Byrne was the first of six children, born in Dublin, Ireland. His father was a cooper and his mother a hospital worker. He was raised Catholic and educated by the Irish Christian Brothers. He spent five years of his childhood in a seminary training to be a Catholic priest. He later said, "I spent five years in the seminary and I suppose it was ...
Won 1 Golden Globe. Another 5 wins & 15 nominations.
| Movie | Mad to Be Normal | Jim Roberts | 2016 |
| Movie | A World War II Fairytale: The Making of Michael Mann's 'The Keep' | Unknown | 2016 |
| Movie | Lies We Tell | Unknown | 2016 |
| Movie | Carrie Pilby | Unknown | 2016 |
| Series | Vikings: Athelstan's Journal | Unknown | 2015 |
| Movie | Louder Than Bombs | Unknown | 2015 |
| Series | Vikings | Unknown | 2015 |
| Movie | The 33 | Unknown | 2015 |
| Movie | No Pay, Nudity | Unknown | 2015 |
| Movie | Nobody Wants the Night | Unknown | 2015 |
| Movie | Vampire Academy | Unknown | 2014 |
| Series | Quirke | Unknown | 2014 |
| Movie | Michael Des Barres: Who Do You Want Me to Be? | Unknown | 2014 |
| Movie | All Things to All Men | Unknown | 2013 |
| Movie | Danny Boy: The Ballad That Bewitched the World | Unknown | 2013 |
| Movie | Behind the Sword in the Stone | Unknown | 2013 |
| Movie | Just a Sigh | Unknown | 2013 |
| Series | Secret State | Unknown | 2012 |
| Movie | I, Anna | Unknown | 2012 |
| Movie | Capital | Unknown | 2012 |
| Movie | Tent City, U.S.A. | Unknown | 2012 |
| Movie | A Man's Story | Himself | 2012-03-09 |
| Movie | Dreaming the Quiet Man | Unknown | 2010 |
| Series | Special Collector's Edition | Unknown | 2010-08-16 |
| Movie | The Women of SNL | Unknown | 2010 |
| Movie | Perrier's Bounty | Unknown | 2009 |
| Movie | Leningrad | Unknown | 2009 |
| Movie | The 61st Primetime Emmy Awards | Unknown | 2009-09-20 |
| Series | In Treatment | Unknown | 2009 |
| Movie | The 62nd Annual Tony Awards | Unknown | 2008 |
| Movie | AFI's 10 Top 10: America's 10 Greatest Films in 10 Classic Genres | Himself | 2008-06-17 |
| Movie | Prodigal Sons | Unknown | 2008 |
| Movie | TV Guide Live at the Emmy Awards | Unknown | 2008 |
| Movie | Gabriel Byrne: Stories from Home | Unknown | 2008 |
| Movie | The 60th Primetime Emmy Awards | Unknown | 2008 |
| Movie | Still Birth Chicken | Unknown | 2008 |
| Series | Inside the Actors Studio | Unknown | 2008 |
| Movie | 2:22 | Unknown | 2008 |
| Series | The Graham Norton Show | Unknown | 2007-02-22 |
| Movie | Saturday Night Live in the '90s: Pop Culture Nation | Unknown | 2007 |
| Series | Up Close with Carrie Keagan | Unknown | 2007-02-21 |
| Movie | 4th Irish Film and Television Awards | Unknown | 2007 |
| Series | Xposé | Unknown | 2007-04-16 |
| Movie | Emotional Arithmetic | Unknown | 2007 |
| Movie | Played | Unknown | 2006 |
| Series | At the Movies | Unknown | 2006 |
| Series | The Late Late Show | Unknown | 2006 |
| Movie | Jindabyne | Unknown | 2006 |
| Movie | Wah-Wah | Unknown | 2005 |
