
Threatening the British Empire, the Irish were left with only each other to fight. The narrative follows the intense 1921 negotiations that saw Michael Collins, representing the unrecognised Irish Republic, secure the Anglo‑Irish Treaty with the British government, a pivotal moment that reshaped Ireland’s destiny.
Does The Treaty have end credit scenes?
No!
The Treaty does not have end credit scenes. You can leave when the credits roll.
Explore the complete cast of The Treaty, including both lead and supporting actors. Learn who plays each character, discover their past roles and achievements, and find out what makes this ensemble cast stand out in the world of film and television.

Brendan Gleeson
Michael Collins

David Wilmot
Niall

Ian Bannen
David Lloyd George

Sheila Flitton
Woman 1

Bosco Hogan
Erskine Childers

Christopher Casson
Lord French

David Carey
Austin Stack

Tom Hickey
Eamonn Duggan

Tony Doyle
Arthur Griffith

Barry McGovern
Eamon de Valera

John Olohan
Sean O’Murthuile

Owen Roe
George Gavan Duffy

Alan Stanford
Lord Birkenhead

Peadar Lamb
Sir John Lavery

Tim Wylton
Tom Jones

Dave Duffy
Joe McGrath

Anna Manahan
Woman 2

Ronan Wilmot
Cathay Brugha

Mal Whyte
Colonel

Jonathan Lewis

Barry Cassin
Butler

Anne Byrne
Frances Stevenson

Pat Laffan
Bishop

Laurie Morton
Woman 3

John Warner
King George V

Patrick Condren
Liam Tobin

Malcolm Douglas
Harry Boland

Richard Michaelis
Roadblock Sergeant

Liam O'Callaghan
Sir Henry Wilson

Joshua Losey
Roadblock Captain

Wesley Murphy
British Civil Servant

Alan Barry
Austen Chamberlain

Brian McGrath
Robert Barton

Tom Lawler
Batt O’Connor

Ann Thornton
Hazel Lavery

Aisling Flitton
Waitress 2

Jill Doyle
Waitress 1

Rachel Dowling
Kathleen MacKenna
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