2025BallerinaThe ChancellorMovie
2025Four Letters of LoveMuiris GoreMovie
2023Dance FirstSamuel BeckettMovie
2022The Boy, the Mole, the Fox and the HorseThe Horse (voice)Movie
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2022Murder at Yellowstone CitySheriff AmbroseMovie
2021Death of a Ladies' ManSamuel O'SheaMovie
2020ZeroZeroZeroEdward Lynwood · 2 episodesShow
2020Lost GirlsRichard DormerMovie
2019War of the WorldsBill Ward · 24 episodesShow
2019Land Without GodExecutive ProducerMovie
2018ManiacPorter Milgrim · 5 episodesShow
2018An L.A. MinuteTed GoldMovie
2018HereditarySteve Graham · Executive ProducerMovie
2018My Astonishing Self: Gabriel Byrne on George Bernard ShawNarratorMovie
2018In the CloudDoc WolffMovie
2018Lies We TellDonaldMovie
2018Atlantic Salmon: Lost at SeaNarratorMovie
2017Mad to Be NormalJimMovie
2017Carrie PilbyMr. PilbyMovie
2016No Pay, NudityLester Rosenthal aka Lawrence RoseMovie
2015Endless NightBramMovie
2015Louder Than BombsGene ReedMovie
2015The 33Andre SougarretMovie
2015Vikings: Athelstan's JournalEarl Haraldson (archive footage) · 3 episodesShow
2014QuirkeQuirke · 3 episodesShow
2014Vampire AcademyVictor DashkovMovie
2013Just a SighManMovie
2013All Things To All MenJoseph CorsoMovie
2012CapitalDittmar RiguleMovie
2012Secret StateTom Dawkins · 4 episodesShow
2012John Ford: Dreaming the Quiet ManNarratorMovie
2012Tent City, U.S.AExecutive ProducerMovie
2012I, AnnaD.C.I. Bernie ReidMovie
2010The Women of SNLPriest (archive footage)Movie
2010Perrier's BountyVoice of the Grim Reaper (voice)Movie
2009LeningradPhilip ParkerMovie
20082:22Detective Swain (uncredited)Movie
2008Gabriel Byrne: Stories from HomeMovie
2008Camelot: Live from Lincoln CenterKing ArthurMovie
2008Emotional ArithmeticChristopher LewisMovie
2008In TreatmentDr. Paul Weston · 106 episodesShow
2007Attack on LeningradPhillip Parker · 4 episodesShow
2007Leningrad4 episodesShow
2006JindabyneStewartMovie
2006PlayedEddieMovie
2005Wah-WahHarry ComptonMovie
2005Assault on Precinct 13Captain Marcus DuvallMovie
2004The Bridge of San Luis ReyBrother JuniperMovie
2004P.S.Peter HarringtonMovie
2004Vanity FairThe Marquess of SteyneMovie
2004PatrickPatrickMovie
2003ShadeCharlie MillerMovie
2003Flight from Death: The Quest for ImmortalityNarratorMovie
2002Ghost ShipCaptain Sean MurphyMovie
2002Horses: The Story of EquusNarratorMovie
2002Killing Emmett YoungJack Marlow / Stephen BrackenMovie
2002Virginia's RunFord LoftonMovie
2000When Brendan Met TrudySpecial AppearanceMovie
2000Madigan MenBenjamin Madigan · 12 episodes · Producer · 12 episodesShow
2000Mad About MamboExecutive ProducerMovie
2000Making LoveViolinista / Jeno Varga AdultoMovie
1999End of DaysThe ManMovie
1999Saturday Night Live: 25th Anniversary Special(archive footage)Movie
1999StigmataFather Andrew KiernanMovie
1998Enemy of the State'Brill'Movie
1998Quest for CamelotLionel (voice)Movie
1998PiratesNarrator (voice)Movie
1998The Man in the Iron MaskD'ArtagnanMovie
1998Polish WeddingBolekMovie
1997This Is the SeaRohanMovie
1997The End of ViolenceRayMovie
1997Weapons of Mass DistractionLionel PowersMovie
1997Smilla's Sense of SnowThe MechanicMovie
1996Somebody Is WaitingRoger Ellis · Co-ProducerMovie
1996The Last of the High KingsJack Griffin · Co-Executive Producer · ScreenplayMovie
1996The Brylcreem BoysCommandant O'Brien · ProducerMovie
1996Mad Dog TimeBen LondonMovie