| Movie | Assault on Precinct 13 | Unknown | 2005 |
| Movie | Riverdance: The Ten Years | Unknown | 2005 |
| Series | Enough Rope with Andrew Denton | Unknown | 2005 |
| Series | Tubridy Tonight | Unknown | 2005 |
| Series | NY Graham Norton | Unknown | 2004 |
| Movie | Shade | Miller | 2004-03-12 |
| Movie | The Bridge of San Luis Rey | Unknown | 2004 |
| Movie | Patrick | Unknown | 2004 |
| Movie | 2nd Irish Film and Television Awards | Unknown | 2004 |
| Movie | P.S. | Unknown | 2004 |
| Movie | Vanity Fair | Unknown | 2004-09-01 |
| Movie | Flight from Death: The Quest for Immortality | Unknown | 2003 |
| Series | Heroes of Comedy: Women on Top | Unknown | 2003-03-01 |
| Series | Tinseltown TV | Unknown | 2003-08-02 |
| Movie | The 100 Greatest Movie Stars | Unknown | 2003 |
| Movie | Emmett's Mark | Unknown | 2002 |
| Movie | Virginia's Run | Unknown | 2002 |
| Movie | Horses: The Story of Equus | Unknown | 2002 |
| Movie | Round Up: Deposing 'The Usual Suspects' | Unknown | 2002 |
| Movie | Keyser Söze: Lie or Legend? | Unknown | 2002 |
| Movie | Ghost Ship | Unknown | 2002 |
| Movie | RIP 2002 | Unknown | 2002 |
| Series | Intimate Portrait | Unknown | 2002 |
| Movie | Spider | Unknown | 2002 |
| Movie | The 100 Greatest Films | Unknown | 2001 |
| Movie | The 2001 IFP/West Independent Spirit Awards | Unknown | 2001 |
| Movie | Saturday Night Live: The Best of Molly Shannon | Unknown | 2001 |
| Movie | Canone inverso - Making Love | Unknown | 2000 |
| Series | Madigan Men | Benjamin Madigan | 2000-10-06 |
| Movie | End of Days: The Beginning | Unknown | 2000 |
| Movie | Mad About Mambo | Unknown | 2000 |
| Movie | When Brendan Met Trudy | Unknown | 2000 |
| Movie | Nickelodeon Kids' Choice Awards 2000 | Unknown | 2000 |
| Movie | End of Days | Unknown | 1999 |
| Movie | Stigmata | Unknown | 1999 |
| Series | WWE Smackdown! | Unknown | 1999-04-29 |
| Series | Independent Lens | Unknown | 1999-08-09 |
| Movie | Divine Rites: The Story of Stigmata | Unknown | 1999 |
| Movie | Saturday Night Live 25 | Unknown | 1999-09-25 |
| Series | Glenroe | Unknown | 1999 |
| Movie | Quest for Camelot | Unknown | 1998 |
| Movie | Enemy of the State | Brill | 1998-11-20 |
| Movie | The Man in the Iron Mask | D'Artagnan | 1998-03-13 |
| Movie | Pirates | Unknown | 1998 |
| Movie | The Brylcreem Boys | Unknown | 1998 |
| Movie | Polish Wedding | Unknown | 1998 |
| Movie | Smilla's Sense of Snow | Unknown | 1997 |
| Movie | This Is the Sea | Unknown | 1997 |
| Movie | The End of Violence | Ray Bering | 1997-09-12 |
| Series | The View | Unknown | 1997-08-11 |
| Movie | Weapons of Mass Distraction | Unknown | 1997 |
| Movie | Mad Dog Time | Unknown | 1996 |
| Movie | The Last of the High Kings | Unknown | 1996 |
| Movie | Dr Hagard's Disease | Unknown | 1996 |
| Movie | Draiocht | Unknown | 1996 |
| Series | The Rosie O'Donnell Show | Unknown | 1996-06-10 |
| Series | Lauren Hutton and... | Unknown | 1996 |
| Movie | Somebody Is Waiting | Unknown | 1996 |
