Fiona Gibney [Edit] By Sticky Facts Editorial StaffFiona Gibney biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:What is Fiona Gibney nationality?IrishWhat is Fiona Gibney's occupation?ActressFiona Gibney sister(s):Jennifer Gibney Fiona Gibney family:Brendan O'Carroll Tags: actressirish Suggested Posts Julia Roberts Facts Zinédine Zidane Facts David Bowie Facts Mila Kunis Facts Emma Watson Facts Aaliyah Facts Robert Downey Jr. Facts James Gandolfini Facts