2020Superman: Red SonBrainiac (voice)Movie
2017Baby DriverThe ButcherMovie
2016GoliathJames 'JT' Reginald III · 7 episodesShow
2014Paul Williams: Soul InspirationMovie
2012The Ghastly Love of Johnny XCousin QuiltyMovie
2010Valentine's DayRomeo Midnight (voice)Movie
2009CommunityBritta's Contact · 1 episodeShow
2008A Muppets Christmas: Letters to SantaElfMovie
2007Georgia RuleMr. WellsMovie
2005Nowhere ManBar PatronMovie
2004The Princess Diaries 2: Royal EngagementLord HarmonyMovie
2002The Rules of AttractionDuty DoctorMovie
2002Close to You: The Story of the CarpentersMovie
2000A Regular Frankie FanNarratorMovie
1998Postal WorkerMovie
1997Honey, I Shrunk the Kids: The TV Show1 episodeShow
1997The New Batman AdventuresThe Penguin (voice) · 4 episodesShow
1997Perversions of ScienceDr. Mueller · 1 episodeShow
1996Superman: The Animated SeriesPenguin (voice) · 1 episodeShow
1996FirestormDr. TanguMovie
1996Boston CommonFather Rooney · 1 episodeShow
1995The Mask: Animated SeriesDr. Byron (voice) · 1 episodeShow
1995Headless Body in Topless BarCarl LevinMovie
1994Phantom 204035 episodesShow
1994The TickMother of Invention (voice) · 1 episodeShow
1994A Million to JuanJenkinsMovie
1994Hart to Hart: Old Friends Never DieDukeMovie
1993The Town Santa ForgotPomp the ElfMovie
1993Nick & NoelBarnaby (voice)Movie
1993Walker, Texas RangerTumbleweed Tom · 1 episodeShow
1992Batman: The Animated SeriesPenguin (voice) · 7 episodesShow
1992Solar CrisisFreddy the Bomb (voice)Movie
1992Fish PoliceBuddy (voice) · 1 episodeShow
1991The Last HalloweenGleep (Voice)Movie
1991Timeless Tales: The Steadfast Tin SoldierFrogbrautenMovie
1991The Legend of Prince Valiant1 episodeShow
1991The DoorsWarhol PRMovie
1991Frogs!GusMovie
1990Captain Planet and the PlaneteersKujo (voice) · 1 episodeShow
1990Dream OnPaul Williams · 2 episodesShow
1990People Like UsEzzie FenwickMovie
1990Sam Kinison: BannedAttorneyMovie
1989Old GringoCinematographerMovie
1989Chill FactorClifford WhiteMovie
1987Twelfth NightCurioMovie
1987FrogGusMovie
1986My Little Pony65 episodesShow
1986The Blinkins: The Bear and the BlizzardGrog the Frog (voice)Movie
19852271 episodeShow
1985My Little Pony: Escape from CatrinaRep (voice)Movie
1984The Night They Saved ChristmasEdMovie
1984Enchanted Musical Playhouse4 episodesShow
1983Smokey and the Bandit Part 3Little EnosMovie
1982RoosterRooster SteeleMovie
1981The Fall GuyPaul Williams (uncredited) · 1 episodeShow
1981Gimme a Break!1 episodeShow
1980Smokey and the Bandit IILittle EnosMovie
1979Stone Cold DeadJulius KurtzMovie
1979The Paul Williams Comedy ShowPaul Hamilton/Marvin the Martian · 1 episodeShow
1979The Muppet MovieEl Sleazo PianistMovie
1979The Wild Wild West RevisitedMichelito Loveless, Jr.Movie
1978The Cheap DetectiveBoyMovie