| Movie | 1996 MTV Movie Awards | Himself | 1996 |
| Movie | The 18th Annual CableACE Awards | Himself - Presenter | 1996-11-16 |
| Movie | Past Into Present | Unknown | 1996 |
| Movie | Out of Ireland | Unknown | 1995 |
| Movie | Irish Cinema: Ourselves Alone? | Unknown | 1995 |
| Movie | The Usual Suspects | Keaton | 1995-09-15 |
| Movie | Buffalo Girls | Unknown | 1995 |
| Movie | Frankie Starlight | Unknown | 1995 |
| Movie | Dead Man | Unknown | 1995 |
| Movie | Trial by Jury | Unknown | 1994 |
| Movie | In the Name of the Father | Unknown | 1994-02-25 |
| Movie | A Simple Twist of Fate | Unknown | 1994 |
| Movie | Royal Deceit | Unknown | 1994 |
| Movie | Little Women | Unknown | 1994 |
| Series | HBO First Look | Unknown | 1994-03-01 |
| Movie | In Flags or Flitters: Pictures of Dublin | Unknown | 1993 |
| Series | Late Night with Conan O'Brien | Unknown | 1993-09-13 |
| Movie | A Dangerous Woman | Unknown | 1993 |
| Series | The Little Picture Show | Unknown | 1993-01-05 |
| Movie | Point of No Return | Unknown | 1993-03-19 |
| Series | Late Show with David Letterman | Unknown | 1993-08-30 |
| Series | The 49th Annual Golden Globe Awards | Unknown | 1992 |
| Series | The Tonight Show with Jay Leno | Unknown | 1992-05-25 |
| Movie | Cool World | Jack Deebs | 1992-07-10 |
| Movie | Into the West | Unknown | 1992 |
| Series | Charlie Rose | Unknown | 1991-09-30 |
| Movie | Miller's Crossing | Unknown | 1990 |
| Movie | Shipwrecked | Unknown | 1990 |
| Movie | Dark Obsession | Unknown | 1989 |
| Movie | A Soldier's Tale | Unknown | 1989 |
| Movie | The Courier | Unknown | 1988 |
| Movie | Siesta | Unknown | 1987 |
| Movie | Lionheart | Unknown | 1987 |
| Movie | Julia and Julia | Unknown | 1987 |
| Movie | Hello Again | Unknown | 1987-11-06 |
| Movie | Defense of the Realm | Unknown | 1986 |
| Movie | Gothic | Unknown | 1986 |
| Series | Mussolini: The Untold Story | Unknown | 1985 |
| Series | Screen Two | Unknown | 1985-01-06 |
| Series | Christopher Columbus | Unknown | 1985 |
| Movie | Reflections | Unknown | 1984 |
| Movie | The Treatment | Unknown | 1984 |
| Movie | The Rocking Horse Winner | Unknown | 1983 |
| Movie | The Keep | Unknown | 1983 |
| Movie | Hanna K. | Unknown | 1983 |
| Movie | Joyce in June | Unknown | 1982 |
| Series | Strangers | Unknown | 1981 |
| Series | Wagner | Unknown | 1981 |
| Movie | Excalibur | Unknown | 1981 |
| Series | The Search for Alexander the Great | Unknown | 1981 |
| Series | Bracken | Unknown | 1980 |
| Movie | The Outsider | Unknown | 1979 |
| Movie | Wings of Ash: Pilot for a Dramatization of the Life of Antonin Artaud | Unknown | 1978 |
| Series | The Riordans | Unknown | 1978 |
| Series | Last of Summer | Unknown | 1978 |
| Series | The Burke Enigma | Unknown | 1978 |
| Movie | On a Paving Stone Mounted | Unknown | 1978 |
| Series | Live from Lincoln Center | Unknown | 1976-01-30 |
| Series | Saturday Night Live | Unknown | 1975-10-11 |
| Series | Today | Unknown | 1952-01-14 |