| 2026 | Peter Asher: Everywhere ManMovie | Self | 75 |
| 2024 | Super/Man: The Christopher Reeve StoryMovie | Self (archive footage) | 73 |
| 2024 | Stand-Up: The Laughing TherapySeries | Self (archive footage) | 73 |
| 2023 | Once Upon a StudioMovie | Genie (voice) (archive sound) | 72 |
| 2023 | Commitment to LifeMovie | Self (archive footage) | 72 |
| 2022 | The Animograph, or I Was Born in a ShoeboxMovie | Self (archive footage) | 71 |
| 2021 | A Life in Ten PicturesSeries | Self (archive footage) | 70 |
| 2021 | History of the SitcomSeries | Self (archive footage) - Actor | 70 |
| 2020 | The Paley Center Salutes Law & Order: SVUMovie | (archive footage) | 69 |
| 2020 | Robin's WishMovie | Himself (archive footage) | 69 |
| 2016 | Koko: The Gorilla Who Talks to PeopleMovie | Self (archive footage) | 65 |
| 2016 | Too Hip for the Room: The Righteous Reign of Lord BuckleyMovie | Self | 65 |
| 2015 | Thank You, Del: The Story of the Del Close MarathonMovie | Self (archive footage) | 64 |
| 2015 | Behind Closed Doors with Natalie MoralesSeries | Self (archive footage) | 64 |
| 2015 | Another Take on… Mrs. DoubtfireMovie | Self (Archive) | 64 |
| 2014 | Night at the Museum: Secret of the TombMovie | Theodore Roosevelt | 63 |
| 2014 | The Angriest Man in BrooklynMovie | Henry Altmann | 63 |
| 2014 | AltmanMovie | Self | 63 |
| 2014 | All About Ann: Governor Richards of the Lone Star StateMovie | Self (archive footage) | 63 |
| 2014 | 3 Still StandingMovie | Self | 63 |
| 2014 | Robin Williams - Live Across AustraliaMovie | Self | 63 |
| 2013 | The ButlerMovie | Dwight Eisenhower | 62 |
| 2013 | The Crazy OnesSeries | Simon Roberts | 62 |
| 2013 | The Big WeddingMovie | Father Monaghan | 62 |
| 2013 | Richard Pryor: Omit the LogicMovie | Self | 62 |
| 2013 | Comic Relief ZeroMovie | Self (archive footage) | 62 |
| 2013 | Kelly Clarkson's Cautionary Christmas Music TaleMovie | Self | 62 |
| 2012 | Final Cut: Ladies and GentlemenMovie | (archive footage) | 61 |
| 2012 | RadiomanMovie | Self | 61 |
| 2012 | Inside ComedySeries | Self | 61 |
| 2012 | Persistence of VisionMovie | Himself | 61 |
| 2011 | Happy Feet TwoMovie | Ramon / Lovelace (voice) | 60 |
| 2011 | Classic TV Bloopers UncensoredMovie | Mork (archive footage) | 60 |
| 2011 | WilfredSeries | Dr. Eddy | 60 |
| 2010 | 2Everything2Terrible2: Tokyo DriftMovie | (archive footage) | 59 |
| 2010 | LouieSeries | Robin | 59 |
| 2009 | Night at the Museum: Battle of the SmithsonianMovie | Theodore Roosevelt | 58 |
| 2009 | Alan Carr: Chatty ManSeries | Self | 58 |
| 2009 | The Jay Leno ShowSeries | Self | 58 |
| 2009 | Old DogsMovie | Dan | 58 |
| 2009 | ShrinkMovie | Holden | 58 |
| 2009 | Robin Williams: Weapons of Self DestructionMovie | Self | 58 |
| 2009 | SpongeBob's Truth or SquareMovie | Self | 58 |
| 2008 | The Bonnie Hunt ShowSeries | Self | 57 |
| 2008 | The Madness and Misadventures of MunchausenMovie | Self | 57 |
| 2008 | Dreams with Sharp TeethMovie | Self | 57 |
| 2008 | Starz Inside: Ladies or GentlemenMovie | Self (archive footage) | 57 |
