Niall Ó Sioradáin is known for Vikings (2013), Fair City (1989) and Kin (2021).
Vikings
Kin
At Death's Door
The Clinic
Rebel Heart
Bouncer
IRA Man
Ross Wilkinson
Preist Uppsala, Pagan Priest (as Niall O'Siordain), Chief Priest (as Niall O'Siordain), Chief Priest (as Naill O'Siordain)
James Quinn
