Name	Known for
Michael Gough Arthur Apple Arthur Apple See fewer	Batman & Robin (1997)
Patrick Malahide Colonel Mailer Colonel Mailer See fewer	The World Is Not Enough (1999)
John Kavanagh Seamus Reilly Seamus Reilly See fewer	Alexander (2004)
Tony Doyle John Axton John Axton See fewer	Ballykissangel (1996)
Jonathan Hyde Colonel Shrapnell Colonel Shrapnell See fewer	Titanic (1997)
Ian McElhinney O'Hare O'Hare See fewer	Hamlet (1996)
Derrick O'Connor Barton Barton See fewer	Deep Rising (1998)
Adrian Dunbar Martin Deeley Martin Deeley See fewer	The Crying Game (1992)
Paul Brooke Ballister Ballister See fewer	The Phantom of the Opera (2004)
Sean Caffrey IRA Chief of Staff IRA Chief of Staff See fewer	Doctor Who (1963)
Frankie McCafferty Fergal Fergal See fewer	Philomena (2013)
Nicholas Gecks Captain Little Captain Little See fewer	Mutant Chronicles (2008)
Donald Pickering Official Official See fewer	The Man Who Knew Too Little (1997)
Michelle Fairley Kate Kate See fewer	Game of Thrones (2011)
Valerie Lilley May Donnelly May Donnelly See fewer	Scully (1984)
John Keegan Eddie McCluskey Eddie McCluskey See fewer	Lifeforce (1985)
Paddy Rocks Regan (as Patrick Rocks) Regan (as Patrick Rocks) See fewer	Starred Up (2013)
John Hewitt Pat Moran Pat Moran See fewer	The Boxer (1997)
Peter Taggart Danny Danny See fewer	Children of the North (1991)
Trevor Moore Tom Kelly Tom Kelly See fewer	Children of the North (1991)
B.J. Hogg Sean Sean See fewer	Hunger (2008)
Toby Byrne Dowling Dowling See fewer	Doctor Who (1963)
Brian McGrath McIlliver McIlliver See fewer	P.S. I Love You (2007)
Eileen Pollock Fiona Moran Fiona Moran See fewer	Far and Away (1992)
Olivia Nash McCluskey's mother McCluskey's mother See fewer	Give My Head Peace (1998)
Michael Gormley Republican Club Doorman Republican Club Doorman See fewer	The Schooner (1983)
David Hounslow Hanley (alias Mike Leysdown) Hanley (alias Mike Leysdown) See fewer	The Man Who Knew Too Little (1997)
Lois Butlin Cheryl Cheryl See fewer	Children of the North (1991)
Helena Little Lorna Barton Lorna Barton See fewer	I Capture the Castle (2003)
Barry Birch Luke O'Callaghan Luke O'Callaghan See fewer	Crime Traveller (1997)
Bernard Latham First Man First Man See fewer	Erik the Viking (1989)
Tony O'Callaghan Second Man Second Man See fewer	The Loss Adjuster (2020)
Liam McHugh Barton's Son Barton's Son See fewer	Children of the North (1991)