 |
| 1995 | Unhappily Ever AfterSeries | Father Guido Sarducci | 52 |
| 1995 | One Night StandMovie | Warren Miller | 52 |
| 1993 | Late Night with Conan O'BrienSeries | Father Guido Sarducci | 50 |
| 1993 | Teenage Bonnie and Klepto ClydeMovie | Sanchez | 50 |
| 1990 | BlossomSeries | — | 47 |
| 1990 | The Godfather Part IIIMovie | Dominic Abbandando | 47 |
| 1990 | The Spirit of '76Movie | Translator | 47 |
| 1989 | New York StoriesMovie | Hector | 46 |
| 1989 | Saturday Night Live: 15th AnniversaryMovie | Father Guido Sarducci | 46 |
| 1988 | Joan Rivers and Friends Salute Heidi AbromowitzMovie | Father Guido Sarducci | 45 |
| 1988 | The Smothers Brothers Comedy HourSeries | Father Guido Sarducci | 45 |
| 1987 | Married... with ChildrenSeries | Father Guido Sarducci | 44 |
| 1986 | It's Garry Shandling's ShowSeries | Father Guido Sarducci | 43 |
| 1986 | Father Guido Sarducci's Vatican Inquirer: The Pope's TourMovie | Father Guido Sarducci | 43 |
| 1985 | Head OfficeMovie | Sal | 42 |
| 1984 | PinocchioMovie | Narrator (voice) | 41 |
| 1982 | Faerie Tale TheatreSeries | Narrator (voice) | 39 |
| 1982 | Twilight Theater IIMovie | Self- Guest (as Father Guido Sarducci) | 39 |
| 1980 | FridaysSeries | Father Guido Sarducci | 37 |
| 1980 | Gilda LiveMovie | Father Guido Sarducci | 37 |
| 1975 | Saturday Night LiveSeries | Father Guido Sarducci | 32 |
| 1975 | The Smothers Brothers ShowSeries | — | 32 |
| 1968 | JuliaSeries | — | 25 |