Dermot O'Neill [Edit] By Sticky Facts Editorial StaffDermot O'Neill biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:What is Dermot O'Neill nationality?IrishWhat is Dermot O'Neill's occupation?Actor Tags: actorirish Suggested Posts Aaliyah Facts Charlize Theron Facts James Gandolfini Facts Ariana Grande Facts Beyoncé Knowles Facts Jim Carrey Facts Shaquille O'Neal Facts Amy Winehouse Facts