All Cast
Colin Morgan
Michael O'Hara
Aml Ameen
Tempest
Mark Strong
Holland
Felicity Jones
Catherine
Sophia Brown
Ruth
Tom Vaughan-Lawlor
Keenan
Will Keen
Woodville
Mairéad Tyers
Carol
Dara Devaney
Twomey
Andrea Irvine
Fiadh
Jack McMullen
Cole
Steve Wall
Quinn
Caolan Byrne
Hogan
Stephen McMillan
Lynch
Hywel Morgan
Uniformed Officer 2
Martin McCardie
Vet
Desmond Edwards
Special Branch Detective
Marianne McIvor
Jeanette (uncredited)