| 2008 | We Are Most AmusedMovie | Self | 57 |
| 2008 | History of the JokeMovie | Self | 57 |
| 2007 | The Graham Norton ShowSeries | Self | 56 |
| 2007 | The Pixar StoryMovie | Self (archive footage) | 56 |
| 2007 | Fog City MavericksMovie | Self | 56 |
| 2007 | August RushMovie | Maxwell "Wizard" Wallace | 56 |
| 2007 | Mr. Warmth: The Don Rickles ProjectMovie | Self | 56 |
| 2007 | Shrink RapSeries | Self | 56 |
| 2007 | Cannes: All AccessMovie | Self | 56 |
| 2007 | Elton 60: Live At Madison Square GardenMovie | Self | 56 |
| 2007 | Dawn French's Boys Who Do ComedySeries | Self | 56 |
| 2006 | Night at the MuseumMovie | Theodore Roosevelt | 55 |
| 2006 | Happy FeetMovie | Ramon / Lovelace (voice) | 55 |
| 2006 | Man of the YearMovie | Tom Dobbs | 55 |
| 2006 | The Night ListenerMovie | Gabriel Noone | 55 |
| 2006 | VH1 Rock HonorsSeries | Himself | 55 |
| 2006 | RVMovie | Bob Munro | 55 |
| 2006 | Everyone's HeroMovie | Napoleon Cross (uncredited) | 55 |
| 2006 | JoJo: The Pop PrincessMovie | Himself | 55 |
| 2006 | RV Nation: The Culture of Road WarriorsMovie | Self | 55 |
| 2006 | Robin Williams: A Family AffairMovie | Self | 55 |
| 2006 | Barry Sonnenfeld: The Kosher CowboyMovie | Self | 55 |
| 2005 | RobotsMovie | Fender (voice) | 54 |
| 2005 | The Late Late Show with Craig FergusonSeries | Self | 54 |
| 2005 | The AristocratsMovie | Self | 54 |
| 2005 | Earth to AmericaMovie | Self | 54 |
| 2005 | Mind of MenciaSeries | — | 54 |
| 2005 | RomanekianMovie | Self | 54 |
| 2004 | The Final CutMovie | Alan W. Hakman | 53 |
| 2004 | NoelMovie | Charlie Boyd / The Priest | 53 |
| 2003 | Jimmy Kimmel Live!Series | Self | 52 |
| 2003 | The Ellen DeGeneres ShowSeries | Self | 52 |
| 2003 | Can't Buy Me Lunch: Another Look at The RutlesMovie | Hans Hänkie | 52 |
| 2003 | Celebrities UncensoredSeries | Self | 52 |
| 2003 | Richard Pryor: I Ain't Dead Yet, #*%$#@!!Movie | Self | 52 |
| 2003 | Real Time with Bill MaherSeries | Self | 52 |
| 2002 | InsomniaMovie | Walter Finch | 51 |
| 2002 | American IdolSeries | Ivan 'Bob' Poppanoff the 'Russian Idol' | 51 |
| 2002 | Death to SmoochyMovie | Rainbow Randolph | 51 |
| 2002 | Life with BonnieSeries | Kevin Powalski | 51 |
| 2002 | The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in StereoMovie | Self | 51 |
| 2002 | Death to Smoochy: Behind the Scenes DocumentaryMovie | Self | 51 |
| 2001 | Good Day LiveSeries | Self | 50 |
| 2001 | America | A Tribute to HeroesMovie | Self | 50 |
| 2001 | A.I. Artificial IntelligenceMovie | Dr. Know (voice) | 50 |
| 2001 | The Firesign Theatre: Weirdly CoolMovie | Self | 50 |
| 2000 | Making Jumanji: The Realm of ImaginationMovie | Self / Alan Parrish | 49 |
| 2000 | The Beatles RevolutionMovie | Self | 49 |
| 2000 | Chuck Jones: Extremes and In-Betweens - A Life in AnimationMovie | Self | 49 |
| 1999 | Law & Order: Special Victims UnitSeries | Merritt Rook | 48 |
| 1999 | Teen Choice AwardsSeries | Self | 48 |
| 1999 | SpongeBob SquarePantsSeries | Himself | 48 |
| 1999 | The Early ShowSeries | Self | 48 |
