2020The Paley Center Salutes Law & Order: SVU(archive footage)Movie
2015Absolutely AnythingDennis the Dog (voice)Movie
2014Night at the Museum: Secret of the TombTheodore Roosevelt · In Memory OfMovie
2014A Merry Friggin' ChristmasVirgil MitchlerMovie
2014The Angriest Man in BrooklynHenry AltmannMovie
2014BoulevardNolanMovie
2013The Face of LoveRoger StillmanMovie
2013The Crazy OnesSimon Roberts · 22 episodesShow
2013The ButlerDwight H. EisenhowerMovie
2013The Big WeddingFather MonaghanMovie
2012Final Cut: Ladies and Gentlemen(archive footage)Movie
2011Happy Feet TwoRamon / Lovelace (voice)Movie
2011WilfredDr. Eddy · 1 episodeShow
2011Classic TV Bloopers UncensoredMork (archive footage)Movie
20102Everything2Terrible2: Tokyo Drift(archive footage)Movie
2010LouieRobin · 1 episodeShow
2009Robin Williams: Weapons of Self DestructionWriterMovie
2009Monkey MischiefTheodore RooseveltMovie
2009Old DogsDanMovie
2009World's Greatest DadLance ClaytonMovie
2009ShrinkHoldenMovie
2009Night at the Museum: Battle of the SmithsonianTheodore RooseveltMovie
2008Comic Relief: The Greatest... and the LatestMovie
2007August RushMaxwell "Wizard" WallaceMovie
2007License to WedReverend FrankMovie
2006Night at the MuseumTheodore RooseveltMovie
2006Comic Relief 2006Movie
2006Happy FeetRamon / Lovelace (voice)Movie
2006Man of the YearTom DobbsMovie
2006Everyone's HeroNapoleon Cross (uncredited)Movie
2006RVBob MunroMovie
2006The Night ListenerGabriel NooneMovie
2005The Big WhitePaul BarnellMovie
2005Mind of Mencia1 episodeShow
2005RobotsFender (voice)Movie
2004NoelCharlie Boyd / The PriestMovie
2004The Final CutAlan W. HakmanMovie
2004House of DPappassMovie
2003Can't Buy Me Lunch: Another Look at The RutlesHans HänkieMovie
2002Life with BonnieKevin Powalski · 1 episodeShow
2002One Hour PhotoSeymour "Sy" ParrishMovie
2002Robin Williams: Live on BroadwayWriterMovie
2002InsomniaWalter FinchMovie
2002Death to SmoochyRainbow RandolphMovie
2001A.I. Artificial IntelligenceDr. Know (voice)Movie
1999Bicentennial ManAndrewMovie
1999Jakob the LiarJakob HeymMovie
1999Billy Connolly: Erect for 30 YearsMovie
1998Patch AdamsPatch AdamsMovie
1998What Dreams May ComeChris NielsenMovie
1998L.A. DoctorsHugo Kingsley · 1 episodeShow
1997Deconstructing HarryMelMovie
1997Good Will HuntingSean MaguireMovie
1997FlubberProfessor Philip BrainardMovie
1997Fathers' DayDale PutleyMovie
1997Great Minds Think for ThemselvesGenie (voice) · 13 episodesShow
1996HamletOsricMovie
1996The Secret AgentThe Professor (uncredited)Movie
1996JackJack PowellMovie
1996Aladdin and the King of ThievesGenie (voice)Movie
1996The BirdcageArmand GoldmanMovie
1995JumanjiAlan ParrishMovie
1995Aladdin on IceGenie (voice) (uncredited)Movie
1995To Wong Foo, Thanks for Everything! Julie NewmarJohn Jacob Jingleheimer Schmidt (uncredited)Movie
1995Nine MonthsDr. KosevichMovie
1994In Search of Dr. SeussThe FatherMovie
1994Being HumanHectorMovie
1993Mrs. DoubtfireDaniel Hillard / Mrs. Doubtfire · ProducerMovie
1993Homicide: Life on the StreetRobert Ellison · 1 episodeShow
1992A Spinal Tap Reunion: The 25th Anniversary London Sell-OutRobin WilliamsMovie
1992ToysLeslie ZevoMovie
1992AladdinGenie / Peddler (voice)Movie
1992The Larry Sanders ShowRobin Williams · 2 episodesShow
1992FernGully: The Last RainforestBatty Koda (voice)Movie
1991A Wish for Wings That WorkKiwi (voice) (credited as Sudy Nim)Movie
1991The Fisher KingParryMovie