Rusty
Freddy Cousaert
(voice)
Alisdair Macdonald
Joe Quimby Sr. (voice) (1 episode)
Jackie Sullivan
Self - Nominee (1 episode)
Colm Doherty
Self - Host (1 episode)
Huntsman (voice)
Donald Trump (2 episodes)
Jimmy
Irishman (segment "The Mortal Remains")
Captain Vicks (voice)
Jeremiah
Producer
Director
Knuckles McGinty
Detective Bill Hodges (30 episodes)
Donald Horner
Thomas Coughlin
Joseph Lynch
Colby Culter
Otto Quangel
Old Thomas Nickerson
Arthur Steed
Searbhán
The Alienist
Conor / Mac Lir (voice)
Murray French
General Brigham
Father James Lavelle
Victor Doyle
Henry Osborne
The Pirate With Gout
The Pirate with Gout (voice)
Colonel Hamilton
David Barlow
Dr. Holloran
Dermot Weld
Sergeant Gerry Boyle
Alastor 'Mad-Eye' Moody
Self - Narrator (voice) (7 episodes)
Con Keogh
Martin Brown
Darren Perrier
Winston Churchill
Abbot Cellach (voice)
Wiglaf
Desmond McKay
Alastor 'Mad-Eye' Moody
Liam O'Leary
Walter Keegan
Alastor 'Mad-Eye' Moody
John Joe Kenny
Reynald de Chatillon
Ferny Toro (voice) (2 episodes)
Donnelly
August Nicholson
Menelaos
De Jagar
Stobrod Thewes
Walter 'Monk' McGinn
Jack van Meter
Frank
Lord Johnson-Johnson
Mickie Abraxas
Harry McKee
Simple Simon
Marc Stevenson
Jim Menzies
Sheriff Hank Keough
Garda Jim
Sweety Barrett
Martin Cahill
Father Bubbles
Bunny Kelly
Barney Mooney
Stubbs
Richard
Frank Ferguson
Liam Tobin
Ginger
Hamish Campbell
Lester
Thomas Macken
Inspector Bolger
Social Club Policeman
Michael Collins
Quarryman
Brendan Dowd