Name	Known for
James Nesbitt DCI Tom Brannick DCI Tom Brannick See fewer	The Hobbit: An Unexpected Journey (2012)
Lorcan Cranitch DCS Jackie Twomey DCS Jackie Twomey See fewer	Cracker (1993)
Lisa Dwan Tori Matthews Tori Matthews See fewer	Top Boy (2011)
Ian McElhinney Adam Corry Adam Corry See fewer	Hamlet (1996)
Charlene McKenna DS Niamh McGovern DS Niamh McGovern See fewer	Raw (2008)
Lola Petticrew Izzy Brannick Izzy Brannick See fewer	She Said (2022)
Chris Walley DC Billy 'Birdy' Bird DC Billy 'Birdy' Bird See fewer	The Last Voyage of the Demeter (2023)
Peter Ballance Pat Keenan Pat Keenan See fewer	Game of Thrones (2011)
Caolan Byrne Ben McFarland Ben McFarland See fewer	The Miniaturist (2017)
Emer Casey Sandwich Shop Owner Sandwich Shop Owner See fewer	The Tourist (2022)
Kathy Kiera Clarke Claire Keenan Claire Keenan See fewer	Bloody Sunday (2002)
Roy Heaybeard Farmer Farmer See fewer	Finbar's Class (1995)
Cara Kelly Siobhan Harkin Siobhan Harkin See fewer	State of Play (2003)
Matthew Sharpe Constable Scott Constable Scott See fewer	Ordinary Love (2019)
Sean Sloan Pat's Solicitor Pat's Solicitor See fewer	Stand Off (2011)
Michael Smiley Justin 'Dinger' Bell Justin 'Dinger' Bell See fewer	Kill List (2011)
Hugh Irvine CSI Officer (uncredited) CSI Officer (uncredited) See fewer	Black Medicine (2021)
Mark Quigley Detective (uncredited) Detective (uncredited) See fewer	Resistance (2019)