Liam Neeson as Michael Collins

Aidan Quinn as Harry Roland

Stephen Rea as Ned Broy

Alan Rickman as Eamon de Valera

Julia Roberts as Kitty Kiernan

Ian Hart as Joe O'Reilly

Brendan Gleeson as Liam Tobin

Stuart Graham as Tom Cullen

Sean McGinley as Smith

Gerard McSorley as Cathal Brugha

Jonathan Rhys Meyers as Collin's Assassin

Charles Dance as Soames

Richard Ingram as British Officer

John Kenny as Patrick Pearse

Ronan McCairbre as Thomas MacDonagh

Jer O'Leary as Thomas Clarke

Mike Dwyer as James Connolly

Martin Murphy as Captain Lee-Wilson

Gary Whelan as Hoey

Frank O'Sullivan as Kavanagh

Frank Laverty as Sean McKeoin

Owen O'Neill as Rory O'Connor

Liam De Staic as Austin Stack

Owen Roe as Arthur Griffith

Paul Bennett as Cosgrave

Claude Clancy as Vaughan's Hotel Clerk

Paul Hickey as Dublin Castle Soldier

Tom Murphy as Vinny Byrne

David Gorry as Charlie Dalton

Gary Lydon as Squad Youth #1

David Wilmot as Squad Youth #2

Joe Hanley as Squad Man #1

Colm Coogan as Squad Man #2

Aiden Grennell as Chaplain at Lincoln Jail

Dave Seymour as Lincoln Taxi Driver

Ian McElhinney as Belfast Detective

Tony Clarkin as Soldier on Station

Luke Hayden as McCrae

Gary Powell as Black and Tan on Lorry

Max Hafler as Black and Tan on Lorry

Laura Brennan as Rosie

Aidan Kelly as Gresham Hotel Bellboy

Jim Isherwood as Man Following Broy

Michael James Ford as Black and Tan

Mal Whyte as Officer in Bath

Martin Phillips as Officer in Bed

Aisling O'Sullivan as Girl in Bed

Malcolm Douglas as Officer in Park

Brian 'Joker' Mulvey as Croke Park Hurler

Frank Patterson as Tenor in Restaurant

Peter O'Brien as Pianist in Restaurant

Michael McCabe as Journalist

Vinnie McCabe as Speaker in the Dail

Alan Stanford as Vice-Consul McCready

Gary Mullan as Young Gunman

Barry Barnes as Free State Soldier

Denis Conway as Republican #1

Don Wycherley as Republican #2

Paraic Breathnach as Santry the Blacksmith

Terry Woods as Drinker in Pub

Conor Breen as Drunk (uncredited)

Lesley Conroy as Party Guest (uncredited)

Karl Dawson as Tenament Boy (uncredited)

Alan Joyce as Tenement Tenant (uncredited)

Gareth Molan as Tenement Boy (uncredited)

Deirdre Mulrooney as Woman (uncredited)

Joe Redmond as Kid with Gun (uncredited)

Jean Kennedy Smith as Woman That Gives Directions to Collins (uncredited)

Ian Dillon as Bloody Sunday Spectator (uncredited)