
Movies (Acting Roles)
Sorted by Release Date
The Emperor's New Clothes
Niall O'Brien was 55 in The Emperor's New Clothes as 'Bosun'.Movie Released: Sat, Aug 11 2001

When Brendan Met Trudy
Niall O'Brien was 54 in When Brendan Met Trudy as 'Judge'.Movie Released: Thu, Dec 14 2000

St. Patrick: The Irish Legend
Niall O'Brien was 54 in St. Patrick: The Irish Legend as 'Longhaire'.Movie Released: Sun, Mar 12 2000

The Legend of 1900
Niall O'Brien was 52 in The Legend of 1900 as 'Harbor Master'.Movie Released: Wed, Oct 28 1998

The Last Bus Home
Niall O'Brien was 51 in The Last Bus Home as 'Jessop's Father'.Movie Released: Fri, Oct 17 1997

Broken Harvest
Niall O'Brien was 48 in Broken Harvest as 'Josie McCarthy'.Movie Released: Fri, Sep 16 1994

The Playboys
Niall O'Brien was 46 in The Playboys as 'Police Superintendant'.Movie Released: Wed, Apr 22 1992

Who Bombed Birmingham?
Niall O'Brien was 44 in Who Bombed Birmingham? as 'Walker'.Movie Released: Sun, Apr 22 1990

Rawhead Rex
Niall O'Brien was 40 in Rawhead Rex as 'Det. Insp. Isaac Gissing'.Movie Released: Wed, Oct 01 1986

Half Moon Street
Niall O'Brien was 40 in Half Moon Street as 'Captain Twilley'.Movie Released: Wed, Aug 13 1986

The Outsider
Niall O'Brien was 34 in The Outsider as 'Emmett Donovan'.Movie Released: Mon, Jun 02 1980

Ryan's Daughter
Niall O'Brien was 24 in Ryan's Daughter as 'Bernard'.Movie Released: Thu, Mar 19 1970
TV Shows (Acting Roles)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages

Vikings: Valhalla
Niall O'Brien would have been no older than 63 in Vikings: Valhalla as 'Soldier'.TV Show Released: First Air Date
Fri, Feb 25 2022
Fri, Feb 25 2022

The Royal
Niall O'Brien was 56+ in The Royal as 'Father Carroll'.TV Show Released: First Air Date
Sun, Jan 19 2003
Sun, Jan 19 2003

A Touch of Frost
Niall O'Brien was 46+ in A Touch of Frost as 'Gerry Ryan'.TV Show Released: First Air Date
Sun, Dec 06 1992
Sun, Dec 06 1992

Lovejoy
Niall O'Brien was 39+ in Lovejoy as 'Declan Grady'.TV Show Released: First Air Date
Fri, Jan 10 1986
Fri, Jan 10 1986