Name	Known for
David Wilmot Dr. Ed Costello Dr. Ed Costello See fewer	Anna Karenina (I) (2012)
Dominic Mafham Dan Woodhouse Dan Woodhouse See fewer	Ophelia (I) (2018)
Aisling O'Sullivan Dr. Cathy Costello Dr. Cathy Costello See fewer	Raw (2008)
Norma Sheahan Fiona McColgan Fiona McColgan See fewer	Dead Still (2020)
Gary Lydon Patrick Murray Patrick Murray See fewer	The Banshees of Inisherin (2022)
Lorraine Pilkington Susie Cassidy Susie Cassidy See fewer	Human Traffic (1999)
Amy Huberman Daisy O'Callaghan Daisy O'Callaghan See fewer	The Bachelor Weekend (2013)
Gertrude Montgomery Aine Flanagan Aine Flanagan See fewer	Ondine (2009)
Rachel Pilkington Keelin Geraghty (as Rachael Pilkington) Keelin Geraghty (as Rachael Pilkington) See fewer	The Clinic (I) (2003)
Geraldine Plunkett Mrs. Fleming Mrs. Fleming See fewer	Glenroe (1983)
Chris O'Dowd Brendan Davenport Brendan Davenport See fewer	Bridesmaids (I) (2011)
Sam Corry Alex / Chris Walsh Alex / Chris Walsh See fewer	Primeval (2007)
David Cairnduff Mick Twomey Mick Twomey See fewer	Bachelors Walk (2001)
Catherine Dunne Woman #2 Woman #2 See fewer	Foundation (2021)
Catherine Dunne Woman #2 Woman #2 See fewer	Breakfast on Pluto (2005)
Sean Flanagan Sean Connell Sean Connell See fewer	Squatters (2020)
Conor Horgan Angry Patient Angry Patient See fewer	The Last Time (2002)
Ruth McCabe Maria Geraghty Maria Geraghty See fewer	My Left Foot (1989)
Ian McElhinney Joseph McGarry Joseph McGarry See fewer	Hamlet (1996)
Francine Mulrooney Woman #1 Woman #1 See fewer	Single-Handed (2007)
Gerry O'Brien Decorator #1 Decorator #1 See fewer	Reign of Fire (2002)
Simon O'Gorman Billy Flanagan Billy Flanagan See fewer	The Escapist (2002)
Tatiana Ouliankina Natalia Riabushkin Natalia Riabushkin See fewer	Short Order (2005)
Gene Rooney Female Patient Female Patient See fewer	The Woman in the Wall (2023)
Annette Tierney Nurse Riley Nurse Riley See fewer	Game of Thrones (2011)