Colm Meaney

as Tom O'Flanagan (voice)

as Windsor Plane - Pilot

as Detective Dunnigan

as Agent Duncan Malloy

as Major Ambrose

as Gene

as Jonathan Snow

as Miles O'Brien

as Daumer

as Father Francis Morgan

as Shelley Kelly

as Kelly

as Cowen

as George Raynor

as Patrick Barker

as Brandon

as Cop at Tess'

as Miles O'Brien

as Bandler

as Irwin Malcolm

as Ethan Mack

as Myles Standish (voice)

as Don Revie

as Wyatt Landon

as Finn Wallace

as Robert McQue

as Jimmy Rabbitte, Sr.

as Monsieur Rousset

as Patt Farrell

as David Hunter

as Mr. Dugan (voice)

as Thomas 'Doc' Durant

as Jake Slicker

as Wainwright

as Bernie Ohls

as Keterina Suitor (as Colm Meany)

as Harold Garrett

as Grandfather (voice)

as Morgan the Goat

as Roland Potts

as Frank Ellroy

as Mayor Scott Pitcher

as Jimmy McClure

as Charge D'Affaires

as Dr. Lionel Badger

as Mr. Bergin

as Colm “Daddy” Whelan

as Jerry Lynch

as Mason

as Dermot O'Brien

as Elder Beacon

as Francis I of France

as King of Hearts

as Gavin

as Geronimo's Dad

as Ray

as Seamus Muldoon

as Constable

as Dessie Curley

as Frank Monaghan

as Larry

as Detective Weller

as Martin McGuinness

as Gerry McGurn

as Fred Daly

as Self - Narrator (voice)

as Self

as Barreller

as Jim Davern

as Detective Donall Crowley

as Tommy Cassidy

as Vincent

as Father Avital

as Father Colum O'Hara

as Bob O'Donnell

as The Horse

as Jackie O'Hara

as James Burbage

as Martyn

as Caleb

as Roland Cain

as Benjamin Franklin

as Jimmy

as Harry

as Gin O'Malley

as Harry

as Trevor Jones

as Mr. Tumlinson

as Ciáran

as Chief Miles O'Brien (archive footage)

as Kieran Walsh

as Cody

as Mark O'Reilly

as Seamus

as Mr. Barr

as Tom

as Peter Howell

as Joe Mullan

as Inspector Brackenreid

as H.L. Mencken

as Self

as Al Sheehan

as Father Peter

as Tinkerer

as Keith Moore

as Fury

as Steve

as Detective

as Ian Bailey

as Giannopoulos

as Self

as Sean

as Miles O'Brien

as Gibbons

as Martin Logan

as Major Brendan Archer

as Dessie Curley

as Frank Kensay

as Meagher

as Self

as Leslie

as Big Daddy

as Peter Smolett

as Frank Lazaras

as Himself

as Self

as MacDonell

as Fintan McGuire

as Kevin Murphy

as Jonathan

as Younger Protestant

as Miles O'Brien

as Self

as George Titac

as The No Man/ Bill

as Thomas Hutchings

as Inspector Brackenreid

as Inspector Brackenreid

as Self

as Self

as J. Pierpont Morgan

as Miles O'Brien

as Self / Narrator

as Self