Rooney Mara - 'The Girl With the Dragon Tattoo' descends from a very Irish family. Her uncle was even the United States Ambassador to Ireland at one time.
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Olivia Wilde - This rising actress has Irish citizenship
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Zooey Deschanel - With bright blue eyes and long dark locks, 'The New Girl' Zooey's beauty and humor charms the men
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(Photo by Frederick M. Brown/Getty Images)Looking bold in emerald green to bring out the greeness of her eyes, Connelly is a dark Irish beauty we can't take our eyes off of.
(Photo by Dave Hogan/Getty Images)The 'Knocked Up' and 'Grey's Anatomy' star has both Irish and German heritage.
(Photo by Kevin Winter/Getty Images)Proud of her Irish roots, Barrymore took a road trip around Ireland in 2001 where she ran around wheat fields...naked!
(Photo by Pascal Le Segretain/Getty Images)The young Oscar host has main ancestry roots in Ireland.
(Photo by John Shearer/Getty Images)With bodacious curves, Heather Graham can steal any scene she's in on the big screen.
(Photo by Gareth Cattermole/Getty Images For Dubai International Film Festival)The bad boy of the Irishmen, Colin Farrell is as talented as he is irresistible to women.
(Photo by Stephen Lovekin/Getty Images)Classy and sophisticated, it's no wonder the Irish actor made the perfect James Bond.
(Photo by Frazer Harrison/Getty Images)In a recent poll, Irish Americans voted Liam Neeson the top Irish actor they're most proud of!
(Photo by Frazer Harrison/Getty Images)Born in Pennsylvania, Cooper's father was from Ireland and passed down those great Irish genes!
(Photo by Vittorio Zunino Celotto/Getty Images)Hollywood's most notorious bachelor, Clooney has Irish roots back to his great-grandparents.