10-Fiona Glascott in Anton Chekhov's The Duel-2010
9-Victoria Smurfit in The Last Great Wilderness-2002
8-Michelle Fairley in Comics-(1993 - 1993)
7-Paula Malcomson in Deadwood-(2004 - 2006)
6-Nora-Jane Noone in The Magdalene Sisters-2002
5-Katie McGrath in Labyrinth-(2012 - 2012)
4-Ruth Negga in The Samaritan-2012
3-Joanne King in The Tudors-(2007 - 2010)
2-Kerry Condon in Rome-(2005 - 2007)
1-Caitriona Balfe in Outlander-(2014 - )