Name	Known for
Michael Legge John King John King See fewer	Angela's Ashes (1999)
Laura O'Toole Cora Collins Cora Collins See fewer	Marple (2004)
Jonathan Byrne Brendan Ruane Brendan Ruane See fewer	The Machine (I) (2013)
Amy Huberman Diane Collins Diane Collins See fewer	The Bachelor Weekend (2013)
Orla Charlton Ann Marie Collins Ann Marie Collins See fewer	6Degrees (2012)
Sean McGinley Fergal Collins Fergal Collins See fewer	On a Clear Day (2005)
Darren McHugh Liam Coffey Liam Coffey See fewer	In the Name of the Father (1993)
Darren Healy Dean (as Darren J. Healy) Dean (as Darren J. Healy) See fewer	Once (2006)
Renee Weldon Sharon O'Connor (as Renée Weldon) Sharon O'Connor (as Renée Weldon) See fewer	Trouble with Sex (2005)
Daragh O'Malley Barry King Barry King See fewer	Sharpe's Peril (2008)
Rory Keenan Kevin King Kevin King See fewer	The Guard (2011)
Eva Bartley Siobhán Siobhán See fewer	Vikings (2013)
Gary Lydon Cathal O'Connor Cathal O'Connor See fewer	The Banshees of Inisherin (2022)
Tom Sullivan Ger Ronan (as Tomás Ó Súilleabháin) Ger Ronan (as Tomás Ó Súilleabháin) See fewer	Monster (2019)
Frank Laverty Tony O'Keefe Tony O'Keefe See fewer	Michael Collins (1996)
Ronan Wilmot Willie Sexton Willie Sexton See fewer	In the Name of the Father (1993)
Viko Nikci Damik Binakaj Damik Binakaj See fewer	Coming Home (V) (2014)
Ger Ryan Maureen Fitzpatrick Maureen Fitzpatrick See fewer	Redemption (2013)
Garrett Keogh Owen O'Neill Owen O'Neill See fewer	Excalibur (1981)
Cathy White Emer O'Keefe Emer O'Keefe See fewer	Nurses (2020)
Cian McCormack Conor O'Keeffe Conor O'Keeffe See fewer	Gangs of New York (2002)
Daire McCormack Oisin O'Keeffe Oisin O'Keeffe See fewer	King Arthur (2004)
Cathleen Bradley Garda Deirdre McArdle Garda Deirdre McArdle See fewer	American Women (2000)
Britta Smith Martha O'Keeffe Martha O'Keeffe See fewer	The Magdalene Sisters (2002)
Stella McCusker Kate O'Farrell Kate O'Farrell See fewer	Five Minutes of Heaven (2009)