| 1999 | Bicentennial ManMovie | Andrew | 48 |
| 1999 | Get Bruce!Movie | Self | 48 |
| 1998 | Patch AdamsMovie | Hunter 'Patch' Adams | 47 |
| 1998 | What Dreams May ComeMovie | Chris Nielsen | 47 |
| 1998 | L.A. DoctorsSeries | Hugo Kingsley | 47 |
| 1998 | Hollywood SquaresSeries | Self - Panelist | 47 |
| 1998 | ParkinsonSeries | Self | 47 |
| 1998 | George Martin: In My LifeMovie | Self | 47 |
| 1997 | Good Will HuntingMovie | Sean Maguire | 46 |
| 1997 | The ViewSeries | Self | 46 |
| 1997 | Deconstructing HarryMovie | Mel | 46 |
| 1997 | FlubberMovie | Professor Philip Brainard | 46 |
| 1997 | Fathers' DayMovie | Dale Putley | 46 |
| 1996 | The Daily ShowSeries | Self | 45 |
| 1996 | HamletMovie | Osric | 45 |
| 1996 | The Secret AgentMovie | The Professor (uncredited) | 45 |
| 1996 | JackMovie | Jack Powell | 45 |
| 1996 | Clive Anderson All TalkSeries | Self | 45 |
| 1995 | To Wong Foo, Thanks for Everything! Julie NewmarMovie | John Jacob Jingleheimer Schmidt (uncredited) | 44 |
| 1995 | JumanjiMovie | Alan Parrish | 44 |
| 1995 | The First 100 Years: A Celebration of American MoviesMovie | Self | 44 |
| 1995 | Aladdin on IceMovie | Genie (voice) (uncredited) | 44 |
| 1995 | Comic Relief VIIMovie | Self - Host | 44 |
| 1994 | FriendsSeries | Tomas (uncredited) | 43 |
| 1994 | Inside the Actors StudioSeries | Self | 43 |
| 1994 | The World of Jim HensonMovie | Self (archive footage) | 43 |
| 1994 | Being HumanMovie | Hector | 43 |
| 1993 | Mrs. DoubtfireMovie | Daniel Hillard / Mrs. Doubtfire | 42 |
| 1993 | Homicide: Life on the StreetSeries | Robert Ellison | 42 |
| 1993 | Late Show with David LettermanSeries | Self - Guest | 42 |
| 1993 | Sesame Street's 25th Birthday: A Musical CelebrationMovie | Self (segment "Monster in the Mirror") | 42 |
| 1993 | Late Night with Conan O'BrienSeries | Self - Guest | 42 |
| 1993 | A Tribute to Sam KinisonMovie | Self | 42 |
| 1993 | An Evening with Lily Tomlin and FriendsMovie | Self | 42 |
| 1992 | The Larry Sanders ShowSeries | Robin Williams | 41 |
| 1992 | The Tonight Show with Jay LenoSeries | Self | 41 |
| 1992 | ToysMovie | Leslie Zevo | 41 |
| 1992 | FernGully: The Last RainforestMovie | Batty Koda (voice) | 41 |
| 1992 | Terry Wogan's Friday NightSeries | Self | 41 |
| 1992 | AladdinMovie | Genie / Peddler (voice) | 41 |
| 1992 | AladdinMovie | Genie / Peddler (voice) | 41 |
| 1992 | A Spinal Tap Reunion: The 25th Anniversary London Sell-OutMovie | Robin Williams | 41 |
| 1991 | HookMovie | Peter Banning / Peter Pan | 40 |
| 1991 | The Fisher KingMovie | Parry | 40 |
| 1991 | Shakes the ClownMovie | Mime Class Instructor | 40 |
| 1991 | Charlie RoseSeries | Self | 40 |
| 1991 | A Wish for Wings That WorkMovie | Kiwi (voice) (credited as Sudy Nim) | 40 |
| 1990 | The Earth Day SpecialMovie | Everyman | 39 |
| 1990 | AwakeningsMovie | Malcolm Sayer | 39 |
| 1990 | Cadillac ManMovie | Joey O'Brien | 39 |
| 1990 | Comic Relief '90Movie | Self | 39 |
| 1989 | The SimpsonsSeries | Dr. J. Loren Pryor (voice) (as Doug Hill) | 38 |
