Michael McElhatton

as John Potter

as Narrator

as Orson

as CC Ronald Gregory

as Jean de Merteuil

as Tam al'Thor

as Lieutenant

as Bernard de Latour

as Black Clad Alpha

as Ward

as Jafet Lindeberg

as Frank Delaney

as Self - Narrator (voice)

as Prosecutor Andrei Stepashin

as Sir Arthur Conan Doyle

as Poem Narrator

as Bill Tuttle

as Felix (voice)

as Petrovich (voice)

as Dr. Markoe

as Black Clad Alpha

as Jim Kavanagh

as Jack's Eye

as Philipp Lenard

as Jonas Salk

as Jerzyk

as Walter Curly

as Sheriff Sheldon

as General McEntee

as Matt

as Laurence (voice)

as Colm Donnelly

as Black Knight

as John Hawkins

as Rob Breedlove

as Brian

as Albert Hatton

as Liam Hughes

as Mr. Moore

as James Clarke

as Roose Bolton

as Ross

as Pat Lynch

as Frank

as Ivan

as Robbie

as Leo Amery MP

as Mechanic

as Martin (voice)

as Ghost of Christmas Present

as Rats

as narrator

as Sam

as Jock

as Robert

as Cathal Brugha

as John Traynor

as Voice

as Garrett

as Detective Sergeant Hogan

as Johnner Doyle

as John

as Eamonn McCarty