Name	Known for
James D'Arcy Ernie Coyne Ernie Coyne See fewer	Cloud Atlas (2012)
Frank Laverty Kelly Kelly See fewer	Michael Collins (1996)
Vincent Regan Tom O'Toole Tom O'Toole See fewer	Snow White and the Huntsman (2012)
Paloma Baeza Ita Feeney Ita Feeney See fewer	Sunshine (2007)
Dawn Bradfield Ursula Feeney Ursula Feeney See fewer	King Arthur (2004)
Brendan Coyle Michael Collins Michael Collins See fewer	Downton Abbey (2010)
Nuala O'Neill Eileen O'Toole Eileen O'Toole See fewer	Titanic Town (1998)
Susan Fitzgerald Mrs. Coyne Mrs. Coyne See fewer	The Serpent's Kiss (1997)
Marion O'Dwyer Aunt Maeve Aunt Maeve See fewer	Love, Rosie (2014)
Kieran Hurley Demspey Demspey See fewer	Batman Begins (2005)
Marie Jones Mrs. Feeney Mrs. Feeney See fewer	Philomena (2013)
Johnny O'Donnell Tony Feeney (as Jonathan O'Donnell) Tony Feeney (as Jonathan O'Donnell) See fewer	We Were the Lucky Ones (2024)
Demien McAdam Robert Robert See fewer	Amongst Women (1998)
Shane Hagan Joe Joe See fewer	Saving Private Ryan (1998)
Michael McElhatton Cathal Brugha Cathal Brugha See fewer	Game of Thrones (2011)
Anthony Brophy Mulcahy Mulcahy See fewer	Lady Chatterley's Lover (I) (2022)
Paul Ronan Liam Lynch Liam Lynch See fewer	How I Live Now (2013)
Martin Phillips Photographer Photographer See fewer	Michael Collins (1996)
Alan O'Neill National Army Officer National Army Officer See fewer	Sons of Anarchy (2008)
Gary Cooke Disgusted National Army Soldier Disgusted National Army Soldier See fewer	Apres Match (1994)
Tom O'Leary National Army Soldier National Army Soldier See fewer	Fair City (1989)
Patrick O'Donnell IRA Irregular 1 IRA Irregular 1 See fewer	Rebel Heart (2001)
Kevin O'Leary IRA Irregular 2 IRA Irregular 2 See fewer	Rebel Heart (2001)
Patrick O'Donnell IRA Irregular 1 IRA Irregular 1 See fewer	The Fading Light (2009)
Paul Tall-Order Ritchie IRA IRA See fewer	Blind Man's Bluff (2022)