The Treaty - Cast

Name	Known for
Brendan Gleeson Michael Collins Michael Collins See fewer	Calvary (2014)
Patrick Condren Liam Tobin Liam Tobin See fewer	The Last Duel (2021)
Ian Bannen David Lloyd George David Lloyd George See fewer	Waking Ned Devine (1998)
Julian Fellowes Winston Churchill Winston Churchill See fewer	Gosford Park (2001)
Malcolm Douglas Harry Boland Harry Boland See fewer	Reign of Fire (2002)
Dave Duffy Joe McGrath Joe McGrath See fewer	In the Name of the Father (1993)
Joshua Losey Roadblock Captain Roadblock Captain See fewer	Pascali's Island (1988)
Richard Michaelis Roadblock Sergeant Roadblock Sergeant See fewer	In the Name of the Father (1993)
Liam O'Callaghan Sir Henry Wilson Sir Henry Wilson See fewer	Excalibur (1981)
Anne Byrne Frances Stevenson Frances Stevenson See fewer	The Clinic (I) (2003)
Tim Wylton Tom Jones Tom Jones See fewer	Pride and Prejudice (1995)
Barry McGovern Eamon de Valera Eamon de Valera See fewer	Braveheart (1995)
John Warner King George V King George V See fewer	Potter (1979)
Wesley Murphy British Civil Servant British Civil Servant See fewer	Far and Away (1992)
Mal Whyte Colonel Colonel See fewer	Once (I) (2007)
Alan Stanford Lord Birkenhead Lord Birkenhead See fewer	Michael Collins (1996)
Alan Barry Austen Chamberlain Austen Chamberlain See fewer	The Bounty (1984)
David Carey Austin Stack Austin Stack See fewer	The Treaty (1991)
Bosco Hogan Erskine Childers Erskine Childers See fewer	The Professor and the Madman (2019)
Ronan Wilmot Cathal Brugha Cathal Brugha See fewer	In the Name of the Father (1993)
Tony Doyle Arthur Griffith Arthur Griffith See fewer	Ballykissangel (1996)
Brian McGrath Robert Barton Robert Barton See fewer	P.S. I Love You (2007)
Tom Lawler Batt O'Connor Batt O'Connor See fewer	Raggsy the Runner (2012)
Sheila Flitton Woman 1 Woman 1 See fewer	The Banshees of Inisherin (2022)
Anna Manahan Woman 2 Woman 2 See fewer	Clash of the Titans (1981)
Laurie Morton Woman 3 Woman 3 See fewer	Strumpet City (1980)
Peadar Lamb Sir John Lavery Sir John Lavery See fewer	Far and Away (1992)
Ann Thornton Hazel Lavery Hazel Lavery See fewer	Great Performances (1971)
David Wilmot Niall Niall See fewer	Anna Karenina (I) (2012)
Jill Doyle Waitress 1 Waitress 1 See fewer	The Woman Who Married Clark Gable (1985)
Aisling Flitton Waitress 2 Waitress 2 See fewer	Widows' Peak (1994)
John Olohan Sean O'Murthuile Sean O'Murthuile See fewer	Rawhead Rex (1986)
Owen Roe George Gavan Duffy George Gavan Duffy See fewer	Michael Collins (1996)
Tom Hickey Eamonn Duggan Eamonn Duggan See fewer	Possession (2002)
Rachael Dowling Kathleen MacKenna Kathleen MacKenna See fewer	In the Name of the Father (1993)
Barry Cassin Butler Butler See fewer	The Count of Monte Cristo (2002)
Pat Laffan Bishop Bishop See fewer	The Saint (1997)
Christopher Casson Lord French Lord French See fewer	Zardoz (1974)