Name	Known for
Jonathan Byrne Floyd Phelan Floyd Phelan See fewer	The Machine (I) (2013)
Una Crawford O'Brien Renee Phelan Renee Phelan See fewer	Single-Handed (2007)
Hilda Fay Tracey McGuigan Kavanagh Tracey McGuigan Kavanagh See fewer	Let the Wrong One In (2021)
Joe Gallagher Dominic Kavanagh Dominic Kavanagh See fewer	In the Land of Saints and Sinners (2023)
Tom Hopkins Christy Phelan Christy Phelan See fewer	Vikings (2013)
Jenny Kavanagh Cleo Cullen Cleo Cullen See fewer	Byzantium (2012)
Alexander Lester Trevor St. John Trevor St. John See fewer	Shortland Street (1992)
Vinnie McCabe Seamus McAleer Seamus McAleer See fewer	Michael Collins (1996)
Philip Michael Joshua Udenze Joshua Udenze See fewer	Mamma Mia! (2008)
Clelia Murphy Niamh Cassidy Niamh Cassidy See fewer	Grabbers (2012)
Bryan Murray Bob Charles Bob Charles See fewer	The Professor and the Madman (2019)
Mick Nolan Ray O'Connell Ray O'Connell See fewer	The Commitments (1991)
Patrick David Nolan Barry O'Hanlon (as Pat Nolan) Barry O'Hanlon (as Pat Nolan) See fewer	Fair City (1989)
Tom O'Leary Brendan Daly Brendan Daly See fewer	Fair City (1989)
Alan O'Neill Keith McGrath Keith McGrath See fewer	Sons of Anarchy (2008)
Orlaith Rafter Robin McKenna Doyle Robin McKenna Doyle See fewer	Rewind (I) (2010)
Niamh Shaw Frances McGuigan Frances McGuigan See fewer	Dorothy Mills (2008)
Rebecca Smith Annette Daly Annette Daly See fewer	Women Without Wings (2002)
Tony Tormey Paul Brennan Paul Brennan See fewer	Fair City (1989)