| 1989 | Dead Poets SocietyMovie | John Keating | 38 |
| 1989 | Saturday Night Live: 15th AnniversaryMovie | Self | 38 |
| 1989 | Comic Relief IIIMovie | — | 38 |
| 1989 | I'm from HollywoodMovie | Self | 38 |
| 1989 | Back to NeverlandMovie | Robin | 38 |
| 1988 | LIVE with Kelly and MarkSeries | Self - Guest | 37 |
| 1988 | The Adventures of Baron MunchausenMovie | King of the Moon | 37 |
| 1988 | Portrait of a White MarriageMovie | Bill Lohmer – Air Conditioning Salesman (uncredited) | 37 |
| 1988 | Portrait of a White MarriageMovie | Air Conditioning Salesman | 37 |
| 1988 | Free to Be... a FamilyMovie | Self | 37 |
| 1987 | Sacrée soiréeSeries | Self | 36 |
| 1987 | BiographySeries | Self | 36 |
| 1987 | Good Morning, VietnamMovie | Adrian Cronauer | 36 |
| 1987 | Jonathan Winters: On the LedgeMovie | Self | 36 |
| 1987 | Dear America: Letters Home from VietnamMovie | (voice) | 36 |
| 1987 | Superstars and their MomsMovie | Self | 36 |
| 1987 | Citizen SteveMovie | Robin Leach | 36 |
| 1986 | American MastersSeries | Self | 35 |
| 1986 | Seize the DayMovie | Tommy Wilhelm | 35 |
| 1986 | The Best of TimesMovie | Jack Dundee | 35 |
| 1986 | Club ParadiseMovie | Jack Moniker | 35 |
| 1986 | The Young Comedians All-Star ReunionMovie | Self | 35 |
| 1986 | Barbra Streisand: One VoiceMovie | Self - Guest Performer | 35 |
| 1986 | Max Headroom's Giant Christmas TurkeyMovie | Self | 35 |
| 1986 | Bridge School Benefit Concert 1986Movie | Self | 35 |
| 1985 | Richard Lewis: I'm In PainMovie | Self | 34 |
| 1982 | Faerie Tale TheatreSeries | The Frog / Prince Robin | 31 |
| 1982 | The World According to GarpMovie | T.S. Garp | 31 |
| 1982 | Night of 100 StarsMovie | Self | 31 |
| 1982 | Late Night with David LettermanSeries | Self - Guest | 31 |
| 1982 | The Billy Crystal Comedy HourSeries | Himself | 31 |
| 1982 | I Love LibertyMovie | Self | 31 |
| 1982 | The Mork & Mindy / Laverne & Shirley / Fonz HourSeries | Mork (voice) | 31 |
| 1982 | The Tale of the Frog PrinceMovie | The Frog / Prince Robin | 31 |
| 1982 | Catch A Rising Star: 10th Anniversary SpecialMovie | Self | 31 |
| 1980 | PopeyeMovie | Popeye | 29 |
| 1980 | Andy Kaufman Plays Carnegie HallMovie | Self (uncredited) | 29 |
| 1979 | Sitcom: The Adventures of Garry MarshallMovie | Self | 28 |
| 1979 | Out of the BlueSeries | Mork | 28 |
| 1978 | Mork & MindySeries | Mork | 27 |
| 1977 | Laugh-InSeries | Regular Performer | 26 |
| 1977 | Eight Is EnoughSeries | The Circuit Breakers Member | 26 |
| 1977 | Can I Do It Till I Need Glasses?Movie | Lawyer / Man with Toothache (uncredited) | 26 |
| 1977 | The Richard Pryor ShowSeries | Various | 26 |
| 1977 | The 2nd Annual HBO Young Comedians ShowMovie | Self | 26 |
| 1975 | Saturday Night LiveSeries | Self - Host | 24 |
| 1974 | Happy DaysSeries | Mork | 23 |
| 1969 | Sesame StreetSeries | Self | 18 |
| 1962 | The Tonight Show Starring Johnny CarsonSeries | Self | 11 |
| 1953 | The OscarsSeries | Self | 2 |
| 0 | Untitled Nathan Lane DocumentaryMovie | Self (archive footage) | — |