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)
Eva Bartley Polly Polly See fewer	Vikings (2013)
Ruth Bradley Moya Cassidy Moya Cassidy See fewer	Grabbers (2012)
Lynn Cahill Julie Collins Julie Collins See fewer	The Courier (1988)
Virginia Cole Mrs. Dolan Mrs. Dolan See fewer	Crossfire (1988)
Daragh Corcoran Maloney Brother Maloney Brother See fewer	The Clinic (I) (2003)
Mark Corcoran Maloney Brat Maloney Brat See fewer	The Clinic (I) (2003)
Cotchie D'Arcy Mrs. Flynn Mrs. Flynn See fewer	Inside Out (1985)
Brian Doherty Trevor Dunne Trevor Dunne See fewer	A Street Cat Named Bob (2016)
Phelim Drew Gerry Gerry See fewer	My Left Foot (1989)
Sean Flanagan Sean Connell Sean Connell See fewer	Squatters (2020)
Peter Halpin Fergus Doran Fergus Doran See fewer	Daredevil (2015)
Rory Keenan Michael Michael See fewer	The Guard (2011)
Ruth McCabe Maria Geraghty Maria Geraghty See fewer	My Left Foot (1989)
Oonagh Montague Mrs. Maloney Mrs. Maloney See fewer	The Clinic (I) (2003)
Chris Newman Tommy Geraghty Tommy Geraghty See fewer	Ferocious Planet (2011)
Tatiana Ouliankina Natalia Riabushkin Natalia Riabushkin See fewer	Short Order (2005)
Denis Tuohy Bill Dawson Bill Dawson See fewer	Strength and Honour (2007)